Moderate Genetic Diversity and Demographic Reduction in the Threatened Giant Anteater, Myrmecophaga tridactyla.

Moderate Genetic Diversity and Demographic Reduction in the Threatened Giant Anteater, Myrmecophaga tridactyla.
复制标题

DOI:
10.3389/fgene.2021.669350
复制
发表时间:
2021
影响因子:
3.7
通讯作者:
Galetti PM Jr
Galetti PM Jr
中科院分区:
生物学3区
文献类型:
--
作者:
Barragán-Ruiz CE;Silva-Santos R;Saranholi BH;Desbiez ALJ;Galetti PM Jr

文献摘要

参考文献

相似文献

一般来说,具有高度专门化的摄食行为和独居习惯的大型哺乳动物物种预计将遭受栖息地丧失和破碎化的遗传后果。为了验证这一假设,我们分析了栖息在人类改造景观中的受威胁的大食蚁兽的遗传多样性分布。我们使用了10个微卫星位点,以评估在巴西中西部地区采样的107个巨型食蚁兽的遗传多样性和种群结构。没有观察到遗传种群结构在该地区没有基因流的限制,在研究区域内。另一方面,中等水平的遗传多样性(Ho = 0.54),最近检测到的瓶颈和近亲繁殖(Fis,0.13; p ≤ 0.001)的签名表明,该异节龙的遗传变异的潜在影响。此外,还建议之前进行人口减少。因此,考虑到人类对整个大食蚁兽分布区域的影响增加,我们的研究结果可以说明这些干扰对遗传变异的潜在影响,使我们能够要求长期保护这个标志性物种。
In general, large mammal species with highly specialized feeding behavior and solitary habits are expected to suffer genetic consequences from habitat loss and fragmentation. To test this hypothesis, we analyzed the genetic diversity distribution of the threatened giant anteater inhabiting a human-modified landscape. We used 10 microsatellite loci to assess the genetic diversity and population structure of 107 giant anteaters sampled in the Brazilian Central-Western region. No genetic population structuring was observed in this region suggesting no gene flow restriction within the studied area. On the other hand, the moderate level of genetic diversity (Ho = 0.54), recent bottleneck detected and inbreeding (Fis, 0.13; p ≤ 0.001) signatures suggest potential impacts on the genetic variation of this Xenarthra. Additionally, a previous demographic reduction was suggested. Thus, considering the increased human-promoted impacts across the entire area of distribution of the giant anteater, our results can illustrate the potential effects of these disturbances on the genetic variation, allowing us to request the long-term conservation of this emblematic species.
DOI: 10.1111/mec.13139
发表时间: 2015-06-01
期刊: MOLECULAR ECOLOGY
影响因子: 4.9
作者:
Frankham, Richard
通讯作者: Frankham, Richard
DOI: 10.1111/j.1471-8286.2005.01031.x
发表时间: 2005-09-01
期刊: MOLECULAR ECOLOGY NOTES
影响因子: --
作者:
Guillot, G;Mortier, F;Estoup, A
通讯作者: Estoup, A
DOI: 10.1093/bioinformatics/btt763
发表时间: 2014-04-15
期刊: BIOINFORMATICS
影响因子: 5.8
作者:
Cornuet, Jean-Marie;Pudlo, Pierre;Estoup, Arnaud
通讯作者: Estoup, Arnaud
DOI: 10.1186/1471-2105-11-401
发表时间: 2010-07-28
期刊: BMC bioinformatics
影响因子: 3
作者:
Cornuet JM;Ravigné V;Estoup A
通讯作者: Estoup A
DOI: 10.1046/j.1365-294x.2001.01190.x
发表时间: 2001-02-01
期刊: MOLECULAR ECOLOGY
影响因子: 4.9
作者:
Garza, JC;Williamson, EG
通讯作者: Williamson, EG