Genetic analyses reveal independent domestication origins of the emerging oil crop Paeonia ostii, a tree peony with a long-term cultivation history.
Genetic analyses reveal independent domestication origins of the emerging oil crop Paeonia ostii, a tree peony with a long-term cultivation history.
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遗传分析揭示了新兴油料作物牡丹（Paeonia ostii）的独立驯化起源，这是一种具有长期栽培历史的牡丹
DOI：
10.1038/s41598-017-04744-z
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发表时间：
2017-07-13
影响因子：
4.6
通讯作者：
Mao JF
中科院分区：
文献类型：
--
作者：
Peng LP;Cai CF;Zhong Y;Xu XX;Xian HL;Cheng FY;Mao JF
牡丹属牡丹属植物，是一种新兴的油料作物，具有重要的药用和油料用途，在我国广泛种植。消除该物种的遗传多样性和驯化历史对于进一步的遗传改良和部署非常重要。我们首先通过转录组挖掘、分离分析和多态性表征筛选出29个简单重复序列（SSR）；然后，使用充分表征的 SSR 标记对来自整个范围样本的 901 个个体进行基因分型。我们观察到个体间遗传多样性中等，陕西省被确定为我们栽培植物遗传多样性的中心。通过STRUCTURE分析检测到5个分离良好的基因库，结果表明陕西省和安徽省铜陵市存在多个独立的驯化起源。总而言之，遗传证据和历史记录表明该植物在山东、河南和湖南等省驯化后曾多次远距离引入。本研究首次对 P. 的驯化历史进行了遗传评估。 ostii，我们的结果为这一重要作物的进一步遗传改良和部署提供了重要参考。
Paeonia ostii, a member of tree peony, is an emerging oil crop with important medical and oil uses and widely cultivated in China. Dissolving the genetic diversity and domestication history of this species is important for further genetic improvements and deployments. We firstly selected 29 simple sequence repeats (SSRs) via transcriptome mining, segregation analyses and polymorphism characterizations; then, 901 individuals from the range-wide samples were genotyped using well-characterized SSR markers. We observed moderate genetic diversity among individuals, and Shaanxi Province was identified as the center of genetic diversity for our cultivated plants. Five well-separated gene pools were detected by STRUCTURE analyses, and the results suggested that multiple independent domestication origins occurred in Shaanxi Province and Tongling City (Anhui Province). Taken together, the genetic evidence and the historical records suggest multiple long-distance introductions after the plant was domesticated in Shandong, Henan and Hunan provinces. The present study provides the first genetic evaluation of the domestication history ofP. ostii, and our results provide an important reference for further genetic improvements and deployments of this important crop.
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影响因子：
5.6
作者：
Gao L;Yang H;Liu H;Yang J;Hu Y
通讯作者：
Hu Y
首次利用特异性位点扩增片段测序基因分型构建牡丹高密度遗传图谱
影响因子：
3.7
作者：
Cai C;Cheng FY;Wu J;Zhong Y;Liu G
通讯作者：
Liu G
影响因子：
3.4
作者：
CHASE, MW;HILLS, HH
通讯作者：
HILLS, HH
影响因子：
2.6
作者：
Excoffier, Laurent;Laval, Guillaume;Schneider, Stefan
通讯作者：
Schneider, Stefan
影响因子：
3
作者：
Homolka, Andreas;Berenyi, Maria;Fluch, Silvia
通讯作者：
Fluch, Silvia