Kryptopterus geminus, a new species of silurid catfish (Teleostei: Siluridae) from mainland Southeast Asia

Ng, Heok Hee

doi:10.11646/zootaxa.305.1.1

Cited by 3 publications

(3 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…This hypothesis was widely used to explain the vicariant speciation in many south‐east Asian freshwater fish groups (Rainboth, 1991). This is illustrated by the allopatric distributions of the silurid sister species, Hemisilurus mekongensis Bornbusch & Lundberg 1989 and Hemisilurus moolenburghi Weber & de Beaufort 1913 (Bornbusch & Lundberg, 1989), Kryptopterus geminus Ng 2003 and Kryptopterus cryptopterus (Bleeker 1851) (Ng, 2003) and Wallago micropogon Ng 2004 and Wallago leerii Bleeker 1851 (Ng, 2004), as well as the bagrid sister species between Bagrichthys majusculus Ng 2002 and the black lancer catfish Bagrichthys macracanthus (Bleeker 1854) (Ng, 2002). The former sister species are confined to the continental section of south‐east Asia (the Chao Phraya and the Mekong Rivers), while the latter distributes only in the insular section (Borneo, Sumatra and Java).…”

Section: Discussionmentioning

confidence: 99%

Molecular phylogenetic relationships of pangasiid and schilbid catfishes in Thailand

Karinthanyakit

Jondeung

2012

Journal of Fish Biology

View full text Add to dashboard Cite

In this study, the phylogenetic relationships among 13 pangasiids and six schilbids of Thailand were reconstructed based on the almost complete mitochondrial cytochrome b (cyt b), 12S rRNA, tRNA-Val and 16S rRNA, as well as the partial nuclear recombination-activating gene 1 (rag1) sequences by using the maximum likelihood and the Bayesian inference methods of phylogenetic reconstruction. The reconstructed phylogeny based on the concatenated sequence data set recovered Pangasiidae and Schilbidae as reciprocally monophyletic groups. Within Pangasiidae, four major clades were recovered, which according to the cyt b genetic distances can be categorized into four genera: Pangasius, Pseudolais, Helicophagus and Pangasianodon. The genus Pangasianodon was strongly supported as the most basal taxon within pangasiids, whereas Pseudolais + Helicophagus were recovered as a sister group of Pangasius. Within the latter, the giant pangasius Pangasius sanitwongsei was recovered as a sister group of the spot pangasius Pangasius larnaudii, Pangasius krempfi as a sister group of Pangasius nasutus + Pangasius conchophilus and Pangasius polyuranodon as a sister species of Pangasius macronema. Other internal phylogenetic relationships, however, were unresolved. Within Schilbidae, Pseudeutropius was supported as the most basal lineage. Eutropiichthys was recovered as a sister group of Clupisoma. The enigmatic Clupisoma sinense was recognized as more closely related to Laides longibarbis than to Clupisoma prateri. Thus, based on the cyt b genetic distances, a recategorization of C. sinense to the genus Laides is suggested. On the basis of a relaxed clock fossil calibration, the divergence of pangasiids and schilbids was estimated to have occurred 14·93 million years before present (b.p.) during the Miocene epoch. The separation between Pangasiidae and Schilbidae took place c. 13·12 Mb.p. during the early middle Miocene. The estimated divergence time of pangasiids is similar to the age of the calibrated fossil, Cetopangasius chaetobranchus, which was discovered in north-central Thailand. This suggests that the oldest pangasiid ancestor diverged into diverse genera in the area.

show abstract

Section: Discussionmentioning

confidence: 99%

Molecular phylogenetic relationships of pangasiid and schilbid catfishes in Thailand

Karinthanyakit

Jondeung

2012

Journal of Fish Biology

View full text Add to dashboard Cite

show abstract

“…Cá bản địa Mê Kông dựa theo Kottelat (2001aKottelat ( , 2013 (2020) [21][22][23][24][25][26] ; các loài bộ cá da trơn Siluriformes dựa theo Jiang và cs. (2012), Ng (2002Ng ( , 2003Ng ( , 2004, Ng & Freyhof (2003, Ng & Kottelat (2000, 2013, 2021 [43][44][45][46][47] ; phả hệ và thời gian phát sinh của các họ của bộ cá da trơn Siluriformes của Kappas và cs. (2016) 48 ; phả hệ sinh của bộ cá rô đồng Anabantiformes của Rüber và cs.…”

Section: Phương Pháp Nghiên Cứuunclassified

The phylogenetic relationship and distribution of indigenous freshwater fishes in the Mekong tributaries, Vietnam

Duc Huy,

Manh Pham,

Trong Tran

2022

Sci. Tech. Dev. J. - Nat. Sci.

View full text Add to dashboard Cite

The investigation of the biodiversity conservation along river catchments is a cost-effective nature-based solution to ensure the availability and sustainable management of water and the richness of biodiversity for all, with many co-benefits for the other sustainable development goals. The need for further exploration and conservation assessments of inland freshwater fish fauna coincides with expanding threats to freshwater resources from flow alteration and water diversion, increased sediment load, introduced species, overfishing and habitat loss. Meanwhile, former studies on the taxonomy of freshwater fish fauna of the Mekong tributaries in Vietnam were ambiguous and did not afford the phylogenetic relationships and geographic distribution. Our surveys from 2011 to 2021 on revising the indigenous fish fauna provided these phylogenetic relationship and geographic distribution. The evolutionary and phylogenetic relationships were analyzed for fish species by using several mitochondrial and nuclear genomes as COI, Cyto b, 16S rRNA, ATPase 6-8, RAG1, and delineated factors of fish distribution were also inferred. A total of 200 indigenous species belonging to 119 genera, 36 families, 11 orders were identified from 680 specimens collected at 18 sampling sites. Cypriniformes with 125 species (62%) and Siluriformes with 40 species (20%) were the most diverse orders. This study updated the scientific names with the correction of one species and the determination of the phylogenetic relationship. The endemism integrated from this study and the modified global fish phylogenetic data. The Mekong tributaries of Vietnam possessed 73 endemic species, withholding 36% of the total studied primary species. In terms of each ecoregion fauna, the proportion of the Mekong endemics was much higher than those in Nam Neua river (46%), 3S rivers (27%), and Se Pon river (25%). Based on their zoogeography, the studied fishes were subgrouped into three units: 43 species of Lower Langcang, 32 species of Khorat Plateau and 177 species of Kratie‒Stung Treng.

show abstract

“…The members of the silurid catfish genus Phalacronotus and Kryptopterus are small-to medium-sized fishes, whereas Ompok is medium-sized. This catfish lives in freshwaters of South and Southeast Asia (Ng 2003;Ng and Tan 2004). The genus Phalacronotus, Kryptopterus, and Ompok, as currently understood, are probably paraphyletic based on morphological characters (Bornbusch 1995).…”

Section: Introductionmentioning

confidence: 99%

Short Communication: Molecular characteristics and phylogenetic relationships of silurid catfishes (Kryptopterus, Ompok and Phalacronotus) from the Kampar River, Indonesia, based on the cytochrome b gene

et al. 2020

View full text Add to dashboard Cite

Abstract. Elvyra R, Solihin DD, Affandi R, Junior MZ, Suhendra M. 2020. Short Communication: Molecular characteristics and phylogenetic relationships of silurid catfishes (Kryptopterus, Ompok, and Phalacronotus) from the Kampar River, Indonesia, based on the cytochrome b gene. Biodiversitas 21: 3539-3546. The study of molecular characteristics and phylogenetic relationships among silurid catfishes (Kryptopterus, Ompok, and Phalacronotus) is very scarce. Existing data are mostly based on morphological characters. Genetic markers among Kryptopterus, Ompok, and Phalacronotus can be analyzed by exploring the nucleotide and amino acid sequences of the mitochondrial cytochrome b gene region (906 base pairs). This study aims to identify molecular characteristics and phylogenetic relationships of silurid catfishes from the Kampar River based on the cytochrome b gene. This research examined 14 silurids of four species from three genera in the Kampar River of Indonesia. Molecular phylogenetic trees were constructed using the neighbor-joining method. This study revealed that three amino acid sites can be used as specific genetic markers for characterizing Kryptopterus limpok. They are E (glutamic acid) at site 123, V (valine) at site 155, and M (methionine) at site 156. Two amino acid sites can be used as specific genetic markers of Ompok spp., A (alanine) at site 201 for O. hypophthalmus, and S (serine) at site 282 for O. eugeneiatus. Two amino acid sites, I (isoleucine) at site 197 and L (leucine) at site 284, can be used to identify Phalacronotus apogon from the Kampar River, Indonesia. The phylogram results based on genetic distance (p-distance) from nucleotide cytochrome b sequences generally showed that intraspecies of K. limpok, O. eugeneiatus, O. hypophthalmus and P. apogon from the Kampar River formed relationship groups within each species supported by high bootstrap values. Additionally, based on genetic distance, K. limpok data from the Kampar River samples and GenBank formed one relationship group within species of K. limpok with a high bootstrap value. This study proves that cytochrome b gene can be used to identify molecular characteristics and phylogenetic relationships of K. limpok, O. eugeneiatus, O. hypophthalmus, and P. apogon from the Kampar River, Indonesia.

show abstract

Kryptopterus geminus, a new species of silurid catfish (Teleostei: Siluridae) from mainland Southeast Asia

Cited by 3 publications

References 10 publications

Molecular phylogenetic relationships of pangasiid and schilbid catfishes in Thailand

Molecular phylogenetic relationships of pangasiid and schilbid catfishes in Thailand

The phylogenetic relationship and distribution of indigenous freshwater fishes in the Mekong tributaries, Vietnam

Short Communication: Molecular characteristics and phylogenetic relationships of silurid catfishes (Kryptopterus, Ompok and Phalacronotus) from the Kampar River, Indonesia, based on the cytochrome b gene

Contact Info

Product

Resources

About