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Evolution between forest macrorefugia is linked to discordance between genetic and morphological variation in Neotropical passerines.
Molecular Phylogenetics and Evolution ( IF 3.6 ) Pub Date : 2020-05-06 , DOI: 10.1016/j.ympev.2020.106849 Natalia Trujillo-Arias 1 , María José Rodríguez-Cajarville 2 , Eloisa Sari 3 , Cristina Y Miyaki 4 , Fabricio R Santos 3 , Christopher C Witt 5 , Ana S Barreira 2 , Isabel Gómez 6 , Kazuya Naoki 7 , Pablo L Tubaro 2 , Gustavo S Cabanne 2
Molecular Phylogenetics and Evolution ( IF 3.6 ) Pub Date : 2020-05-06 , DOI: 10.1016/j.ympev.2020.106849 Natalia Trujillo-Arias 1 , María José Rodríguez-Cajarville 2 , Eloisa Sari 3 , Cristina Y Miyaki 4 , Fabricio R Santos 3 , Christopher C Witt 5 , Ana S Barreira 2 , Isabel Gómez 6 , Kazuya Naoki 7 , Pablo L Tubaro 2 , Gustavo S Cabanne 2
Affiliation
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The central Andean rainforests and the Atlantic Forest are two similar biomes that are fully isolated by xerophytic and open-vegetation regions (the Chaco and Cerrado, respectively). Even though there is evidence suggesting that these rainforests have been connected in the past, their dynamics of connection, the geographic areas that bridged these regions, and the biological processes that have promoted diversification between them remain to be studied. In this research, we used three passerine species (Poecilotriccus plumbeiceps, Phylloscartes ventralis and Cacicus chrysopterus) as models to address whether the Andean and the Atlantic forests have acted as a refugia system (macrorefugia), and to evaluate biogeographic hypotheses of diversification and connection between them. In order to achieve these goals, we performed traditional phylogeographic analyses and compared alternative biogeographic scenarios by using Approximate Bayesian Computation. Additionally, we performed morphological analyses to evaluate phenotypic divergence between these regions. Our findings support that both rainforest regions acted as refugia, but that the impact of their isolation was stronger on the genetic than on the morphologic characters. Our results provided evidence that both geographic isolation as well as ecological factors have modeled the external traits of forest organisms in the region. Regarding the connection routes between the Andes and the Atlantic Forest, the genetic data rejected the hypothesis of a Chaco connection in the tested species, providing evidence for a connection through the Cerrado or through the transition between the Cerrado and Chaco, in a process that could have started as early as the Late Miocene.
中文翻译：
森林宏观改良之间的进化与新热带雀形目的遗传和形态变异之间的不一致有关。
安第斯山脉中部的雨林和大西洋森林是两个相似的生物群落，被旱生植物区和开放植被区（分别为查科和塞拉多）完全隔离。尽管有证据表明这些雨林在过去是相互联系的，但它们之间的联系动态，连接这些地区的地理区域以及促进它们之间的多样化的生物过程仍有待研究。在这项研究中，我们使用了三种雀形目物种（Poecilotriccus plumbeiceps，Phylloscartes ventralis和Cacicus chrysopterus）作为模型，以研究安第斯和大西洋森林是否已成为避难所系统（macrorefugia），并评估了生物地理学假设的多样性以及两者之间的联系。他们。为了实现这些目标，我们进行了传统的地理学分析，并通过近似贝叶斯计算比较了其他生物地理情况。此外，我们进行了形态分析，以评估这些区域之间的表型差异。我们的发现支持两个热带雨林地区都充当避难所，但是它们的隔离对遗传的影响大于对形态特征的影响。我们的结果提供了证据，表明地理隔离和生态因素都已对该地区森林生物的外部特征进行了建模。关于安第斯山脉和大西洋森林之间的联系路线，遗传数据拒绝了被测物种中查科联系的假设，为通过塞拉多或塞拉多和查科之间的过渡提供了联系，
更新日期：2020-05-06
中文翻译：
森林宏观改良之间的进化与新热带雀形目的遗传和形态变异之间的不一致有关。
安第斯山脉中部的雨林和大西洋森林是两个相似的生物群落，被旱生植物区和开放植被区（分别为查科和塞拉多）完全隔离。尽管有证据表明这些雨林在过去是相互联系的，但它们之间的联系动态，连接这些地区的地理区域以及促进它们之间的多样化的生物过程仍有待研究。在这项研究中，我们使用了三种雀形目物种（Poecilotriccus plumbeiceps，Phylloscartes ventralis和Cacicus chrysopterus）作为模型，以研究安第斯和大西洋森林是否已成为避难所系统（macrorefugia），并评估了生物地理学假设的多样性以及两者之间的联系。他们。为了实现这些目标，我们进行了传统的地理学分析，并通过近似贝叶斯计算比较了其他生物地理情况。此外，我们进行了形态分析，以评估这些区域之间的表型差异。我们的发现支持两个热带雨林地区都充当避难所，但是它们的隔离对遗传的影响大于对形态特征的影响。我们的结果提供了证据，表明地理隔离和生态因素都已对该地区森林生物的外部特征进行了建模。关于安第斯山脉和大西洋森林之间的联系路线，遗传数据拒绝了被测物种中查科联系的假设，为通过塞拉多或塞拉多和查科之间的过渡提供了联系，
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