One northward, one southward: Contrasting biogeographical history in two benthic freshwater fish genera across Southeast Asia (Teleostei: Cobitoidea: Nemacheilus, Pangio)

Šlechtová, Vendula; Musilová, Zuzana; Tan, Heok Hui; Kottelat, Maurice; Bohlen, Jörg

doi:10.1016/j.ympev.2021.107139

Cited by 8 publications

(18 citation statements)

References 28 publications

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“…Nemacheilidae are distributed across the majority of Europe and Asia and are quite common, being found in nearly every river basin [21][22][23]. This omnipresence makes them one of the most characteristic elements of the Eurasian freshwater fauna and, as recent studies have shown, highly suitable model organisms for the study of evolutionary history and biogeography (e.g., [17,24,25]). With more than 700 species in roughly 50 genera it is a rich and diverse family, but with the number and outline of genera far from being settled [23,[26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%

“…Nearly all of these species live in a coherent geographic area that stretches from northeast India through Myanmar to southwest China and the western parts of Thailand and Laos. The pigmentation pattern has recently been shown to be indicative of the three largest genetic clades in another nemacheilid genus, Nemacheilus [17], and the distinctive feature of black blotches on the lower lip to be indicative of the Schistura robertsi species group [25]. The similarity in pigmentation pattern and the geographic proximity of their occurrence prompted the hypothesis that the species with the poculi-pattern represent another monophyletic species group within Nemacheilidae.…”

Section: Introductionmentioning

confidence: 99%

“…x FOR PEER REVIEW 3 of 21 parts of Thailand and Laos. The pigmentation pattern has recently been shown to be indicative of the three largest genetic clades in another nemacheilid genus, Nemacheilus[17], and the distinctive feature of black blotches on the lower lip to be indicative of the Schistura robertsi species group[25].…”

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Using Species Groups to Approach the Large and Taxonomically Unresolved Freshwater Fish Family Nemacheilidae (Teleostei: Cypriniformes)

Dvořák

Šlechtová

Bohlen

2022

Biology

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Large animal families with unresolved taxonomy are notoriously difficult to handle with respect to their biodiversity, systematics, and evolutionary history. We approach a large and taxonomically unresolved family of freshwater fishes (Nemacheilidae, >600 species) by proposing, on the basis of morphologic data, a species group within the family and study its phylogeny with conclusions regarding its diversity, taxonomy, and biogeographic history. Phylogenetic analyses of two mitochondrial and three nuclear genes of 139 specimens, representing about 46 species (17 candidate species from the proposed species-group, plus 29 comparative species), revealed that the proposed species group does not form a distinct monophyletic lineage, but that the candidate and comparative species mixed in three different lineages. However, the results revealed more than 20% of undescribed species within the ingroup and showed that species do not cluster according to the presently recognised genera. At least one of the genetic clades shows signs of an eastward range expansion during the second half of Miocene from north India via Myanmar into Laos, western China, and western Thailand. We conclude that the approach of picking monophyletic lineages to study biodiversity, systematics, and evolutionary history helps to open the door to large animal families.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Using Species Groups to Approach the Large and Taxonomically Unresolved Freshwater Fish Family Nemacheilidae (Teleostei: Cypriniformes)

Dvořák

Šlechtová

Bohlen

2022

Biology

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“…Several potential scenarios can be predicted, ranging from an origin through in situ lineage proliferation initiated in Borneo after its isolation (c. 20-30 Ma) to multiple immigrations events from the continent during the emergence of Sundaland islands (c. 30-5 Ma; Sholihah et al, 2021;Šlechtová et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Limited dispersal and in situ diversification drive the evolutionary history of Rasborinae fishes in Sundaland

Sholihah

Delrieu‐Trottin

Sukmono

et al. 2021

Journal of Biogeography

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Aim: Sea-level changes have long been put forward to explain the colonization of Southeast Asian islands by freshwater aquatic organisms. We examined the relative impact of Sundaland geology since the Oligocene and of Pleistocene Eustatic Fluctuations on the mitochondrial lineage diversification of a species-rich subfamily of freshwater fishes widely distributed in Southeast Asia. We specifically tested if the expansion of exposed lands and increased island connectivity during Pleistocene low sea levels (the paleoriver hypothesis) induced bursts of diversification. Location: Sundaland.Taxon: Rasborinae (Actinopterygii, Cypriniformes, Danionidae). Methods:We aggregated 1,017 cytochrome oxidase I sequences and 79 mitogenomes to delineate Molecular Operational Taxonomic Units (MOTUs) and further reconstruct a time-calibrated phylogeny of Rasborinae. Ancestral area estimations were conducted using both island and paleoriver partitioning to examine the impact of island connectivity during Pleistocene sea-level changes on dispersal. Temporal trends of diversification are explored through statistical selection of best-fit models. Results: The origin of Sundaland mitochondrial lineages is dated at c. 33 Ma and four major clades are identified, which diversified between c. 31 and 22 Ma. The Island of Borneo and North Sunda paleoriver are identified as the source of Sundaland Rasborinae. Geographical patterns of lineage divergence indicate that most divergence events occurred within islands and diversification under constant birth rate models are the most likely for all clades.

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“…Southeast Asia is a global biodiversity hotspot in terms of both plant and animal species (Song et al, 2020a;Šlechtová et al, 2021). Vietnam makes a significant contribution to this biodiversity, despite a history of massive forest damage during the Vietnam War, a large number of highly endangered terrestrial and freshwater ecosystems, and a still unclear conservation policy (MOF, 1991;Department of Forest Protection, 1997;Mercker & Vu, 1997).…”

Section: Introductionmentioning

confidence: 99%

Diversity, distribution, and threats of the Juglandaceae in Vietnam

Sâm¹,

Tung²,

Jasiñska³

et al. 2021

Dendrobiology

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Vietnam is one of the main centers of generic diversity for Juglandaceae worldwide. In this study, we present for the first time a province-wide distribution of all 3 subfamilies, 7 genera, and 11 Vietnamese species, and give an update on the habitats of all Vietnamese Juglandaceae species, their uses, and current threats. Juglandaceae are found throughout Vietnam. However, most species occur predominantly in the northern part of the country between 600 and 1200 m. Some taxa range is found extensively from sea level up to 2,500 meters above sea level. According to the IUCN Red List, Rhoiptelea chiliantha, Carya sinensis, and Pterocarya tonkinensis are threatened while Engelhardia spicata, E. serrata, Alfaropsis roxburghiana, Pterocarya stenoptera are classified as least concerned. Carya tonkinensis is threatened locally, and Engelhardia spicata var. colebrookiana and Platycarya strobilacea merit “threatened” designation in Vietnam’s Red Data Book. The most frequent threats are logging, land-use change, and habitat destruction due to artificial wood plantations or road construction. Until now, no conservation measures have been applied for any of the species in Vietnam, although some species occur in national parks. Our study gives an important update on the current diversity and distribution of Juglandaceae in Vietnam.We point out the need for a correct assessment of the threat status of various species on a national and international scale to protect the rarest and most endangered of them. Further research, the use of various forms of protection of individual taxa and/or their habitats, and drawing the attention of an international group of researchers to the urgent need to work together to protect biodiversity in Vietnam hot spots are necessary.

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One northward, one southward: Contrasting biogeographical history in two benthic freshwater fish genera across Southeast Asia (Teleostei: Cobitoidea: Nemacheilus, Pangio)

Cited by 8 publications

References 28 publications

Using Species Groups to Approach the Large and Taxonomically Unresolved Freshwater Fish Family Nemacheilidae (Teleostei: Cypriniformes)

Using Species Groups to Approach the Large and Taxonomically Unresolved Freshwater Fish Family Nemacheilidae (Teleostei: Cypriniformes)

Limited dispersal and in situ diversification drive the evolutionary history of Rasborinae fishes in Sundaland

Diversity, distribution, and threats of the Juglandaceae in Vietnam

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