Ecological and geographic modes of species divergence in wild tomatoes
作者： Takuya Nakazato , Dan L. Warren , Leonie C. Moyle
DOI: 10.3732/AJB.0900216
关键词: Biology 、 Niche differentiation 、 Allopatric speciation 、 Species distribution 、 Context (language use) 、 Ecology 、 Sympatric speciation 、 Clade 、 Speciation 、 Ecological niche
摘要: Understanding the role of geography and ecology in species divergence is central to study evolutionary diversifi cation. We used climatic, geographic, biological data from nine wild Andean tomato describe each ’ ecological niche evaluate likely geographical modes speciation this clade. Using > 1000 accessions publicly available derived geographic information systems for various environmental variables, we found most pairs were signifi cantly differentiated one or more variables. By comparing predicted niches generated by distribution modeling (SDM), cant differentiation among three four sisterspecies pairs, suggesting consistently associated with recent divergence. In comparison, based on agerange correlation (ARC) analysis, there was no evidence a predominant (allopatric vs. sympatric) context group. Overall, our results suggest an important environmentally mediated differentiation, rather than simply isolation,
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