基于核基因位点和叶绿体基因位点的小檗目植物系统发育,并描述智利中部特有的一个小檗新种

IF 3 2区 生物学 Q2 EVOLUTIONARY BIOLOGY
Taxon Pub Date : 2024-04-04 DOI:10.1002/tax.13170
Kora Menegoz, Alejandro E. Villarroel, Nicolás Lavandero
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引用次数: 0

摘要

小檗科包括两个科:单型的 Aextoxicaceae(智利和阿根廷的 Aextoxicon punctatum)和 Berberidopsidaceae。后者包括澳大利亚的单型 Streptothamnus(S. moorei)和 Berberidopsis(澳大利亚的 B. beckleri 和智利的 B. corallina)。本文描述了一个来自智利安第斯山脉中部的 Berberidopsis 新种。基于核和叶绿体数据的系统发育分析明确了拟小檗属(Berberidopsidales)内部的关系。新种 Berberidopsis granitica 是智利特有种 B. corallina 的姊妹种,该支系与澳大利亚的 B. beckleri 是姊妹支系。根据分子系统发育的年代,南美洲B. corallina和B. granitica之间的分裂发生在中新世晚期/更新世早期,而南美洲和澳大利亚Berberidopsis之间的分裂发生在中新世晚期和上新世,这表明它们是越洋扩散而不是沧海桑田。气候生态位分析表明,澳大利亚和南美洲南部的物种有两个不同的、不重叠的气候生态位。Berberidopsis granitica和B. corallina除了气候生态位不同外,在栖息地和形态上也有明显差异。Berberidopsis granitica 的分布区域非常有限,生长在安第斯山脉的山地气候条件下,在 Berberidopsidales 中独一无二。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Phylogeny of Berberidopsidales based on nuclear and chloroplast loci, with the description of a new species of Berberidopsis endemic to Central Chile
Berberidopsidales comprises two families: monotypic Aextoxicaceae (Aextoxicon punctatum in Chile and Argentina) and Berberidopsidaceae. The latter includes Australian monotypic Streptothamnus (S. moorei) and Berberidopsis (B. beckleri in Australia and B. corallina in Chile). A new Berberidopsis species from the Central Chilean Andes is here described. Phylogenetic analyses based on nuclear and chloroplast data clarified the relationships within Berberidopsidales. The new species, Berberidopsis granitica, is sister to the Chilean endemic B. corallina, and this clade is sister to the Australian B. beckleri. The dated molecular phylogeny places the split between the South American B. corallina and B. granitica into the late Miocene/early Pleistocene and the split between South American and Australian Berberidopsis to the late Miocene and Pliocene, suggesting transoceanic dispersal rather than vicariance. Climatic niche analyses show two distinct and non‐overlapping climatic niches for the Australian and southern South American species. Berberidopsis granitica and B. corallina also differ clearly in their habitat and morphology, in addition to their climatic niche. Berberidopsis granitica has a very restricted distribution area and grows in the Andes under montane climatic conditions, unique within Berberidopsidales.
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来源期刊
Taxon
Taxon 生物-进化生物学
CiteScore
4.70
自引率
8.80%
发文量
177
审稿时长
6-12 weeks
期刊介绍: TAXON is the bi-monthly journal of the International Association for Plant Taxonomy and is devoted to systematic and evolutionary biology with emphasis on plants and fungi. It is published bimonthly by the International Bureau for Plant Taxonomy and Nomenclature, c/o Institute of Botany, Slovak Academy of Sciences, Dúbravská cesta 9, SK-845 23 Bratislava, SLOVAKIA. Details of page charges are given in the Guidelines for authors. Papers will be reviewed by at least two specialists.
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