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Abstract
An allelic sorghum [Sorghum bicolor (L.) Moench] mutant with thick and narrow erect leaves (Thl) and reduced adaxial stomatal density was isolated from the Annotated Individually pedigreed Mutagenized Sorghum mutant library developed at the Plant Stress and Germplasm Development Unit at Lubbock TX. The mutant, Thl, was isolated from a pedigreed M3 family generated by ethyl methanesulfonate mutagenization from an elite inbred sorghum line, BTx623, which had been used to sequence the sorghum genome. The mutant has been backcrossed to the wild-type BTx623 confirming that the trait results derive from a stable recessive nuclear gene mutation. Herein, we briefly described morphological and selected physiological characteristics of this mutant sorghum.
Highlights
We described an allelic erect leafed [1] sorghum with thick and narrow leaves developed by methane sulfonate induced mutagenesis [2] [3] of BTx623 [4]
An allelic sorghum [Sorghum bicolor (L.) Moench] mutant with thick and narrow erect leaves (Thl) and reduced adaxial stomatal density was isolated from the Annotated Individually pedigreed Mutagenized Sorghum mutant library developed at the Plant Stress and Germplasm Development Unit at Lubbock TX
The Thl leaves adopted a horizontal orientation as the plants approached the reproductive growth stage
Summary
We described an allelic erect leafed [1] sorghum with thick and narrow leaves developed by methane sulfonate induced mutagenesis [2] [3] of BTx623 [4]. This “thick leaf” (Thl) allelic mutant may help to identify genes influencing. The trait might be useful in conferring aphid resistance by increasing the distance between the phloem and epidermis
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