TY - JOUR
T1 - Identification of endosperm and maternal plant QTLs for protein and lysine contents of rice across different environments
AU - Shi, C. H.
AU - Shi, Y.
AU - Lou, X. Y.
AU - Xu, H. M.
AU - Zheng, X.
AU - Wu, J. G.
PY - 2009
Y1 - 2009
N2 - Using a newly developed mapping model with endosperm and maternal main effects and QTL x environment interaction effects on quantitative quality traits of seed in cereal crops, the investigation of quantitative trait loci (QTLs) located on triploid endosperm and diploid maternal plant genomes for protein content and lysine content of rice grain under different environments was carried out with two backcross (BC1F1 and BC 2F1) populations from a set of 241 recombinant inbred lines derived from an elite hybrid cross of Shanyou 63. The results showed a total of 18 QTLs to be associated with these two quality traits of rice, which were subsequently mapped on chromosomes 2, 3, 5, 6, 7, 10, 11 and 12. Three of these QTLs were also found having QTL x environment interaction effects. Therefore, the genetic main effects from QTLs located on chromosomes in endosperm and maternal plant genomes and their QTL x environment interaction effects in different environments were all important for protein and lysine contents in rice. The influence of environmental factors on the expression of some QTLs located in different genetic systems could not be ignored for both nutrient quality traits.
AB - Using a newly developed mapping model with endosperm and maternal main effects and QTL x environment interaction effects on quantitative quality traits of seed in cereal crops, the investigation of quantitative trait loci (QTLs) located on triploid endosperm and diploid maternal plant genomes for protein content and lysine content of rice grain under different environments was carried out with two backcross (BC1F1 and BC 2F1) populations from a set of 241 recombinant inbred lines derived from an elite hybrid cross of Shanyou 63. The results showed a total of 18 QTLs to be associated with these two quality traits of rice, which were subsequently mapped on chromosomes 2, 3, 5, 6, 7, 10, 11 and 12. Three of these QTLs were also found having QTL x environment interaction effects. Therefore, the genetic main effects from QTLs located on chromosomes in endosperm and maternal plant genomes and their QTL x environment interaction effects in different environments were all important for protein and lysine contents in rice. The influence of environmental factors on the expression of some QTLs located in different genetic systems could not be ignored for both nutrient quality traits.
KW - Genetic main effect
KW - Nutrient quality trait of rice
KW - QTL x environment interaction effect
KW - Quantitative trait locus (QTL)
UR - http://www.scopus.com/inward/record.url?scp=62549160939&partnerID=8YFLogxK
U2 - 10.1071/CP08234
DO - 10.1071/CP08234
M3 - 文章
AN - SCOPUS:62549160939
SN - 1836-0947
VL - 60
SP - 295
EP - 301
JO - Crop and Pasture Science
JF - Crop and Pasture Science
IS - 3
ER -