Genetic mapping of a major QTL promoting homoeologous chromosome pairing in a wheat landrace
Genetic mapping of a major QTL promoting homoeologous chromosome pairing in a wheat landrace
复制标题
促进小麦地方品种同源染色体配对的主要QTL的遗传图谱
DOI：
10.1007/s00122-019-03344-x
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发表时间：
2019-04
影响因子：
5.4
通讯作者：
Hao Ming
中科院分区：
文献类型：
--
作者：
Fan Chaolan;Luo Jiangtao;Zhang Shujie;Liu Meng;Li Qingcheng;Li Yazhou;Huang Lei;Chen Xuejiao;Ning Shunzong;Yuan Zhongwei;Zhang Lianquan;Wang Jirui;Zheng Youliang;Liu Dengcai;Hao Ming
普通小麦地方品种开县罗汉麦携带促进同源染色体配对的基因。一个主要的QTL定位在染色体臂3AL上。摘要中国普通小麦地方品种开县-罗汉麦（KL）及其近缘种的多单倍体杂种染色体配对水平增加。超过90%的配对是在小麦染色体的同源臂之间，其中非常强烈的偏好是来自基因组A和D的同源臂之间的配对。小麦黑麦配对也观察到在低频率。用KL与黑麦的两个小麦基因型进行顶交，建立了两个作图群体。每株植物的平均交叉数用作表型数据。利用小麦660 K和15 K SNP芯片、DArT标记和SSR标记对ABDR杂种进行基因分型。在染色体臂3AL上检测到一个主效QTL，命名为QPh.sicau-3A，它是控制水稻同源配对增加的主效QTL。16%的变化。该QTL位于中国春参考基因组的696-725 Mb区间。将与QPh.sicau-3A紧密连锁的SNP标记转化为KASP标记，并进行标记辅助选择验证。
Key messageCommon wheat landrace Kaixian-luohanmai carries a gene(s) that promotes homoeologous chromosome pairing. A major QTL responsible for this effect was mapped to chromosome arm 3AL.AbstractPolyhaploid hybrids of a Chinese common wheat landrace Kaixian-luohanmai (KL) and related species show increased levels of chromosome pairing. Over 90% of that pairing is between homoeologous arms of wheat chromosomes, with a very strong preference for pairing between homoeologs from genomes A and D. Wheat–rye pairing was also observed at low frequency. Two mapping populations were created from the hybrids of KL with two wheat genotypes top crossed to rye. Mean chiasmata numbers per plant were used as phenotypic data. Wheat 660 K and 15 K SNP arrays, DArT markers and SSR markers were used for genotyping of the top-cross ABDR hybrids. One major QTL, namedQPh.sicau-3A, for increased homoeologous pairing was detected on chromosome arm 3AL, and it was responsible for ca. 16% of the total variation. This QTL was located in the interval 696–725 Mb in the Chinese Spring reference genome. SNP markers closely linked withQPh.sicau-3Awere converted to KASP markers and validated for marker-assisted selection.
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影响因子：
3.3
作者：
Wingen LU;West C;Leverington-Waite M;Collier S;Orford S;Goram R;Yang CY;King J;Allen AM;Burridge A;Edwards KJ;Griffiths S
通讯作者：
Griffiths S
影响因子：
5.4
作者：
JAUHAR, PP;RIERALIZARAZU, O;BENNETT, JH
通讯作者：
BENNETT, JH
DOI：
10.1105/tpc.010082
发表时间：
2001-08
期刊：
The Plant Cell Online
影响因子：
--
作者：
H. Ozkan;A. Levy;M. Feldman
通讯作者：
H. Ozkan;A. Levy;M. Feldman
影响因子：
64.8
作者：
RILEY, R;CHAPMAN, V
通讯作者：
CHAPMAN, V
影响因子：
1.6
作者：
S. Farooq;N. Iqbal;T. Shah
通讯作者：
S. Farooq;N. Iqbal;T. Shah