Phylogenetics, historical biogeography and molecular species delimitation of Chanohirata (Hemiptera: Cicadellidae: Deltocephalinae: Penthimiini)

IF 4.7 1区 农林科学 Q1 ENTOMOLOGY Systematic Entomology Pub Date : 2023-10-27 DOI:10.1111/syen.12612
Dongming Wang, Christopher H. Dietrich, Yalin Zhang
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Abstract

The genus Chanohirata Hayashi & Machida, including the herein synonymized monotypic genus Reticuluma Cheng & Li, is the second most speciose genus in the tribe Penthimiini after Penthimia Germar and is almost exclusively endemic to China. This study presents the first phylogeny of Chanohirata based on three mitochondrial markers (cytochrome c oxidase subunit I and II and 16S ribosomal RNA) and one nuclear fragment (28S ribosomal RNA). Reticuluma syn. n. is recovered nested within Chanohirata with strong support. Reticuluma is, therefore, proposed as a junior synonym of Chanohirata, and a new combination is proposed: Chanohirata citrana (Cheng & Li) comb. n. Molecular species delimitation analyses were conducted by combining six molecular delimitation methods with morphological evidence. The results of the species delimitation analyses confirm the status of eight described species of Chanohirata and support the recognition of three new species: Chanohirata cornicula Wang & Zhang sp. n., Chanohirata elongata Wang & Zhang sp. n. and Chanohirata serrata Wang & Zhang sp. n. Molecular dating and biogeographic analyses suggest that Chanohirata likely originated during the late Eocene in southern China. During the late Miocene to early Pleistocene, the uplift of the Himalayas and Tibetan Plateau and climatic oscillations probably triggered several dispersal and vicariance events in Chanohirata lineages, leading to most speciation events.

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Chanohirata 的系统发育、历史生物地理学和分子物种划分(半翅目:蝉科:Deltocephalinae:Penthimiini)
Chanohirata Hayashi & Machida属,包括在此同义的单型属Reticuluma Cheng & Li,是仅次于Penthimia Germar的Penthimiini族中物种第二多的属,几乎完全为中国特有。本研究基于三个线粒体标记(细胞色素 c 氧化酶亚单位 I 和 II 以及 16S 核糖体 RNA)和一个核片段(28S 核糖体 RNA),首次提出了 Chanohirata 的系统发生。Reticuluma syn. n. 在 Chanohirata 中的嵌套得到了有力的支持。因此,建议将 Reticuluma 作为 Chanohirata 的低级异名,并提出一个新的组合:结合六种分子定界方法和形态学证据,进行了分子物种定界分析。物种定界分析的结果确认了 8 个已描述的 Chanohirata 种的地位,并支持确认 3 个新种:分子年代学和生物地理学分析表明,Chanohirata 很可能起源于中国南方的始新世晚期。在中新世晚期至更新世早期,喜马拉雅山和青藏高原的隆起以及气候振荡可能引发了Chanohirata种系的多次扩散和沧海桑田事件,导致了大多数物种的分化。
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来源期刊
Systematic Entomology
Systematic Entomology 生物-进化生物学
CiteScore
10.50
自引率
8.30%
发文量
49
审稿时长
>12 weeks
期刊介绍: Systematic Entomology publishes original papers on insect systematics, phylogenetics and integrative taxonomy, with a preference for general interest papers of broad biological, evolutionary or zoogeographical relevance.
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