What happened to the genus Gammarus (Crustacea: Amphipoda) in Central Asia
What happened to the genus Gammarus (Crustacea: Amphipoda) in Central Asia
复制标题
中亚的钩虾属（甲壳纲：片脚类）发生了什么
DOI：
10.14720/abs.62.2.15754
复制
发表时间：
2019-12
期刊：
影响因子：
--
通讯作者：
Zhonge Hou
中科院分区：
文献类型：
--
作者：
B. Sket;D. Sidorov;Zhonge Hou
我们研究了中亚双足类动物Gammarus的系统发育关系，试图解释其原因。线粒体DNA序列数据用于MP和ML和贝叶斯分析，以产生系统发育假设。除balcanicus和komareki两种G.聚集体的少数边缘种群外，最近采集到的Gammarus spp.标本均属于G. lakustris聚集体。虽然分子关系密切，但这些。湖栖植物；种群的形态和生态多样性与众多的欧洲Gammarus一样，只有少数种群在形态上接近于G. laustris的形态类型。东、西部种群之间有2000多公里的差距。由于Gammarus lakustris可以通过鸟类传播，其亚洲近亲在分子上具有显著的多样性，我们认为它曾多次从不同的来源入侵中亚。它很可能在到达亚洲后分化成多种形态。只有通过水路才能到达和征服嗜冷和较少游牧的巴尔卡尼卡斯。其面积在过去可能是连续的，在新近纪被干旱化所划分。强烈的历史干旱化可能使中亚地区可能较高的Gammarus多样性灭绝，包括G. balcanicus。这为泛异种的湖栖g.l ustris s.l.的反复入侵打开了该地区及其栖息地，随后其形态和生态多样化。
We examined the phylogenetic relationships in the unusually structured fauna of the amphipod genus Gammarus in Central Asia, trying to explain its causes. Mitochondrial DNA sequence data were used in MP and ML and Bayesian analyses to generate a phylogenetic hypothesis. All of the recently collected Gammarus spp. specimens belong to the G. lacustris aggregate, except scarce marginal populations of G. balcanicus and G. komareki aggregates. Although molecularly closely related, these. G. lacustris agg. populations are morphologically and ecologically equally diverse as are the numerous European Gammarus spp. Only few populations are morphologically close to the morphotype of G. lacustris. There is a more than 2,000 km wide gap between the eastern and western populations-species of G. balcanicus agg. Since Gammarus lacustris can be spread by birds, and its Asian relatives are molecularly significantly diverse, we suppose that it invaded Central Asia several times and from several sources. It most probably differentiated to diverse morphotypes after reaching Asia. The area of the cryophilic and less nomadic G. balcanicus could have been reached and conquered only by waterways. Its area was probably continuous in the past and divided by aridification during the Neogene. The strong historical aridifications probably extirpated the probably higher Gammarus diversity in Central Asia, including G. balcanicus. This opened the area and its habitats for the reiterated invasions of the particularly euryoecious G. lacustris s.l., followed by its morphological and ecological diversification.
登录
查看更多内容
始新世栖息地从盐水到淡水的转变促进了特提斯片脚类动物的多样化
DOI：
10.1073/pnas.1104636108
发表时间：
2011-08-30
影响因子：
11.1
作者：
Hou, Zhonge;Sket, Boris;Li, Shuqiang
通讯作者：
Li, Shuqiang
DOI：
10.1163/26660644-04702003
发表时间：
1977-01-01
期刊：
BIJDRAGEN TOT DE DIERKUNDE
影响因子：
--
作者：
KARAMAN, GS;PINKSTER, S
通讯作者：
PINKSTER, S
影响因子：
2.9
作者：
Caves, Jeremy K.;Sjostrom, Derek J.;Chamberlain, C. Page
通讯作者：
Chamberlain, C. Page
影响因子：
4.1
作者：
Macdonald, KS;Yampolsky, L;Duffy, JE
通讯作者：
Duffy, JE
影响因子：
0.9
作者：
D. Sidorov;Z. Hou;B. Šket
通讯作者：
D. Sidorov;Z. Hou;B. Šket