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When phylogeography meets niche suitability to unravel the evolutionary history of a shrub from the Brazilian Atlantic Forest
Botanical Journal of the Linnean Society ( IF 2.4 ) Pub Date : 2020-09-03 , DOI: 10.1093/botlinnean/boaa073
Geraldo Mäder 1 , Priscilla M Zamberlan 1 , Ana Lucia A Segatto 1 , João R Stehmann 2 , Sandro L Bonatto 3 , Loreta B Freitas 1
Affiliation  

The Brazilian Atlantic Forest (BAF) is one of the most impacted biomes in the world, and in this region, there are several examples of the effects of Pleistocene climate changes among the species found there. Athenaea fasciculata (Solanaceae) is a forest component distributed mainly throughout the BAF extension. Here, we investigated the genetic diversity and population structure of A. fasciculata based on plastid and nuclear markers, aiming to better understand the impact of Pleistocene climate changes on BAF vegetation. We used population genetics, demographic methods and ecological niche modelling coupled to an evolutionary approach to describe the species distribution across time. The phylogeographic analysis of A. fasciculata indicated that Pleistocene climate changes played an important role in its evolution. The species is structured in two groups of populations that emerged from different refugia and were under different climate influences, supporting previously proposed connections between the Atlantic and Amazon Forests, the two most important Neotropical rainforests.

中文翻译:

当系统地理学遇到合适的环境时,便可以揭示巴西大西洋森林灌木的进化历史

巴西大西洋森林(BAF)是世界上受影响最严重的生物群落之一,在该地区,有几个实例表明那里的物种具有更新世气候变化的影响。Athenaea fasciculata(茄科)是一种森林成分,主要分布在整个BAF扩展中。在这里,我们基于质体和核标记物调查了A. fasciculata的遗传多样性和种群结构,旨在更好地了解更新世气候变化对BAF植被的影响。我们使用种群遗传学,人口统计学方法和生态位建模,再结合进化方法来描述物种随时间的分布。菇的系统地理分析指出更新世气候变化在其演化中起着重要作用。该物种分为两类,分别来自不同的避难所,并受到不同的气候影响,这支持了先前提议的两个最重要的新热带雨林大西洋和亚马逊森林之间的联系。
更新日期:2020-09-10
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