[Analysis on the inheritance of inhibition and anti-inhibition of coleoptile purple line in rice and the SSR location of Ai(t) gene].
The ratio of purple line: no-purple line(13:3) was observed in six different F2 populations produced by crossing between parents with purple line and no-purple line in coleoptile. The backcross of XNA//XNA/ 21A150 (XNA, no-purple line and CMS, as the recurrent parent) resulted in a ratio of 1:1 (purple line: no-purple line). Genetic analysis showed that the expression of rice coleoptile purple line was influenced by two genes, inhibiting gene I and anti-inhibiting gene Ai(t). I gene inhibits P gene of C_A_P_ system and Ai(t) inhibits / gene, respectively. The gene pools of Ai(t) ai(t) and ai(t) ai(t) were constructed with BF1 of XNA//XNA/21A150. SSR analysis indicated that Ai(t) gene was linked with the markers of RM335, RM295, RM287 and RM21 and the genetic distance from Ai(t) to these four markers were 2.8 cM, 10.2 cM, 13.9 cM, 26.1 cM, respectively.
Key Open Laboratory of Biotechnology and Crop Quality Improvement of Agricultural Ministry, Southwest Agricultural University, Chongqing 400716, China. zy03392002@yahoo.com.cn
Yi
Y
Zhang
Fu-Cheng
FC
Shen
Guang-Wei
GW
Yang
Guang-Hua
GH
He
Zheng-Sheng
ZS
Zhang
Zheng-Lin
ZL
Yang
D002874:Chromosome Mapping; D018548:Cotyledon / Q000235:genetics*; D017343:Genes, Plant; D008040:Genetic Linkage; D018895:Microsatellite Repeats; D012275:Oryza / Q000235:genetics*