标题弯曲虹膜(缅甸科)的修订，新组合和新种描述

IF 0.9 3区生物学 Q4 EVOLUTIONARY BIOLOGY

Systematic Botany Pub Date : 2023-10-23 DOI:10.1600/036364423x16936046516345

Xiaojuan Li, Lu Qu, Guoxiong Hu, Dianxiang Zhang

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引用次数: 0

摘要

摘要:Campylosiphon (Burmanniaceae)是一个分布在南美洲和西非热带地区的两个完全分枝异养的属，扩展到包括两个亚洲种和一个非洲种，具有“无翅”花。其中，Burmannia championii和B. densiflora被转移到弯曲虹吸管中，并在形态比较和分子系统发育推断的结合下，描述了中国贵州的一个科学新种弯曲虹吸管。我们发现弯曲虹吸管属可以通过五个形态学方面来表征。随着这一修订的范围，弯曲虹膜成为缅甸科的第三属，具有泛热带分布模式。我们还报道了两种弯曲虹吸物种具有高级降解的质体，失去了光合作用的所有蛋白质编码基因。

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Revision of Campylosiphon (Burmanniaceae), with New Combinations and a New Species Described

Abstract— Campylosiphon (Burmanniaceae), a genus with two fully mycoheterotrophic species distributed in the tropics of South America and West Africa, is extended to include two Asian species and one African species with “wingless” flowers. Specifically, Burmannia championii and B. densiflora are transferred to Campylosiphon , and a Campylosiphon species new to science is described from Guizhou, China, supported by a combination of morphological comparison and molecular phylogenetic inference. We reveal that the genus Campylosiphon can be characterized by five morphological aspects. With this revised circumscription, Campylosiphon becomes the third genus in Burmanniaceae with a pantropical distribution pattern. We also report that two Campylosiphon species have advanced degraded plastomes, losing all protein coding genes for photosynthesis.

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来源期刊

Systematic Botany 生物-进化生物学

CiteScore

1.80

自引率

10.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Systematic Botany Monographs is a series of peer-reviewed taxonomic monographs and revisions published the American Society of Plant Taxonomists. ISSN 0737-8211, ISBN prefix 978-0-912861. No; volumes of Systematic Botany Monographs must be ordered separately. ASPT membership inludes only a subscription to the quarterly journal Systematic Botany. SBM is supported by sales, author"s subsidies, and donations.