Linkage between a basic gene for anthocyanin pigmentation and a complementary gene for purple septum in rice (Oryza sativaL.)

✍ Scribed by C. V. Dhulappanavar; Shanta R. Hiremath; G. P. Sathyavathi

• Publisher: Springer
• Year: 1975
• Tongue: English
• Weight: 302 KB
• Volume: 24
• Category: Article
• ISSN: 0014-2336
• DOI: 10.1007/bf00132900

✦ Synopsis

Twelve characters showed segregation for pigmentation in the rice cross T-141 z K-44-1. Inheritance was complicated by the involvement of the unusual number of genes ranging from two to five with different modes of action such as complementary, duplicate, inhibitory, anti-inhibitory etc. F2 ratios in respect of ten out of twelve characters are reported for the first time. Analysis of the combined segregation data revealed the existence of a pleiotropic basic gene responsible for the formation of purple pigment in eleven characters. This basic gene designated as A (C) is linked with the complementary gene Pm for purple pigmentation at the septum region with the cross-over value of about l 1 per cent. This linkage group forms part of group II1 of M ISRO et al. (1966) corresponding to the ~A' linkage group of TAKAHASHI (1963).