Identification of a double recessive genotype for 'B' genes controlling presence and absence of pigmented testa in sorghum

Nath, B and Omran, A O and House, L R (1985) Identification of a double recessive genotype for 'B' genes controlling presence and absence of pigmented testa in sorghum. Cereals Research Communications, 13 (2-3). pp. 277-279. ISSN 0133-3720

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Abstract

The dominant complementary genes B1 and B2, in combination with a spreader gene, S, produce grains with a brown testa and undesirable high tannin content. Thirteen white-grained cytoplasmically male-sterile lines without a pigmented testa were crossed with 2 white-grained testers, IS475 (B1B1 b2b2 SS) and BTx623 (b1b1 B2B2 SS). On the basis of grain colour of F1 plants, 12 of the lines were of genotype b1b1 B2B2 and one (SPL76A) was b1b1 b2b2. SPL76A is considered useful as a seed parent for developing tannin-free hybrids in combination with white-grained restorers of any origin

Item Type:	Article
Divisions:	UNSPECIFIED
CRP:	UNSPECIFIED
Uncontrolled Keywords:	Cytoplasmic male-sterile (a) line, testers, tannins, testa
Subjects:	Mandate crops > Sorghum Others > Genetics and Genomics
Depositing User:	Mr B K Murthy
Date Deposited:	30 Jul 2014 10:37
Last Modified:	30 Jul 2014 10:37
URI:	http://oar.icrisat.org/id/eprint/8247
Official URL:
Projects:	UNSPECIFIED
Funders:	UNSPECIFIED
Acknowledgement:	We are grateful to Dr. F.R. Miller, Associate Professor, Texas A&M University, College Station, TX, USA for giving information on the genetics of testers used in this study. Our thanks are due to Mr. S.S. Bao, Biochemistry Lab., ICRISAT for analysing samples for tannin content.
Links:	Google Scholar

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