首页|Genetic structure and historical demography of Malus sieversii in the Yili Valley and the western mountains of the Junggar Basin, Xinjiang, China

Genetic structure and historical demography of Malus sieversii in the Yili Valley and the western mountains of the Junggar Basin, Xinjiang, China

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  • 国家科技期刊平台
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Malus sieversii,a wild progenitor of domesticated apple,is distributed in western Xinjiang of China,eastern part of Kazakhstan and Kyrgyzstan in Central Asia.To well understand the genetic structure and the historical demography of this important germplasm resource,we sampled 15 populations with 110 individuals of Malus sieversii from the Yili Valley and the western mountains of the Junggar Basin,Xinjiang,and sequenced two nrDNA fragments for these 110 individuals.Meanwhile,we modeled and compared species distributions under the current and the Last Glacial Maximum climatic conditions.The results showed that populations of M.sieversii from Xinjiang had low levels of genetic diversity and genetic differentiation.During the LGM period,populations of M.sieversii had lost their northern distributions in the western mountains of the Junggar Basin.M.sieversii has experienced a demographic expansion from the south of the Yili Valley to the north of the western mountains of the Junggar Basin during the warm interglacial epochs.Due to the high sensibility of M.sieversii to disturbance,we proposed more attention should be paid to the M.sieversii populations in the western mountains of the Junggar Basin.

Malus sieversiiphylogeographyLEAFY gene intron 1species distribution modelinggenetic diversity

HongXiang ZHANG、MingLi ZHANG、LiNa WANG

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Key Laboratory of Biogeography and Bioresource in Arid Land, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi 830011, China

Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China

Central China Normal University, Wuhan 430079, China

National Basic Research Special Program of ChinaInnovation Research Group Program of Chinese Academy of Sciences and State Administration of Foreign Experts Affairs of ChinState International Science and Technology Cooperation Program of ChinaProgram of the Xinjiang Institute of Ecology and Geography,Chinese Academy of Sciences

2012FY111500KZCX2-YW-T092010DFA92720

2015

10.1007/s40333-014-0044-2

干旱区科学
中国科学院新疆生态与地理研究所,科学出版社

干旱区科学

CSTPCDCSCDSCI
影响因子：1.743
ISSN：1674-6767
年,卷(期)：2015.7(2)
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