利用预先确定的区域和明确的地理数据在南美洲龙舌蜥群中发现生物地理学历史(鬣蜥:龙舌蜥科)

IF 1.1 4区 生物学 Q3 ZOOLOGY Herpetological Journal Pub Date : 2020-04-01 DOI:10.33256/hj30.2.5368
M. S. Ruiz, S. Portelli, T. Hibbard, A. S. Quinteros
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引用次数: 2

摘要

Liolaemus属包括268种,分为两个亚属,Eulaemus和Liolaemussensusstricto。后者由12个单系群组成;它们中的一种是分布在南美洲的长形Liolaemus群。我们研究了L.elongatus群的生物地理学历史。我们得到了一个系统发育假说,回收了五个主要的分支:L.punmahuida、L.elongatussenso-stricto、L.kriegi、L.petophilus和L.capillitas分支。基于这个假设,我们得到了一个时间校准树。祖先范围采用三种方法进行估计:DEC、DEC+j(使用预定义区域)和GEM(使用明确的地理数据)。我们的研究结果表明,L.elongatus群的祖先区位于阿根廷中部,其分化始于11.5Mya左右。从这里开始,一系列事件(创始人事件和/或代理事件)将该物种引向了目前的分布。尽管存在差异,DEC+j和GEM显示出一致的结果。
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Discovering the biogeographic history using predefined areas and explicit geographical data in the South American Liolaemus elongatus group (Iguania: Liolaemidae)
The genus Liolaemus includes 268 species, classified in two subgenera, Eulaemus and Liolaemus sensu stricto. The latter is formed by 12 monophyletic groups; one of them being the Liolaemus elongatus group, distributed in South America. We studied the biogeographic history of the L. elongatus group. We obtained a phylogenetic hypothesis recovering five main clades: the L. punmahuida, L. elongatus sensu stricto, L. kriegi, L. petrophilus and L. capillitas clades. Based on that hypothesis we obtained a time calibrated tree. The ancestral ranges were estimated applying three methodologies: DEC, DEC+j (using predefined areas) and GEM (using explicit geographical data). Our results show that the ancestral area of the L. elongatus group was located in central Argentina, and its divergence began around 11.5 Mya. From here, a combination of events (founder events and/or vicariances) led the species to their current distribution. Despite their differences, DEC+j and GEM show congruent results.
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来源期刊
Herpetological Journal
Herpetological Journal 生物-动物学
CiteScore
2.40
自引率
10.00%
发文量
25
审稿时长
>12 weeks
期刊介绍: The Herpetological Journal is the Society''s prestigious quarterly scientific journal.
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