Registration of Tx3499-Tx3503 sorghum germplasm resistant to acetyl-coenzyme A carboxylase-inhibiting herbicides

Authors

• Daniel Crozier, Texas A & M University - College Station
• Muthukumar Bagavathiannan, Texas A & M UniversityFollow
• George L. Hodnett, Texas A & M University - College Station
• Jason K. Norsworthy, University of Arkansas, FayettevilleFollow
• Kayla A. Beechinor, Texas A & M University - College Station
• William L. Rooney, Texas A & M University

Document Type

Article

Publication Date

1-27-2025

Keywords

COA Carboxylase, interference, mutations, herbicides

Abstract

The sorghum [Sorghum bicolor (L.) Moench ssp. bicolor] germplasm lines Tx3499-Tx3503 (Reg. no. GP-948-Reg. no. GP-952, PI 706257-PI 706261) were developed by the Texas A&M AgriLife Research sorghum breeding program in 2024. These lines are resistant to acetyl-coenzyme A carboxylase (ACCase)-inhibiting herbicides used for post-emergence control of common grass weeds. Genetic resistance to aryloxyphenoxypropionate and phenylpyrazoline class herbicides was introgressed into Tx3499-Tx3503 from a donor line that contained a single partially dominant gene. These lines represent diverse pedigrees and an array of combinations of grain color, plant color, maintenance of sterility or restoration of fertility to A1 male-sterile cytoplasm, as well as other agronomic traits. They provide the sorghum industry with sources of resistance to ACCase-inhibiting herbicides in elite backgrounds for use as seed and pollinator parent germplasm.

Comments

Web of Science

Wiley

Citation

Crozier, D., Bagavathiannan, M., Hodnett, G. L., Norsworthy, J. K., Beechinor, K. A., & Rooney, W. L. (2025). Registration of Tx3499–Tx3503 sorghum germplasm resistant to acetyl-coenzyme A carboxylase-inhibiting herbicides. Journal of Plant Registrations, 19, e20410. https://doi.org/10.1002/plr2.20410

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