Dataset Information

The Recognition and Molecular Phylogeny of Mugilogobius mertoni Complex (Teleostei: Gobiidae), with Description of a New Cryptic Species of M. flavomaculatus from Taiwan.

ABSTRACT: Shih-Pin Huang, I-Shiung Chen, Mana M. N. Yung, and Kwang-Tsao Shao (2016) Mugilogobius mertoni (Weber, 1911) is considered as a widely distributed species around the Indo- West Pacific region, and several nominal species are considered as junior synonyms of M. mertoni. However, in our recent study, several different morphological types of M. mertoni were observed, they were collected from Taiwan, Palau and Phuket Island. This study aimed to investigate the taxonomic status of those M. mertoni-like individuals, we also attempted to assess their phylogenetic relationship base on combined mitochondrial DNA ND5, Cyt b and D-loop sequences. The present morphological and molecular evidences suggested that the current M. mertoni could be regarded as a species complex, and several cryptic species might be included in M. mertoni complex. One of these which collected from Taiwan is described as a new species, Mugilogobius flavomaculatus n. sp. based on both morphological and molecular evidence in this study. The phylogenetic tree also revealed that M. flavomaculatus n. sp. is the closest to M. mertoni. M. flavomaculatus n. sp. and its sister species M. mertoni are found to have different niches in the same estuary. Moreover, stable morphological characters and nuclear gene RAG2 also clearly show that no hybridization is detected in between M. flavomaculatus n. sp. and M. mertoni. Except the present new species, taxonomic status of all junior synonyms refers to M. mertoni are also discussed.

SUBMITTER: Huang SP

PROVIDER: S-EPMC6511902 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature

ACCESS DATA

Publications

The Recognition and Molecular Phylogeny of Mugilogobius mertoni Complex (Teleostei: Gobiidae), with Description of a New Cryptic Species of M. flavomaculatus from Taiwan.

Huang Shih-Pin SP Chen I-Shiung IS Yung Mana M N MMN Shao Kwang-Tsao KT

Zoological studies 20160810

Shih-Pin Huang, I-Shiung Chen, Mana M. N. Yung, and Kwang-Tsao Shao (2016) Mugilogobius mertoni (Weber, 1911) is considered as a widely distributed species around the Indo- West Pacific region, and several nominal species are considered as junior synonyms of M. mertoni. However, in our recent study, several different morphological types of M. mertoni were observed, they were collected from Taiwan, Palau and Phuket Island. This study aimed to investigate the taxonomic ...[more]

PMID: 31966184

Similar Datasets

Project description:IntroductionThe genus Dinobryon is one of the most recognizable chrysophyte genera, characterized by dendroid colonies with a biflagellate inside each cellulosic lorica. The representative forms of lorica are cylindrical, conical, vase, or funnel shaped, with undulation on the lorica wall. Traditionally, the morphological characteristics of the lorica and the colony organization have been used for the delimitation of Dinobryon species.MethodsTo understand the taxonomy and phylogeny of colonial Dinobryon species, we performed molecular and morphological studies using 39 unialgal cultures and 46 single colony isolations from environmental specimens collected in Korea. We used a nuclear internal transcript spacer (ITS1-5.8S-ITS2) to find the genetic diversity of Dinobryon from environmental samples and a combined dataset from six gene sequences (nuclear SSU and LSU rRNA, plastid LSU rRNA, rbcL and psaA, and mitochondrial CO1 genes) for phylogenetic analysis.Results and discussionWe found 15 different lineages based on the genetic diversity of the nuclear ITS sequences. The phylogenetic tree of the colonial species based on the combined multigene dataset were divided into 18 subclades, including five new species, each with unique molecular signatures for the E23-5 helix of the V4 region in the nuclear SSU rRNA and the E11-1 helix of D7b, and the E20-1 helix of D8 regions in the nuclear LSU rRNA. Morphological studies were focused on lorica dimension and shape, and stomatocyst morphology. The Dinobryon species showed similarities or differences in lorica morphologies between and within species, and also differences in lorica size between culture and environmental samples. Five Dinobryon species formed distinctive stomatocysts, their stomatocyst morphologies, including collar structure, surface ornamentation, and cyst shape, showed unique characteristics in each species and were useful for identification. Here, we propose five new species based on morphological and molecular evidences: D. cylindricollarium, D. exstoundulatum, D. inclinatum, D. similis, and D. spinum.

Dataset Information

The Recognition and Molecular Phylogeny of Mugilogobius mertoni Complex (Teleostei: Gobiidae), with Description of a New Cryptic Species of M. flavomaculatus from Taiwan.

Publications

The Recognition and Molecular Phylogeny of <i>Mugilogobius mertoni</i> Complex (Teleostei: Gobiidae), with Description of a New Cryptic Species of <i>M. flavomaculatus</i> from Taiwan.

Similar Datasets

OmicsDI is part of the ELIXIR infrastructure

Tweets