[Analysis on quantitative trait loci associated with leaf chlorophyll content and their interactions with environment at late growth stage of rice].
By using a population of 123 F12 lines (recombinant inbred lines, RILs) derived from a cross between India variety Dular and Japanica variety Lemont, an analysis of quantitative trait loci (QTL) was conducted for the flag leaf chlorophyll content of rice. The chlorophyll content was determined by SPAD-502 in 2005 and 2006, respectively, and software QTLMapper 1.6 was applied to analyze the QTL, including the additive and epistatic effects and the QTL interactions with environment for chlorophyll content. A total of ten QTL showing additive effects on chlorophyll content (Chl) were detected, which accounted for 73.51% of the phenotypic variation. The percentage of phenotypic variation explained by single QTL was 2.08%-20.14%, and the interactions of 6 QTLs with environment (AE) were significant. Epistasis analysis indicated that there existed 13 significant additive x additive interactions on chlorophyll content, 6 pairs of which were significant in additive x additive interactions with environment (AAE).
Sun
Xiao-xia
XX
School of Life Sciences, Fujian Agriculture and Forestry University, Fuzhou 350002, China. joesxiaox@163.com
Deng
Jia-yao
JY
Jiang
Bao-yue
BY
Jia
Xiao-li
XL
Xiong
Jun
J
Lin
Wen-xiong
WX
D002734:Chlorophyll / Q000032:analysis*; D004777:Environment; D012275:Oryza / Q000235:genetics* / Q000254:growth & development / Q000378:metabolism*; D018515:Plant Leaves / Q000378:metabolism*; D040641:Quantitative Trait Loci / Q000235:genetics*; D013997:Time Factors
D002734:Chlorophyll