Morphological, molecular and biogeographic evidence supporting two new species in the Uroptychus naso complex, Crustacea: Decapoda: Chirostylidae (CERF Marine Biodiversity Hub Project)

Molecular phylogenies and morphological description of specimens were involved to delineate cryptic species within the Uroptychus naso species complex (Chirostylidae) and reconstruct their phylogeneographic relationships in the light of subrecent geological events. Specimens were collected throughout the known distribution range of the species: north-western Australia, and Indo-Pacific Ocean (Philippines, Taiwan, Korea and Japan).Molecular markers involved were the mitochondrial COI and 16S regions and the nuclear H3 histonic gene. GenBank Accession numbers were assigned for the newly produced DNA sequences. To elucidate cryptic speciation events within this species and to identify potential large scale geological events responsible for the speciation. This research is part of the CERF Project. Further papers will be produced following analyses of additional material at species, genus and family levels involving the same geographical region.

本研究通过分子系统发育分析与标本形态学描述，对鼻形绒螯寄居蟹（Uroptychus naso）物种复合体（瓷寄居蟹科Chirostylidae）内的隐存物种进行界定，并基于亚近代地质事件背景重建其系统地理关系。研究标本采自该类群的已知分布范围：澳大利亚西北部及印度-太平洋海域（菲律宾、中国台湾、韩国与日本）。本研究采用的分子标记包括线粒体COI基因区域、16S rRNA基因区域以及核组蛋白H3基因。新获得的DNA序列已获取GenBank登录号。本研究旨在阐明该类群内的隐存物种形成事件，并明确驱动物种形成的潜在大规模地质事件。本研究隶属于CERF项目。后续将针对同一地理区域内物种、属及科级阶元的补充标本开展相关分析，并发表系列研究成果。