A New Species of Dwarf Channa (Teleostei: Channidae) from Meghalaya, Northeast India

Praveenraj, J.; Uma, A.; Nallathambi, Moulitharan; Singh, Sadokpam Gojendro

doi:10.1643/ci-18-079

Cited by 10 publications

(4 citation statements)

References 20 publications

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“…Assam as Channa bipuli Praveenraj, Uma, Moulitharan, et al, , Channa sp Bhutan foothills as Channa quinquefasciata Praveenraj, Uma, Knight, et al, and Channa sp. Northeast India as Channa lipor Praveenraj Uma, Moulitharan, & Singh, . In addition, members of one of three highly divergent clades within Channa ornatipinnis Britz, used by Conte‐Grand et al (), comprising specimens from India, were recently found to belong to a new species, Channa stiktos Lalramliana, Knight, Lalhlimpuia & Singh ().…”

Section: Introductionmentioning

confidence: 99%

Snakehead (Teleostei: Channidae) diversity and the Eastern Himalaya biodiversity hotspot

Rüber

Tan

Britz

2019

J Zool Syst Evol Res

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The collision of the Indian and Eurasian landmasses in the Cenozoic was a decisive factor in shaping biodiversity patterns in Southern and Southeastern Asia. While most studies thus far have focused on the biotic interchange between India and Eurasia and evolutionary diversification on or around the Tibetan Plateau, little attention has been paid to the biodiversity buildup in the Eastern Himalaya biodiversity hotspot (EHH) which harbors over 540 freshwater fish species with a high degree of endemicity. An important component of the regional ichthyofauna are snakehead fishes of the family Channidae comprising throughout their African‐Asian distribution 47 valid species, but a poorly known species‐level diversity. In order to evaluate channid intrarelationships and biogeography, a temporal and geographic framework of channid evolution in conjunction with a critical reevaluation of the channid fossil record is warranted. Based on molecular data, we provide a comprehensive species‐level phylogeny based on 223 channid individuals belonging to 37 species and one additional currently undescribed species. The first split within channids separates the African genus Parachanna from the Asian genus Channa which can be divided into eight distinct species groups (Argus, Asiatica, Gachua, Lucius, Marulius, Micropeltes, Punctata, and Striata groups). Large intraspecific divergences were observed within several species and potentially indicate additional species‐level diversity. Almost 40% of the channid species are narrow‐range endemics belonging to the Gachua group. These are found in the EHH making this area an outstanding hotspot for endemic channid diversity. The large majority of the EHH endemics are restricted to the southern foothills of the Eastern Himalaya and the Shillong‐Mikir Hills Plateau, areas west of the Indoburman Ranges. Our results reveal complex and difficult to interpret biogeographic patterns indicating that both vicariance and dispersal events have potentially been responsible in shaping current distribution patterns in Asian channids. We recognize †Parachanna fayumensis as the oldest reliable channid fossil and argue that the three oldest so‐called channid fossils (i.e., †Eochanna chlorakkiensis, †Anchichanna kuldanensis, and †Ophiocephalus lydekkeri) lack clear diagnostic features that would allow them to be unequivocally placed within Channidae.

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Section: Introductionmentioning

confidence: 99%

Snakehead (Teleostei: Channidae) diversity and the Eastern Himalaya biodiversity hotspot

Rüber

Tan

Britz

2019

J Zool Syst Evol Res

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“…Remarks —The dentary is morphologically similar to that in fossil and living representatives of the genus Channa and its relatives (e.g., Sytchevskaya, 1989; Böhme, 2004; Gaudant, 2006; Praveenraj et al, 2018, 2019a, 2019b). Given the location of this specimen, it probably belongs to † Channa tverdislovi Sytchevskaya, 1989.…”

Section: Percidaementioning

confidence: 84%

New data on the Miocene vertebrate assemblage of the Zaysan Basin (Central Asia) with implications for biostratigraphy, paleoecology, and paleobiogeography

Kovalchuk

Divay

Barkaszi

et al. 2022

Journal of Vertebrate Paleontology

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The Zaysan Basin in Central Asia has a long geological history, and it has therefore seen major climatic and evolutionary transformations. The Miocene fossil record of this locality is remarkably rich representing all groups of vertebrates. A revision of fish remains has been carried out and new records of fishes, reptiles, and mammals recovered from Miocene deposits of the Zaysan Basin have been described. The study of fossils has revealed the existence of a quite diverse vertebrate assemblage in the basin during the Miocene. Representatives of the Percidae and Amiinae, and the species †Leobergia zaissanica predominated among fishes, whereas reptiles were supposedly represented in the assemblage by pan-trionychid turtles and crocodiles. No amphibians have been revealed, while the only mammalian taxa in the studied sample is a fossorial rodent of the genus †Tachyoryctoides. In contrast to previous views regarding the Middle Miocene age of the Zaysan Formation, the analysis of fish and mammal remains recovered from this locality strongly suggests an Early Miocene age. Findings of bowfin remains in the Zaysan Basin confirm that this group had existed outside of North America beyond the Paleogene/Neogene transition, and, at the same time, these specimens are the last known occurrences of the taxa Amiidae, Amiiformes, and Halecomorphi outside of North America. Data also indicate the existence of a lacustrine ecosystem in the Zaysan Basin during the Miocene with a taxonomically rich vertebrate assemblage and diverse trophic relations being an important center of biodiversity in the Miocene of Central Asia.

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“…At present, according to the information published in the Integrated Taxonomic Information System (https://itis.gov/), Channidae is divided Diversity 2024, 16, 346 2 of 14 into the genera Channa and Parachanna. Channa contains 53 species that are distributed across Asia [4][5][6][7][8][9][10], while Parachanna contains only 3 species that are distributed across Africa [11]. Previously, the classification of snakeheads was mainly based on morphological characteristics.…”

Section: Introductionmentioning

confidence: 99%

The Complete Mitogenomes of Two Species of Snakehead Fish (Perciformes: Channidae): Genome Characterization and Phylogenetic Analysis

Xu,

Zhang,

et al. 2024

Diversity

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Channidae (snakehead fish) is a family of medium-to-large freshwater carnivorous fish and contain the genus, Channa. Here, the complete mitogenomes of two Channa fish were determined and comparatively analyzed with the mitogenomes of 16 other Channidae fish species. The two newly sequenced complete mitogenomes were circular DNA molecules with sizes of 16,953 bp (Channa burmanica; OP954106) and 16,897 bp (Channa aurantimaculata; OQ134162). The mitogenomes were composed of 37 genes and one D-loop region. Positive AT skews and negative GC skews were found in the mitogenomes. Most protein-coding genes (PCGs) started with the conventional start codon, ATG; however, the sequence of the stop codon was variable. There was no obvious difference in relative synonymous codon usage among the two mitogenomes, and the two species shared a similar number of codon usage of mitogenomic PCGs, which was also similar to the mean values for the other 15 species of Channa. All Ka/Ks values were <1; cox1 had the lowest value, and atp8 had the highest. All of the tRNAs were typical clover structures, except trnS1. Phylogenetic analysis showed that C. burmanica and C. aurantimaculata shared a close relationship and that they were also closely related to C. gachua. These findings enrich the gene database of Channidae species, clarify the mitochondrial genome structure of the two species, and provide basic data for invasive biological surveillance in the future.

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A New Species of Dwarf Channa (Teleostei: Channidae) from Meghalaya, Northeast India

Cited by 10 publications

References 20 publications

Snakehead (Teleostei: Channidae) diversity and the Eastern Himalaya biodiversity hotspot

Snakehead (Teleostei: Channidae) diversity and the Eastern Himalaya biodiversity hotspot

New data on the Miocene vertebrate assemblage of the Zaysan Basin (Central Asia) with implications for biostratigraphy, paleoecology, and paleobiogeography

The Complete Mitogenomes of Two Species of Snakehead Fish (Perciformes: Channidae): Genome Characterization and Phylogenetic Analysis

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