Registration of BTx623ms8, a new and easily identifiable nuclear male sterile mutant in sorghum

Xin, Z., Chen, J., Jiao, Y., Gladman, N., Hayes, C., Burow, G., Emendack, Y., Burke, J. J. (May 2018) Registration of BTx623ms8, a new and easily identifiable nuclear male sterile mutant in sorghum. Journal of Plant Registrations, 12 (2). pp. 278-281. ISSN 1936-5209

DOI: 10.3198/jpr2017.09.0063crgs


The USDA–ARS has released a new nuclear male sterile sorghum [Sorghum bicolor (L.) Moench] mutant BTx623ms8 (Reg. No. GS-786, PI 682727). Previously, seven sorghum nuclear male sterile mutants have been reported, but three are no longer available. Here we register a new nuclear male sterile mutant isolated from a mutagenized BTx623 mutant library that is genetically different from any of the four male sterile mutants currently available. The ms8 mutant had microscopic transparent anthers that abort early during microsporogenesis. It can be easily identified at early stages of anthesis by the appearance of prominent white, hairy stigma, rather than yellow anthers as seen in BTx623 and all other fertile sorghum accessions. We have developed BC6F2 seeds that produce approximately 50% male sterile plants by pollinating the homozygous ms8 mutants with the heterozygous fertile plants. The ms8 is a single recessive nuclear gene mutation and can be easily bred into other sorghum lines through recurrent backcrossing, broadening the utility of this easily recognizable nuclear male sterility. © Crop Science Society of America. All rights reserved.

Item Type: Paper
Subjects: bioinformatics
organism description > plant
CSHL Authors:
Communities: CSHL labs > Ware lab
Depositing User: Matt Covey
Date: May 2018
Date Deposited: 22 May 2018 16:11
Last Modified: 22 May 2018 16:11

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