Suppr超能文献

小糠草族(禾本科:黍族:黍亚族)的分子系统发育及花序均一化的进化趋势。

Molecular phylogeny of the subtribe Melinidinae (Poaceae: Panicoideae: Paniceae) and evolutionary trends in the homogenization of inflorescences.

机构信息

Instituto de Botánica Darwinion, Labardén 200, Buenos Aires, Argentina.

出版信息

Mol Phylogenet Evol. 2010 Jul;56(1):355-69. doi: 10.1016/j.ympev.2010.02.009. Epub 2010 Feb 10.

Abstract

The subtribe Melinidinae (Poaceae: Panicoideae: Paniceae) includes 14 genera that present the PCK photosynthetic subtype in addition to several other unique and also common characters. The purpose of this research was (1) to test the monophyly of the subtribe Melinidinae, including 331 ndhF sequences of Panicoids and related genera, (2) to analyze the phylogenetic relationships among genera of Melinidinae using four cpDNA regions, and (3) to study evolutionary trends in the homogenization of inflorescences. As a result, the monophyly of Melinidinae is supported if Urochloa venosa is excluded from the subtribe. Alloteropsis semialata subsp. semialata, an unusual PCK species, is here confirmed within the Forest shade clade. Within Melinidinae, Urochloa and Eriochloa appeared as paraphyletic and polyphyletic genera, respectively. Finally, the general trend in the evolution of the inflorescences in Melinidinae seems to be the reduction from non-homogenized to complete homogenized inflorescences.

摘要

麦林亚族(禾本科:黍族:黍亚族)包括 14 个属,除了其他一些独特和常见的特征外,还具有 PCK 光合亚型。本研究的目的是:(1) 利用 Panicoids 和相关属的 331 个 ndhF 序列检验麦林亚族的单系性;(2) 利用四个 cpDNA 区分析麦林亚族属间的系统发育关系;(3) 研究花序均匀化的进化趋势。结果表明,如果将 Urochloa venosa 从亚族中排除,麦林亚族是支持的。Alloteropsis semialata subsp. semialata,一种不寻常的 PCK 物种,在这里被确认为森林遮荫枝系内的物种。在麦林亚族中,Urochloa 和 Eriochloa 分别表现为并系和多系属。最后,麦林亚族花序进化的总体趋势似乎是从非均匀化到完全均匀化花序的减少。

文献AI研究员

20分钟写一篇综述,助力文献阅读效率提升50倍。

立即体验

用中文搜PubMed

大模型驱动的PubMed中文搜索引擎

马上搜索

文档翻译

学术文献翻译模型,支持多种主流文档格式。

立即体验