The red bayberry genome and genetic basis of sex determination.
The red bayberry genome and genetic basis of sex determination.
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杨梅基因组及性别决定的遗传基础
DOI：
10.1111/pbi.12985
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发表时间：
2019-03
影响因子：
13.8
通讯作者：
Gao ZS
中科院分区：
文献类型：
--
作者：
Jia HM;Jia HJ;Cai QL;Wang Y;Zhao HB;Yang WF;Wang GY;Li YH;Zhan DL;Shen YT;Niu QF;Chang L;Qiu J;Zhao L;Xie HB;Fu WY;Jin J;Li XW;Jiao Y;Zhou CC;Tu T;Chai CY;Gao JL;Fan LJ;van de Weg E;Wang JY;Gao ZS
杨梅，杨梅，是中国南部的一种重要果树。在这里，我们组装了第一个高质量的杨梅雌雄个体基因组。基因组大小为313-Mb，90%的序列组装成8个伪染色体分子，包含32,493个预测基因。通过雌性和雄性的全基因组比较和与雌性和雄性个体DNA样本序列的关联分析，确定了一个59kb的决定雌性的区域，该区域位于假8号染色体的远端，含有丰富的转座元件和7个推测的基因，其中4个与性花发育有关。这个59kb的雌性专一性区域很可能来自于平行基因的复制和重排，并在雌性专一性区域保留了非重组。在遗传多样性的雌性和雄性种质中，性别特异的分子标记是从与性别共分离的候选基因中开发的。我们建议性别决定遵循女性异婚的ZW模型。杨梅基因组序列为研究植物性染色体进化提供了宝贵的资源，也为杨梅科植物的分子生物学、遗传学和现代育种提供了重要的启示。
Morella rubra, red bayberry, is an economically important fruit tree in south China. Here, we assembled the first high‐quality genome for both a female and a male individual of red bayberry. The genome size was 313‐Mb, and 90% sequences were assembled into eight pseudo chromosome molecules, with 32 493 predicted genes. By whole‐genome comparison between the female and male and association analysis with sequences of bulked and individual DNA samples from female and male, a 59‐Kb region determining female was identified and located on distal end of pseudochromosome 8, which contains abundant transposable element and seven putative genes, four of them are related to sex floral development. This 59‐Kb female‐specific region was likely to be derived from duplication and rearrangement of paralogous genes and retained non‐recombinant in the female‐specific region. Sex‐specific molecular markers developed from candidate genes co‐segregated with sex in a genetically diverse female and male germplasm. We propose sex determination follow the ZW model of female heterogamety. The genome sequence of red bayberry provides a valuable resource for plant sex chromosome evolution and also provides important insights for molecular biology, genetics and modern breeding in Myricaceae family.
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影响因子：
14.2
作者：
JACINTO, CM;NELSON, RP;LOCKEY, RF
通讯作者：
LOCKEY, RF
影响因子：
4.4
作者：
Feng C;Chen M;Xu CJ;Bai L;Yin XR;Li X;Allan AC;Ferguson IB;Chen KS
通讯作者：
Chen KS
影响因子：
8.1
作者：
Cheng, Huan;Chen, Jianle;Ye, Xingqian
通讯作者：
Ye, Xingqian
影响因子：
48
作者：
Chin, Chen-Shan;Peluso, Paul;Schatz, Michael C.
通讯作者：
Schatz, Michael C.
影响因子：
4.4
作者：
Jiao Y;Jia HM;Li XW;Chai ML;Jia HJ;Chen Z;Wang GY;Chai CY;van de Weg E;Gao ZS
通讯作者：
Gao ZS