学术
卧龙圈养大熊猫遗传多样性现状及预测
艳丽[1,2] 黄炎[3] 张保卫[1,2] 张陕宁[1,2] 张和民[3] 魏辅文[1] 王鹏彦[3] 李明[1]
[1]中国科学院动物研究所、中国科学院动物生态与保护生物学重点实验室,北京100080 [2]中国科学院研究生院,北京100049 [3]中国保护大熊猫研究中心,汶川623006
摘 要:
以中国最大的大熊猫圈养种群——四川卧龙中国大熊猫保护中心的圈养种群为对象，以8个大熊猫微卫星位点为分子标记，探讨了大熊猫圈养种群的遗传多样性，并与邛崃野生种群及其他7个濒危物种进行比较。微卫星数据表明，圈养种群的遗传多样性水平（A=5．5，He=0．620，Ho=0．574）低于邛崃野生种群（A=9．8，He=0．779，Ho=0．581），但高于其他7个濒危物种的种群（He=0．13-0．46）。在此数据的基础上对未来100个世代内圈养种群遗传多样性的变化情况做出了预测。结果表明假设种群数量比现在扩大一倍，经历100个世代后也只会使平均等位基因数少减少0．4。因此继续增加野生个体对保持遗传多样性的意义已经不大，建议该圈养种群的保护策略应将重点放到制定更有效的繁殖计划以避免近交上。[著者文摘]
文章出处:
《兽类学报》-2006年26卷4期 -317-324页
栏目信息:
分 类 号:
文献标识码:
A
文章编号:
1000-1050（2006）04-0317-08
Status and prognosis of genetic diversity in captive giant pandas （Ailuropoda melanoleuca ） in Wolong
YAN Li, HUANG Yah, ZHANG Baowei, ZHANG Shanning, ZHANG Heroin, WEI Fuwen, WANG Pengyan, LIMing （ 1 Key laboratory of Animal Ecology and Conservation, Institute of Zoology, the Chinese Academy ofScienees, Beijing, 100080, China; 2 Graduate School of Chinese Academy of Seiences, Beijing, 100049, China; 3 China Research and Conservation Center for the Giant Panda, Wenchuan, 623006, China ）
Abstract:
The evolutionary potential of a species is determined by its genetic diversity. Thus, management plans should integrate genetic concerns into active conservation efforts. The giant panda （Ailuropoda melanoleuca） is an endangered species, endemic to China. Previous studies have focused primarily on genetic diversity among wild giant pandas. We compared genetic diversity of captive with wild giant pandas by obtaining 27 blood samples from pandas held at the China Research and Conservation Center for the Giant Pandas with 39 samples （feces and skin） collected from the wild. We quantified genetic diversity in each sample using 8 microsatellite loci. Genetic diversity of captive pandas was lower （ A = 5.5, He = 0. 620, 11o = 0. 574） than in wild pandas （ A = 9. 8, He = 0. 779, Ho = 0. 581 ） , but was higher than that of other 7 endangered species （He = 0. 13 -0.46）. Simulations showed that the average number of alleles would increase by only 0.4 within 100 generations with a doubling of population size. Thus, we suggest that the management strategy for the captive giant panda population should develop effective reproductive plans so as to avoid inbreeding.[著者文摘]
Key words:
Captive population; Giant panda （Ailuropoda melanoleuca） ; Genetic diversity
基金资助:
国家林业局国际合作项目
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