Abstract
To study the genetic architecture of anther exsertion, a trait under stabilizing selection in wild radish, artificial selection on anther exsertion was applied for 11 generations. Two replicate lines each of increased and decreased exsertion plus two randomly-mated controls were included. Full pedigree information is available from generation five. To estimate correlated responses to selection, 571 plants from all lines and matrilines were grown in the greenhouse and a number of floral, growth, and phenology traits were measured. To create an outbred F2 mapping population, all possible crosses among the two high and two low exsertion lines were made, using a multiple-family design to capture the genetic variance still present after 11 generations of selection. Six floral traits were measured on 40 parents, 240 F1, and 4,868 F2 offspring. Opportunities for reuse of these data include traits not previously analyzed, other analyses, especially using the pedigree and fitness data, and seeds from all generations and photos of flowers in the later generations are available.
Highlights
The genetic correlation between filament and corolla tube lengths in wild radish is very high in magnitude (0.85, ref. 1), estimated with precision, and known to be caused by pleiotropy or extremely tight linkage[2]
The relative lengths of these two traits determine the position of the pollen-bearing anthers relative to the opening of the corolla tube; this composite trait is called anther exsertion, which can be defined as ln-long stamen filament length minus ln-corolla tube length
This paper describes six datasets derived from a series of studies designed to understand selection and genetics of anther exsertion; Figure 1 gives a flowchart of all of the experiments
Summary
Background & SummaryThe genetic correlation between filament and corolla tube lengths in wild radish is very high in magnitude (0.85, ref. 1), estimated with precision, and known to be caused by pleiotropy or extremely tight linkage[2]. To test for correlated responses to this selection, after five (replicate 1) or six (replicate 2) generations, 571 plants evenly distributed across the two high, two low, and two control selection lines were grown and 12 floral traits were measured, as well as flowering time and aboveground biomass.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
