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Understanding the diversification and functional radiation of Aporrectodea (Crassiclitellata, Lumbricidae) through molecular phylogenetics of its endemic species
European Journal of Soil Biology ( IF 4.2 ) Pub Date : 2023-09-28 , DOI: 10.1016/j.ejsobi.2023.103559
Daniel Fernández Marchán , Alejandro Martínez Navarro , Sergio Jiménez Pinadero , Sylvain Gerard , Mickaël Hedde , Jorge Domínguez , Thibaud Decaëns , Marta Novo

The genus Aporrectodea includes some of the most conspicuous earthworm species, but its taxonomic history is among the most complex within the family Lumbricidae. Molecular phylogenetic studies have produced some advances by assigning former Aporrectodea species to other monophyletic clades and by detecting species level lineages within the cosmopolitan caliginosa-trapezoides complex. However, little attention has been devoted to endemic taxa of Aporrectodea such as Ap. rubra, Ap. arverna, Ap. gogna, Ap. balisa, Ap. velox, Ap. giardi voconca and Ap. longa ripicola. These earthworms (and additional populations of Ap. longa and Ap. nocturna) were included in a molecular phylogenetic framework in order to reconstruct the ancestral range of the genus, as well as to help understand its diversification within its native range and to perform a systematic revision. Species delimitation, ancestral area reconstruction and Bayesian inference of the phylogenetic relationships were performed using a large gene sequence (COI) dataset and a narrower dataset composed of 5 mitochondrial and nuclear markers. Phylogenetic position and species delimitation indicated that Ap. giardi voconca and Ap. longa ripicola constitute species-level entities not closely related to Ap. giardi or Ap. longa, and they were thus redescribed as Aporrectodea voconca stat. nov. and Aporrectodea ripicola stat. nov. Ancestral area reconstruction enabled location of the origin of Aporrectodea in the Auvergne-Rhône-Alps, in Southeastern France. The study findings provide some insight into the evolution of functional traits in this ecologically successful genus. Ap. rubra and Ap. arverna (small, reddish, epigeic/epianecic) and Ap. gogna (very large, dark, anecic) were recovered as the earliest branching taxa, suggesting a complex evolution of functional traits within this genus.



中文翻译:

通过其特有物种的分子系统发育了解Aporectodea(Crassiclitellata,Lumbricidae)的多样化和功能辐射

Aporectodea属包括一些最引人注目的蚯蚓物种,但其分类历史是蚓科中最复杂的。分子系统发育研究通过将前Aporectodea物种分配到其他单系进化枝以及检测世界性caliginosa - trapezoides复合体内的物种水平谱系,取得了一些进展。然而,很少有人关注Aporectodea特有类群。鲁布拉Ap阿维尔纳Ap戈尼亚Ap . 巴利萨应用程序维洛克,Ap。贾迪·沃孔卡Ap龙加里皮科拉这些蚯蚓(以及Ap. longaAp. nocturna的其他种群)被纳入分子系统发育框架中,以重建该属的祖先范围并帮助了解其在原生范围内的多样性并进行系统研究。修订。使用大型基因序列 (COI) 数据集和由 5 个线粒体和核标记组成的较小数据集进行物种定界、祖先区域重建和系统发育关系的贝叶斯推断。系统发育位置和物种定界表明应用程序贾迪·沃孔卡Aplonga ripicola构成与 Ap 不密切相关的物种级实体。贾迪Ap。longa,因此它们被重新描述为Aporectodea voconca stat。十一月 和Aporectodea ripicola统计。十一月 祖先区域的重建使得Aporretodea的起源位于法国东南部的奥弗涅-罗纳-阿尔卑斯山地区。研究结果为这个生态上成功的属的功能性状的进化提供了一些见解。应用程序。rubraAp。arverna(小,微红,epigeic/epianecic)和Ap。戈尼亚(非常大,深色,无色)作为最早的分支类群被恢复,表明该属内功能性状的复杂进化。

更新日期:2023-09-28
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