Reference "Identification of quantitative trait loci controlling F2 sterility and heading date in rice"

Reference ID

6842

Title

Identification of quantitative trait loci controlling F2 sterility and heading date in rice

Source

Acta genetica Sinica, 2002, vol. 29, pp. 339-342

Authors (5)

Wang-C-M	Yasui-H
Yoshimura-A	Wan-J-M
Zhai-H-Q

Abstract

Ninety-six F2 lines derived from a cross between a japonica cultivar Taichung 65
and an indica cultivar Bhadua were developed. At the first step, an RFLP linkage
map based on the F2 lines was constructed. The RFLP map contained 94 RFLP
makers. F2 sterility and heading date are important agronomic traits of rice;
meanwhile heading date is related to many characters of agronomic importance
including sterility. Quantitative trait locus (QTL) analysis was carried out to
identify genes controlling F2 sterility and heading date. Both single factor
analysis and interval analysis were applied for QTL analysis. Two QTLs for F2
spikelet sterility were newly detected on Chromosome 1 and 8. Five QTLs for
heading date were detected on Chromosome 1, 4, 6, 8 and 10. Two of them on
chromosome 1 and 10 were newly detected. Near-isogenic lines are now under
construction for further QTL analysis and gene mapping of these QTLs newly
identified in this paper.