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作物学报 ACTA AGRONOMICA SINICA 2010, 36(3): 376384 /
IS japonica rice cultivars, Shennong 265 and
Lijiangxintuanheigu. Five, seven, and ten QTLs controlling chlorophyll contents at tillering stage, heading stage and maturity
stage were detected, respectively. They were distributed on all rice chromosomes except chromosome 5. Comparison of the QTLs
and the genes underlying the key enzymes of chlorophyll biosynthesis and degradation revealed that relatively more QTLs de-
tected at earlier stage co-located with the genes related to chlorophyll biosynthesis and degradation. With the growth stage going
on, more QTLs were detected but only a few of them involved in chlorophyll biosynthesis and degradation. The results suggested
that the expression level of most genes related to chlorophyll biosynthesis (degradation) had no difference at earlier stage but spe-
cific key genes increased at later stage. And two possible genetic bases for stay-green were proposed.
Keywords: Japonica rice; Chlorophyll content; Stay-green; Quantitative trait loci; Chlorophyll biosynthesis and degradation
水稻(Oryza sativa L.)作为世界上最重要的粮食 步), 以及所需的 20 种酶类, 并完成了以拟南芥为代
作物之一, 其产量的 95%来自叶片的光合作用。叶 表的被子植物叶绿素生物合成和降解的全部基因的
绿素是植物参与光合作用的重要色素,
IS japonica rice cultivars, Shennong 265 and
Lijiangxintuanheigu. Five, seven, and ten QTLs controlling chlorophyll contents at tillering stage, heading stage and maturity
stage were detected, respectively. They were distributed on all rice chromosomes except chromosome 5. Comparison of the QTLs
and the genes underlying the key enzymes of chlorophyll biosynthesis and degradation revealed that relatively more QTLs de-
tected at earlier stage co-located with the genes related to chlorophyll biosynthesis and degradation. With the growth stage going
on, more QTLs were detected but only a few of them involved in chlorophyll biosynthesis and degradation. The results suggested
that the expression level of most genes related to chlorophyll biosynthesis (degradation) had no difference at earlier stage but spe-
cific key genes increased at later stage. And two possible genetic bases for stay-green were proposed.
Keywords: Japonica rice; Chlorophyll content; Stay-green; Quantitative trait loci; Chlorophyll biosynthesis and degradation
水稻(Oryza sativa L.)作为世界上最重要的粮食 步), 以及所需的 20 种酶类, 并完成了以拟南芥为代
作物之一, 其产量的 95%来自叶片的光合作用。叶 表的被子植物叶绿素生物合成和降解的全部基因的
绿素是植物参与光合作用的重要色素,
粳稻叶绿素含量QTL与其合成降解相关基因的比较分析 来自淘豆网www.taodocs.com转载请标明出处.