文献类型：期刊文献

英文题名：Clonal reproduction and natural variation of Populus canescens patches

作者：He, Caiyun[1] Zheng, Shuxing[1,2] Zhang, Jianguo[1] Duan, Aiguo[1] Zeng, Yanfei[1] Cui, Kai[1]

第一作者：何彩云

通信作者：Zhang, JG[1]

机构：[1]Chinese Acad Forestry, Key Lab Silviculture, State Forestry Adm, Res Inst Forestry, Beijing 100091, Peoples R China;[2]Chinese Acad Forestry, Res Inst Resource Insects, Kunming 650224, Yunnan, Peoples R China

年份：2010

卷号：30

期号：11

起止页码：1383-1390

外文期刊名：TREE PHYSIOLOGY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000283688000003)】；

基金：We would like to acknowledge the support of the Special Research Program for Public-welfare Forestry of China (201004035), and Key project and Specialized Research Fund for Young Scholars of the Research Institute of Forestry, Chinese Academy of Forestry (No. ZD200911 and RIF2010-06).

语种：英文

外文关键词：adaptation; biochemical responses; natural variation; reproduction strategy

摘要：Trees growing in their natural habitat represent a valuable resource for elucidating mechanisms of adaptation to environmental constraints. Along the Erqis river, there are various Populus forests, which provide 'natural laboratories' for studying tree ecophysiological responses to their habitat. Reproduction strategies and natural variation of the 'mosaic' distributed Populus canescens patches were studied using a proteomic approach and nuclear microsatellite markers. Clonal reproduction was the primary reproduction strategy of these P. canescens patches. Forty-eight percent of the locations represented in one or two P. canescens patches were identified. In total, 83 different proteins were identified in 118 of 119 protein spots, most of them involved in metabolism. Distinct proteomes and post-translational modifications were found in different P. canescens patches. The differences in the proteomes originate both from the expression of different protein isoforms with the same function and from the differential expression of proteins with different functions, suggesting that different patches might have a functional basis for their adaptation to their environments. Our studies provide a good example of applying proteomics to measure natural variation between patches and will provide a basis for understanding how trees survive through their responses to natural conditions.