Research Geneticists Research Articles

The conservation genetics juggling act: integrating genetics and ecology, science and policy.

The field of conservation genetics, when properly implemented, is a constant juggling act integrating molecular genetics, ecology, and demography with applied aspects concerning managing declining species or implementing conservation laws and policies. This young field has grown substantially since the 1980s following the development of polymerase chain reaction and now into the genomics era. Our laboratory has 'grown up' with the field, having worked on these issues for over three decades. Our multidisciplinary approach entails understanding the behavior and ecology of species as well as the underlying processes that contribute to genetic viability. Taking this holistic approach provides a comprehensive understanding of factors that influence species persistence and evolutionary potential while considering annual challenges that occur throughout their life cycle. As a federal laboratory, we are often addressing the needs of the U.S. Fish and Wildlife Service in their efforts to list, de-list, or recover species. Nevertheless, there remains an overall communication gap between research geneticists and biologists who are charged with implementing their results. Therefore, we outline the need for a National Center for Small Population Biology to ameliorate this problem and provide organizations charged with making status decisions firmer ground from which to make their critical decisions.

Every dog has its day: a new journal for canine genetics and epidemiology.

Every dog has its day: a new journal for canine genetics and epidemiology.

Chemical consequences: environmental mutagens, scientist activism, and the rise of genetic toxicology

Here the first historical and sociological account of the formation of an interdisciplinary science known as genetic toxicology, and of the scientists social movement that created it. After research geneticists discovered that synthetic chemicals were capable of changing the genetic structure of living organisms, scientists began to explore how these chemicals affected gene structure and function. In the late 1960s, a small group of biologists became concerned that chemical mutagens represented a serious and possibly global environmental threat. Genetic toxicology is nurtured as much by public culture as by professional practices, reflecting the interplay of genetics research and environmental politics. Drawing on a wealth of resources, Scott Frickel examines the creation of this field through the lens of social movement theory. He reveals how a committed group of scientist-activists transformed chemical mutagens into environmental problems, mobilized existing research networks, recruited scientists and politicians, secured financial resources, and developed new ways of acquiring knowledge. The result is a book that vividly illustrates how science and activism were interwoven to create a discipline that remains a defining feature of environmental health science.

The Calculation of Genetic Risks: Worked Examples in DNA Diagnostics.

This practical guide for both clinical and research geneticists explains how to calculate an individual's genetic risk based on information available from genetic testing and family pedigrees. The book begins with the general theory of estimating genetic risks, then progresses through familial and isolated cases, both simple and complex. Worked examples are provided throughout the text. The disorders are selected to be as widely applicable or adaptable as needed. New to this edition are sections on consanguinity, multipoint linkage analysis, non-parametric methods, homozygosity mapping and physical mapping. There is also a new chapter on other DNA-based calculations, including sections on paternity, zygosity, family reconstructions and quantification aof mitochondrial mutations.

Sire-Daughter and Dam-Daughter Paths: Research Geneticists’ View

The sire-daughter path of genetic improvement dominates the dam-daughter path. Within-herd management practices intended to enhance genetic progress should thus concentrate on the sire-daughter path. Studies of genetic progress via the sire-daughter path from historic and recent estimates show that rates for milk yield have increased in recent years; however, rates are still only half to two-thirds that theoretically possible from single-trait selection. Perceived importance of linear type traits, registry status, and reproductive management considerations influence genetic merit of service sires. Establishment of herd breeding goals and management of the breeding herd by fertility groups appear to be useful approaches to improve genetic merit of service sires. Impact of proposed changes in sire selection methods on demand for proven bulls and sample sires is discussed.

Genetic Progress through Hybridization of Induced and Natural Tetraploids in Crested Wheatgrass

Genetic Progress through Hybridization of Induced and Natural Tetraploids in Crested Wheatgrass

Registration of ‘Hycrest’ Crested Wheatgrass

Crop ScienceVolume 25, Issue 2 cropsci1985.0011183X002500020054x p. 368-369 Registration of Crop Cultivars Registration of ‘Hycrest’ Crested Wheatgrass K. H. Asay, K. H. Asay Research geneticists USDA-ARS, Crops Res. Lab., Utah State Univ., Logan, UT, 84322Search for more papers by this authorD. R. Dewey, D. R. Dewey Research geneticists USDA-ARS, Crops Res. Lab., Utah State Univ., Logan, UT, 84322Search for more papers by this authorF. B. Gomm, F. B. Gomm range scientist USDA-ARS, Crops Res. Lab., Utah State Univ., Logan, UT, 84322Search for more papers by this authorD. A. Johnson, D. A. Johnson plant physiologist USDA-ARS, Crops Res. Lab., Utah State Univ., Logan, UT, 84322Search for more papers by this authorJ. R. Carlson, J. R. Carlson plant materials specialist USDA-SCS, Western Tech. Serv. Ctr., Portland, OR, 97209Search for more papers by this author K. H. Asay, K. H. Asay Research geneticists USDA-ARS, Crops Res. Lab., Utah State Univ., Logan, UT, 84322Search for more papers by this authorD. R. Dewey, D. R. Dewey Research geneticists USDA-ARS, Crops Res. Lab., Utah State Univ., Logan, UT, 84322Search for more papers by this authorF. B. Gomm, F. B. Gomm range scientist USDA-ARS, Crops Res. Lab., Utah State Univ., Logan, UT, 84322Search for more papers by this authorD. A. Johnson, D. A. Johnson plant physiologist USDA-ARS, Crops Res. Lab., Utah State Univ., Logan, UT, 84322Search for more papers by this authorJ. R. Carlson, J. R. Carlson plant materials specialist USDA-SCS, Western Tech. Serv. Ctr., Portland, OR, 97209Search for more papers by this author First published: 01 March 1985 https://doi.org/10.2135/cropsci1985.0011183X002500020054xCitations: 32AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL No abstract is available for this article.Citing Literature Volume25, Issue2March–April 1985Pages 368-369 RelatedInformation

Registration of Pearl Millet Inbreds ‘Tift 23B1E1’ and ‘Tift 23A1E1’

Crop ScienceVolume 25, Issue 2 cropsci1985.0011183X002500020048x p. 366-366 Registration of Crop Cultivars Registration of Pearl Millet Inbreds ‘Tift 23B1E1’ and ‘Tift 23A1E1’ Wayne W. Hanna, Wayne W. Hanna Research geneticists USDA-ARS, and the Univ. of Georgia, College of Agric. Exp. Stn., Coastal Plain Exp. Stn., Tifton, GA, 31793Search for more papers by this authorGlenn W. Burton, Glenn W. Burton Research geneticists USDA-ARS, and the Univ. of Georgia, College of Agric. Exp. Stn., Coastal Plain Exp. Stn., Tifton, GA, 31793Search for more papers by this author Wayne W. Hanna, Wayne W. Hanna Research geneticists USDA-ARS, and the Univ. of Georgia, College of Agric. Exp. Stn., Coastal Plain Exp. Stn., Tifton, GA, 31793Search for more papers by this authorGlenn W. Burton, Glenn W. Burton Research geneticists USDA-ARS, and the Univ. of Georgia, College of Agric. Exp. Stn., Coastal Plain Exp. Stn., Tifton, GA, 31793Search for more papers by this author First published: 01 March 1985 https://doi.org/10.2135/cropsci1985.0011183X002500020048xCitations: 2AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article.Citing Literature Volume25, Issue2March–April 1985Pages 366-366 RelatedInformation

Registration of Sunflower Parental Line HA 2071 (Reg. No. PL31)

Crop ScienceVolume 23, Issue 1 cropsci1983.0011183X002300010091x p. 195-195 Registration of Parental Line Registration of Sunflower Parental Line HA 2071 (Reg. No. PL31) R. E. Stafford, R. E. StaffordSearch for more papers by this authorT. E. Thompson, T. E. Thompson Research geneticists, USDA-ARS, Texas A&M Univ. Agric. Res. and Ext. Ctr., Vernon, TX, 76384; and W.R. Poage Pecan Field Stn., Brownwood, TX 76801Search for more papers by this author R. E. Stafford, R. E. StaffordSearch for more papers by this authorT. E. Thompson, T. E. Thompson Research geneticists, USDA-ARS, Texas A&M Univ. Agric. Res. and Ext. Ctr., Vernon, TX, 76384; and W.R. Poage Pecan Field Stn., Brownwood, TX 76801Search for more papers by this author First published: 01 January 1983 https://doi.org/10.2135/cropsci1983.0011183X002300010091xCitations: 3 1 Registered by the Crop Sci. Soc. of Am. Contribution from USDAARS, in cooperation with the Texas Agric. Exp. Stn., Texas A&M Univ., College Station, TX 77843. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article.Citing Literature Volume23, Issue1January–February 1983Pages 195-195 RelatedInformation

Registration of Largo, a Greenbug Resistant Hexaploid Wheat1 (Reg. No. GP 176)

Crop ScienceVolume 22, Issue 4 cropsci1982.0011183X002200040052x p. 901-902 Registration of Germplasm Registration of Largo, a Greenbug Resistant Hexaploid Wheat1 (Reg. No. GP 176) L. R. Joppa, L. R. JoppaSearch for more papers by this authorN. D. Williams, N. D. Williams Research geneticists, ARS, USDA, c/o Agron. Dep. North Dakota State Univ., Fargo.Search for more papers by this author L. R. Joppa, L. R. JoppaSearch for more papers by this authorN. D. Williams, N. D. Williams Research geneticists, ARS, USDA, c/o Agron. Dep. North Dakota State Univ., Fargo.Search for more papers by this author First published: 01 July 1982 https://doi.org/10.2135/cropsci1982.0011183X002200040052xCitations: 24 1 Registered by the Crop Sci. Soc. of Am. Cooperative investigations of ARS-USDA and the Agric. Exp. Stn., North Dakota State Univ., Fargo, ND 58105. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article.Citing Literature Volume22, Issue4July–August 1982Pages 901-902 RelatedInformation

Registration of BS13(S2)C1 and BS16 Maize Germplasm1 (Reg. No GP 81 and GP 82)

Crop ScienceVolume 19, Issue 5 cropsci1979.0011183X001900050081x p. 755-755 Registration of Germplasm Registration of BS13(S2)C1 and BS16 Maize Germplasm1 (Reg. No GP 81 and GP 82) Arnel R. Hallauer, Arnel R. HallauerSearch for more papers by this authorO. S. Smith, O. S. Smith Research geneticists, AR, SEA, USDA and Dep. of Agronomy, Iowa State Univ., Ames.Search for more papers by this author Arnel R. Hallauer, Arnel R. HallauerSearch for more papers by this authorO. S. Smith, O. S. Smith Research geneticists, AR, SEA, USDA and Dep. of Agronomy, Iowa State Univ., Ames.Search for more papers by this author First published: 01 September 1979 https://doi.org/10.2135/cropsci1979.0011183X001900050081xCitations: 11 1 Contribution of AR, SEA, USDA; Journal Paper No. 9447 of the Iowa Agric. and Home Econ. Exp. Stn., Ames, IA 50011. Project No. 2194 AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article.Citing Literature Volume19, Issue5September–October 1979Pages 755-755 RelatedInformation

Registration of C‐6 Alfalfa Germplasm1 (Reg. No. GP 95)

Crop ScienceVolume 19, Issue 2 cropsci1979.0011183X001900020044x p. 298-298 Registration of Germplasms Registration of C-6 Alfalfa Germplasm1 (Reg. No. GP 95) C. E. Townsend, C. E. Townsend Research geneticists, AR, SEA, USDA, Fort Collins, CO 80523, and Mandan, ND 58554, respectively.Search for more papers by this authorG. A. Rogler, G. A. Rogler Research agronomists, AR, SEA, USDA, Mandan, ND 58554 (Rogler is retired).Search for more papers by this authorA. C. Wilton, A. C. Wilton Research geneticists, AR, SEA, USDA, Fort Collins, CO 80523, and Mandan, ND 58554, respectively.Search for more papers by this authorR. J. Lorenz, R. J. Lorenz Research agronomists, AR, SEA, USDA, Mandan, ND 58554 (Rogler is retired).Search for more papers by this author C. E. Townsend, C. E. Townsend Research geneticists, AR, SEA, USDA, Fort Collins, CO 80523, and Mandan, ND 58554, respectively.Search for more papers by this authorG. A. Rogler, G. A. Rogler Research agronomists, AR, SEA, USDA, Mandan, ND 58554 (Rogler is retired).Search for more papers by this authorA. C. Wilton, A. C. Wilton Research geneticists, AR, SEA, USDA, Fort Collins, CO 80523, and Mandan, ND 58554, respectively.Search for more papers by this authorR. J. Lorenz, R. J. Lorenz Research agronomists, AR, SEA, USDA, Mandan, ND 58554 (Rogler is retired).Search for more papers by this author First published: 01 March 1979 https://doi.org/10.2135/cropsci1979.0011183X001900020044xCitations: 1 1 Registered by the Crop Sci. Soc. Am. Joint contribution of AR, SEA, USDA, and the Colorado State Univ. Exp. Stn., Scientific Series No. 2369. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article.Citing Literature Volume19, Issue2March–April 1979Pages 298-298 RelatedInformation

Registration of 11 Germplasm Lines of Sugarbeets1 (Reg. Nos. GP 20 to GP 30)

Crop ScienceVolume 18, Issue 6 cropsci1978.0011183X001800060070x p. 1100-1100 Registration of Germplasm Registration of 11 Germplasm Lines of Sugarbeets1 (Reg. Nos. GP 20 to GP 30) R. T. Lewellen, R. T. LewellenSearch for more papers by this authorJ. S. McFarlane, J. S. McFarlaneSearch for more papers by this authorI. O. Skoyen, I. O. Skoyen Research geneticists and research agronomist, respectively, FR-SEA-USDA, Salinas, CA 93915.Search for more papers by this author R. T. Lewellen, R. T. LewellenSearch for more papers by this authorJ. S. McFarlane, J. S. McFarlaneSearch for more papers by this authorI. O. Skoyen, I. O. Skoyen Research geneticists and research agronomist, respectively, FR-SEA-USDA, Salinas, CA 93915.Search for more papers by this author First published: 01 November 1978 https://doi.org/10.2135/cropsci1978.0011183X001800060070xCitations: 5 1 Registered by the Crop Sci. Soc. Am. Cooperative investigations of the FR-SEA-USDA, the Beet Sugar Development Foundation, and the California Beet Growers Association, Ltd. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL No abstract is available for this article.Citing Literature Volume18, Issue6November–December 1978Pages 1100-1100 RelatedInformation

Registration of C‐3 Alfalfa Germplasm1 (Reg. No. GP 52)

Crop ScienceVolume 16, Issue 3 cropsci1976.0011183X001600030042x p. 446-446 Registration of Germplasm Registration of C-3 Alfalfa Germplasm1 (Reg. No. GP 52) C. E. Townsend, C. E. Townsend Research geneticists, ARS, USDA; Fort Collins, CO 80523, and St. Paul, MN 55108, respectively.Search for more papers by this authorW. R. Kehr, W. R. Kehr Research agronomists, ARS, USDA; Lincoln, NE 68503; Manhattan, KN 66506; Logan, UT 84322; and Mandan, ND 58554 (retired), respectively.Search for more papers by this authorE. L. Sorensen, E. L. Sorensen Research agronomists, ARS, USDA; Lincoln, NE 68503; Manhattan, KN 66506; Logan, UT 84322; and Mandan, ND 58554 (retired), respectively.Search for more papers by this authorM. D. Rumbaugh, M. D. Rumbaugh Professor of plant science, South Dakota State Univ., Brookings, SD 57006.Search for more papers by this authorM. W. Pedersen, M. W. Pedersen Research agronomists, ARS, USDA; Lincoln, NE 68503; Manhattan, KN 66506; Logan, UT 84322; and Mandan, ND 58554 (retired), respectively.Search for more papers by this authorD. K. Barnes, D. K. Barnes Research geneticists, ARS, USDA; Fort Collins, CO 80523, and St. Paul, MN 55108, respectively.Search for more papers by this authorG. A. Rogler, G. A. Rogler Research agronomists, ARS, USDA; Lincoln, NE 68503; Manhattan, KN 66506; Logan, UT 84322; and Mandan, ND 58554 (retired), respectively.Search for more papers by this authorC. H. Hanson, C. H. Hanson Staff scientist, Beltsville, MD 20705 (retired).Search for more papers by this author C. E. Townsend, C. E. Townsend Research geneticists, ARS, USDA; Fort Collins, CO 80523, and St. Paul, MN 55108, respectively.Search for more papers by this authorW. R. Kehr, W. R. Kehr Research agronomists, ARS, USDA; Lincoln, NE 68503; Manhattan, KN 66506; Logan, UT 84322; and Mandan, ND 58554 (retired), respectively.Search for more papers by this authorE. L. Sorensen, E. L. Sorensen Research agronomists, ARS, USDA; Lincoln, NE 68503; Manhattan, KN 66506; Logan, UT 84322; and Mandan, ND 58554 (retired), respectively.Search for more papers by this authorM. D. Rumbaugh, M. D. Rumbaugh Professor of plant science, South Dakota State Univ., Brookings, SD 57006.Search for more papers by this authorM. W. Pedersen, M. W. Pedersen Research agronomists, ARS, USDA; Lincoln, NE 68503; Manhattan, KN 66506; Logan, UT 84322; and Mandan, ND 58554 (retired), respectively.Search for more papers by this authorD. K. Barnes, D. K. Barnes Research geneticists, ARS, USDA; Fort Collins, CO 80523, and St. Paul, MN 55108, respectively.Search for more papers by this authorG. A. Rogler, G. A. Rogler Research agronomists, ARS, USDA; Lincoln, NE 68503; Manhattan, KN 66506; Logan, UT 84322; and Mandan, ND 58554 (retired), respectively.Search for more papers by this authorC. H. Hanson, C. H. Hanson Staff scientist, Beltsville, MD 20705 (retired).Search for more papers by this author First published: 01 May 1976 https://doi.org/10.2135/cropsci1976.0011183X001600030042xCitations: 1 Registered by the Crop Sci. Soc. of Am. Cooperative investigations by the ARS, USDA and the Colo., Kan., Minn., Neb., S.D., and Utah Agric. Exp. Stns. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article.Citing Literature Volume16, Issue3May–June 1976Pages 446-446 RelatedInformation

Registration of Coastcross‐1 Bermudagrass1 (Reg. No. 9)

Crop ScienceVolume 12, Issue 1 cropsci1972.0011183X001200010049x p. 125-125 Registration of Crop Cultivar Registration of Coastcross-1 Bermudagrass1 (Reg. No. 9) Glenn W. Burton, Glenn W. Burton Research Geneticists, Plant Science Research Division, Agricultural Research Service, U.S. Department of Agricultural and the University of Georgia, College of Agriculture Experiment Stations, Coastal Plain Station, Tifton, Georgia.Search for more papers by this author Glenn W. Burton, Glenn W. Burton Research Geneticists, Plant Science Research Division, Agricultural Research Service, U.S. Department of Agricultural and the University of Georgia, College of Agriculture Experiment Stations, Coastal Plain Station, Tifton, Georgia.Search for more papers by this author First published: 01 January 1972 https://doi.org/10.2135/cropsci1972.0011183X001200010049xCitations: 36 1 Registered by the Crop Science Society of America. Cooperative investigations of the Plant Science Research Division. Agricultural Research Service. U.S. Department of Agriculture, and the University of Georgia, College of Agriculture Experiment Stations, Coastal Plain Station, Tifton, Georgia. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat No abstract is available for this article.Citing Literature Volume12, Issue1January–February 1972Pages 125-125 RelatedInformation

Fertility of Annual Ryegrass ✕ Tall Fescue Amphiploids and Their Derivatives1

Crop ScienceVolume 5, Issue 5 cropsci1965.0011183X000500050005x p. 395-397 Article Fertility of Annual Ryegrass ✕ Tall Fescue Amphiploids and Their Derivatives1 R. C. Buckner, Search for more papers by this authorH. D. Hill, Search for more papers by this authorA. W. Hovin, Search for more papers by this authorP. B. Burrus II, Research Agronomist, Research Geneticists, and Research Agronomist, respectively, Crops Research Division, ARS, USDA.Search for more papers by this author R. C. Buckner, Search for more papers by this authorH. D. Hill, Search for more papers by this authorA. W. Hovin, Search for more papers by this authorP. B. Burrus II, Research Agronomist, Research Geneticists, and Research Agronomist, respectively, Crops Research Division, ARS, USDA.Search for more papers by this author First published: 01 September 1965 https://doi.org/10.2135/cropsci1965.0011183X000500050005xCitations: 5 1 Cooperative investigation at Lexington, Kentucky of the Crops Research Division, ARS, USDA, the Department of Agronomy, Kentucky Agricultural Experiment Station, and U. S. Regional Pasture Research Laboratory, University Park, Pa. The investigation reported is in connection with a project of the Kentucky Agricultural Experiment Station, and the paper (No. 65-3-7) is published with the approval of the Director. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onEmailFacebookTwitterLinked InRedditWechat No abstract is available for this article.Citing Literature Volume5, Issue5September–October 1965Pages 395-397 RelatedInformation

Inheritance of a Pale‐Green Plant Color Mutant in Alfalfa1

Crop ScienceVolume 5, Issue 2 cropsci1965.0011183X000500020030x p. 187-188 Article Inheritance of a Pale-Green Plant Color Mutant in Alfalfa1 D. K. Barnes, D. K. BarnesSearch for more papers by this authorA. W. Hovin, A. W. Hovin Research Geneticists, Crops Research Division, ARS, USDA, U. S. Federal Experiment Station, Mayagüez, Puerto Rico (formerly University Park, Pa.), and U. S. Regional Pasture Research Laboratory, University Park, Pa., respectively.Search for more papers by this author D. K. Barnes, D. K. BarnesSearch for more papers by this authorA. W. Hovin, A. W. Hovin Research Geneticists, Crops Research Division, ARS, USDA, U. S. Federal Experiment Station, Mayagüez, Puerto Rico (formerly University Park, Pa.), and U. S. Regional Pasture Research Laboratory, University Park, Pa., respectively.Search for more papers by this author First published: 01 March 1965 https://doi.org/10.2135/cropsci1965.0011183X000500020030xCitations: 1 1 Contribution No. 213 of the U. S. Regional Pasture Research Laboratory, Crops Research Division, ARS, USDA, University Park, Pa. AboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat No abstract is available for this article.Citing Literature Volume5, Issue2March–April 1965Pages 187-188 RelatedInformation

The Trend of National Intelligence

IN the Galton Lecture for 1946, Prof. Godfrey Thomson marshalls the evidence that leads him to the conclusion that there is at the present time in Britain, and has been for at least twenty-five years, a correlation of approximately –0·25 between the intelligence score of a child of about eleven years and the size of the family of which he (or she) is a member. The facts are no longer in dispute : yet it makes a profound difference to the points of policy on which emphasis might be laid, if any attempt were made to reverse the present tendency, whether the interpretation of the facts is that the average level of innate intelligence in the country is declining, or that the facts merely indicate a differential environmental influence on intelligence test scores. To obtain an accurate interpretation would involve, as Carr-Saunders and Burt point out in their contributions to the symposium in 1947 which followed Thomson‘s Galton Lecture, a team of research geneticists, psychologists, statisticians and sociologists backed by a heavy endowment. Thomson‘s interpretation, on the basis of his own and other people‘s carefully prepared investigations, is that hereditary factors are causing a decline in the national intelligence of at least one point in I.Q. per generation, and probably more. The Trend of National Intelligence By Prof. Godfrey Thomson, with a Symposium by Sir Alexander Carr-Saunders, Sir Cyril Burt, Prof. Lionel Penrose and Prof. Godfrey Thomson. Pp. 35. (London: The Eugenics Society and Hamish Hamilton.) 2s. net.