Clonal Structure and Clonal Diversity of Populus alba along the Erqis River

ZHENG Shu-xing; ZHANG Jian-guo; DUAN Ai-guo; HE Cai-yun; BAO Er-jiang; WANG Jian

The populations of Populus alba present a independently distributing pattern of male or female patch. To realize the form reason and distributing mode, we selected 12 microsatellite primers to study the clonal structure and clonal diversity of Populus alba base on two sampling strategy. The result showed that: (1) all swatches in a single distributing patch of male or female were a identical clone, the single patch had only one genet; (2) we differentiated 53 genotypes(genet) among the 90 plants sampled of all patches. The populations of Populus alba had an abundant clonal diversity and the mean Simpson’s index was 0.983, and mean PD was 0.589. The progeny of Populus alba was reproduced by root clone. The high clonal diversity might be maintained if the populations were initially founded by multiple genets that differed genetically and the existent frond was the progeny of clonal genets.

1. Research Institute of Forestry, Chinese Academy of Forestry, State Key Laboratory of Tree Genetics and Breeding, Key Laboratory of Breeding and Cultivation, State Forestry Administration, Beijing 100091, China

2. Research Institute of Resource Insects, Chinese Academy of Forestry, Kunming 650224, Yunnan, China

3. Aletai Research Institute of Forestry, Aletai 836500, Xinjiang, China

Received Date: 2009-06-09

Accepted Date: 2013-03-10

Abstract: The populations of Populus alba present a independently distributing pattern of male or female patch. To realize the form reason and distributing mode, we selected 12 microsatellite primers to study the clonal structure and clonal diversity of Populus alba base on two sampling strategy. The result showed that: (1) all swatches in a single distributing patch of male or female were a identical clone, the single patch had only one genet; (2) we differentiated 53 genotypes(genet) among the 90 plants sampled of all patches. The populations of Populus alba had an abundant clonal diversity and the mean Simpson’s index was 0.983, and mean PD was 0.589. The progeny of Populus alba was reproduced by root clone. The high clonal diversity might be maintained if the populations were initially founded by multiple genets that differed genetically and the existent frond was the progeny of clonal genets.

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Reference (20)

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Clonal Structure and Clonal Diversity of Populus alba along the Erqis River

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