Wang Ai-Yu, Zhang Chun-Qing
State Key Laboratory of Crop Biology, College of Agronomy, Shandong Agricultural University, Tai'an 271018, China.
Yi Chuan. 2008 Aug;30(8):1083-91. doi: 10.3724/sp.j.1005.2008.01083.
In order to explore the genetic basis for chlorophyll content in maize (Zea mays L.), a total of 189 F2 individuals derived from the single cross between the inbred lines A150-3-2 and Mo17 were used as mapping population. Four traits associated with chlorophyll content were measured at the trumpet stage and at the flowering stage. Total 32 QTLs were investigated on all the chromosomes except for chromosomes 6 and 10. There were 24 QTLs located on chromosomes 1, 2, 3, 5, 7, 8, and 9 at the trumpet stage. Six QTLs were investigated for chlorophyll-a content (chla), chlorophyll-b content (chlb), other chlorophyll content (chlc), and total chlorophyll content (chlz), respectively. QTLs for four traits were located in the same marker intervals in many cases. The distance among different QTLs of the four traits in the same marker intervals ranged from 0 to 2 cM. The four major QTLs for chla, chlb, chlc, and chlz at the trumpet stage, which explained 11.63%, 10.3%, 10.77%, and 11.51% of the phenotypic variance, respectively, were investigated between umc1098 and bnlg557 on chromosome 5. There were 8 QTLs located on chromosomes 4 and 5 at the flowering stage, with 2 QTLs for chla, chlb, chlc, and chlz, respectively. QTLs were investigated between umc1098 and bnlg557, which controlled the four chlorophyll content traits (chla, chlb, chlc, and chlz), at the trumpet stage and two chlorophyll content traits (chla and chlb) at the flowering stage. QTLs between umc2308 and bnlg386 for the four traits related to chlorophyll content were investigated only at the flowering stage.
为了探究玉米（Zea mays L.）叶绿素含量的遗传基础，以自交系A150 - 3 - 2和Mo17单交产生的189个F2个体作为作图群体。在大喇叭口期和开花期测定了与叶绿素含量相关的4个性状。除6号和10号染色体外，在所有染色体上共检测到32个QTL。在大喇叭口期，有24个QTL位于1、2、3、5、7、8和9号染色体上。分别对叶绿素a含量（chla）、叶绿素b含量（chlb）、其他叶绿素含量（chlc）和总叶绿素含量（chlz）检测到6个QTL。在许多情况下，4个性状的QTL位于相同的标记区间。同一标记区间内4个性状不同QTL之间的距离为0至2 cM。在5号染色体上umc1098和bnlg557之间检测到了大喇叭口期chla、chlb、chlc和chlz的4个主要QTL，分别解释了表型变异的11.63%、10.3%、10.77%和11.51%。在开花期，有8个QTL位于4号和5号染色体上，chla、chlb、chlc和chlz各有2个QTL。在大喇叭口期，检测到umc1098和bnlg557之间控制4个叶绿素含量性状（chla、chlb、chlc和chlz）的QTL；在开花期，检测到控制2个叶绿素含量性状（chla和chlb）的QTL。仅在开花期检测到umc2308和bnlg386之间与叶绿素含量相关的4个性状的QTL。
