Comparative morphology and mitogenomics of freshwater mussels Koreosolenaia, Parvasolenaia, and Sinosolenaia (Bivalvia: Unionidae: Gonideinae) DOI Creative Commons
Liping Zhang, Xiaoyan Liu, Xinyan Hu

et al.

BMC Genomics, Journal Year: 2024, Volume and Issue: 25(1)

Published: Dec. 24, 2024

Amidst the escalating loss of global biodiversity, freshwater mussels (family Unionidae) have become one most imperiled animal groups. Acquiring more biological and phylogenetic information on understudied taxa constitutes a pivotal aspect conservation biology. Consequently, comprehensive examination was conducted Koreosolenaia, Parvasolenaia, Sinosolenaia from China encompassing morphology, anatomy, distribution, molecular systematics to provide theoretical support for future species endangerment assessments biodiversity conservation. The shell characteristics were clearly distinct, soft-body morphology could also be easily distinguished each other. papillae incurrent aperture iridinea, recognita, oleivora, which previously described as difficult, exhibited significant variations that utilized diagnosis. Furthermore, both excurrent apertures had small cysts their dorsal surfaces may unique this particular group. Comparative analysis six mitochondrial genomes (Parvasolenaia rivularis, Koreosolenaia sitgyensis, carinata, oleivora) revealed completely consistent gene arrangement pattern. Additionally, there high consistency in nucleotide base content skewness, amino acid usage, relative synonymous codon usage among complete genomes. Mitochondrial phylogenomics these with additional within Gonideinae robustly supported generic relationships follows: (Inversidens + ((Microcondylaea Sinosolenaia) (Koreosolenaia (Ptychorhynchus (Postolata Cosmopseudodon)))))). present study provided data anatomy Sinosolenaia, thereby clarifying diagnostic challenging taxa. we established robust framework at levels based genomics.

Language: Английский

Revisiting the genus Nodularia (Bivalvia, Unionidae): Mitochondrial phylogenomics and the description of a new species DOI Creative Commons

Kaiyu Hou,

Xiaoyan Liu, Liping Zhang

et al.

Zoosystematics and Evolution, Journal Year: 2025, Volume and Issue: 101(1), P. 35 - 44

Published: Jan. 2, 2025

The genus Nodularia poses a significant challenge to traditional species classification and identification due its highly convergent variable shells, rendering it one of the most intricate groups within family Unionidae. Fortunately, progress has been made by researchers in recent years regarding validity phylogeny this group based on molecular data. However, inadequate exploration regional constraints inherent limitations research methodologies remains crucial factor contributing underestimation diversity. In study, new freshwater mussel from Qingshui River Nanning City, Guangxi Province, China, guiensis sp. nov. , is described shell morphology, anatomical characters, phylogenetics. Mitochondrial phylogenomic analyses reveal following phylogenetic relationships: ((( hanensis + micheloti ) dorri ( breviconcha huana fusiformans (( nuxpersicae nipponensis dualobtusus douglasiae ))))))). discovery taxon further enhances diversity level China also highlights necessity for comprehensive surveys unexplored regions order potentially unveil additional taxa future.

Language: Английский

Citations

1
Underestimated diversity: A new species of the genus Cuneopsis (Bivalvia, Unionidae, Unioninae) from Henan, China DOI Creative Commons

Kaiyu Hou,

Xiaoyun Wang, Nan Fang

et al.

Zoosystematics and Evolution, Journal Year: 2025, Volume and Issue: 101(1), P. 341 - 351

Published: Feb. 14, 2025

The global decline of freshwater mussels and their crucial ecological services highlights the necessity urgency developing guiding conservation efforts for this group. Accurately delineating species understanding phylogeny are to core conservation. Here, we integrate shell morphology, soft-body anatomy, molecular systematics describe a new mussel from Shi River in Xinyang City, Henan Province, China, i.e., Cuneopsis celtiosimilis sp. nov. Morphologically, resembles its congeneric C. kiangsiensis celtiformis size, shape, sculpture. However, can be distinguished closely related congeners by pseudocardinal teeth. For species, two teeth left valve join together form continuous strip; single tooth on right is more squashed lower; papillae incurrent aperture shorter, forming pyramidal shape arranged rows. Molecularly, based mitochondrial barcoding gene cytochrome c oxidase subunit I ( COI ), minimum genetic distance between other known 4.6% vs. ). Additionally, complete mitogenome was also assembled annotated. Based phylogenomic analyses, results clarify phylogenetic position establish most comprehensive relationship genus date, as follows: (((( demangei + heudei ) szechenyii (( )) rufescens discovery taxon contributes existing knowledge key all provided aid identification understudied genus.

Language: Английский

Citations

0
A new genus and species of freshwater mussel from the Pearl River Basin in Guangxi, China (Bivalvia, Unionidae, Gonideinae) DOI Creative Commons
Y.S. Dai, Zhong‐Guang Chen, Fan Li

et al.

Zoosystematics and Evolution, Journal Year: 2025, Volume and Issue: 101(2), P. 805 - 812

Published: April 17, 2025

A new genus and species of freshwater mussels, Guiunio rarus Chen, Li, Dai & Wu, gen. et sp. nov. , is described from the Pearl River Basin in China based on comparative morphology molecular phylogeny. The taxon belongs to tribe Gonideini can be distinguished other genera by a unique combination characteristics: shell medium-sized, moderately thick, flat, long, sub-glossy, opaque; anterior small, rounded short; posterior extremely expanded, wide with an indistinct obtuse angle middle margin; papillae flap margin highly degraded. validity it further supported phylogenetic analysis COI 16S 28S sequences.

Language: Английский

Citations

0
Molecular phylogeny reveals a new genus and species of freshwater mussel (Bivalvia, Unionidae, Gonideinae) from Jiangxi, China DOI Creative Commons
Y.S. Dai, Zhong‐Guang Chen,

Yu-Zhuo Cheng

et al.

Zoosystematics and Evolution, Journal Year: 2024, Volume and Issue: 100(4), P. 1419 - 1429

Published: Oct. 22, 2024

Freshwater mussels of the tribe Gonideini (Bivalvia: Unionidae: Gonideinae) constitute one most taxonomically diverse groups and serve as keystone species in riverine lacustrine ecosystems across East Asia. A new genus Unionidae) is described from Jiangxi, China, Pseudopostolata angula gen. et sp. nov. based on an integrative analysis shell morphology molecular data. The validity supported by distinct conchological features: a short, rounded anterior; long, wide posterior; slightly downward-curved dorsal margin; distinctly obtuse angle at center posterior margin. multi-locus ( COI + 16S rRNA 28S rRNA) phylogeny showed that formed monophyletic group subfamily Gonideinae. identified sister to clade comprising genera Postolata , Cosmopseudodon Obovalis Ptychorhynchus Parvasolenaia Koreosolenaia . We emphasize significant morphological convergence freshwater mussels, particularly within Gonideini, highlighting necessity integrated taxonomic approach for accurate generic classification this group.

Language: Английский

Citations

2
Comparative morphology and mitogenomics of freshwater mussels Koreosolenaia, Parvasolenaia, and Sinosolenaia (Bivalvia: Unionidae: Gonideinae) DOI Creative Commons
Liping Zhang, Xiaoyan Liu, Xinyan Hu

et al.

BMC Genomics, Journal Year: 2024, Volume and Issue: 25(1)

Published: Dec. 24, 2024

Amidst the escalating loss of global biodiversity, freshwater mussels (family Unionidae) have become one most imperiled animal groups. Acquiring more biological and phylogenetic information on understudied taxa constitutes a pivotal aspect conservation biology. Consequently, comprehensive examination was conducted Koreosolenaia, Parvasolenaia, Sinosolenaia from China encompassing morphology, anatomy, distribution, molecular systematics to provide theoretical support for future species endangerment assessments biodiversity conservation. The shell characteristics were clearly distinct, soft-body morphology could also be easily distinguished each other. papillae incurrent aperture iridinea, recognita, oleivora, which previously described as difficult, exhibited significant variations that utilized diagnosis. Furthermore, both excurrent apertures had small cysts their dorsal surfaces may unique this particular group. Comparative analysis six mitochondrial genomes (Parvasolenaia rivularis, Koreosolenaia sitgyensis, carinata, oleivora) revealed completely consistent gene arrangement pattern. Additionally, there high consistency in nucleotide base content skewness, amino acid usage, relative synonymous codon usage among complete genomes. Mitochondrial phylogenomics these with additional within Gonideinae robustly supported generic relationships follows: (Inversidens + ((Microcondylaea Sinosolenaia) (Koreosolenaia (Ptychorhynchus (Postolata Cosmopseudodon)))))). present study provided data anatomy Sinosolenaia, thereby clarifying diagnostic challenging taxa. we established robust framework at levels based genomics.

Language: Английский

Citations

0