Amplified fragment length polymorphism analysis of the population structure and genetic diversity of Phoebe zhennan (Lauraceae), a native species to China

被引：22
作者：
Gao, Jihai [1 ]
Zhang, Wei [2 ]
Li, Jiayong [2 ]
Long, Hanli [2 ]
He, Wei [2 ]
Li, Xiaoqing [2 ]
机构：
[1] Chengdu Univ Tradit Chinese Med, Key Lab Systemat Res Dev & Utilizat Chinese Med R, Key Lab Breeding Base Cofounded Sichuan Prov & MO, Pharm Coll,Minist Educ,Key Lab Standardizat Chine, Chengdu 611137, Peoples R China
[2] Sichuan Acad Forestry Sci, Chengdu 610068, Peoples R China
来源：
BIOCHEMICAL SYSTEMATICS AND ECOLOGY | 2016年 / 64卷
关键词：
AFLP; Genetic diversity; Phoebe zhennan; Population structure; NUMERICAL TAXONOMY; AFLP MARKERS; CONSERVATION; DNA;
D O I：
10.1016/j.bse.2015.11.001
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Phoebe zhennan S. Lee et F. N. Wei (Lauraceae), is the main source of Gold Phoebe, a rare and extremely valuable wood in China. However it has undergone a dramatic decline. In this study, we used 12 amplified fragment length polymorphism primer combinations to assay 92 accessions, which were highly representative of the entire P. zhennan germplasm. It revealed that P. zhennan consisted of three genetic populations, named as SCZ (central Sichuan), CQH (eastern Sichuan, Chongqin, Hubei and Hunan) and YG (Yunnan and Guizhou), probably owing to natural selection caused by topography differences. The CQH population further diverged into two geographical sub-populations: CD-CQ(SCD and west region of Chongqin) and HB-HN (eastern side of Chongqin, Hubei and Hunan). The loci were moderately polymorphic (40.4%). The genetic distance between SCZ and YG was the highest, between CD-CQ and HB-HN the lowest. Pairwise fixation indices (Phi(PT)) between any inferred populations were significant. This rare species exhibited low genetic diversity; therefore, the results provided significant data related to the conservation and management of P. zhennan. That is, with this genetic information, land managers are equipped with better tools allowing them to more effectively protect this species and its limited genetic diversity. (C) 2015 Elsevier Ltd. All rights reserved.
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页码：149 / 155
页数：7
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