Into Africa via docked India: a fossil climbing perch from the Oligocene of Tibet helps solve the anabantid biogeographical puzzle

Wu, Fuli; He, Dekui; Fang, Gengyu; Deng, Tao

doi:10.1016/j.scib.2019.03.029

Cited by 19 publications

(23 citation statements)

References 49 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The collision of the Arabian and Eurasian plates, leading to the closure of the Tethys Ocean in the Late Eocene (~35 Ma: Allen & Armstrong, 2008), intensified the exchange of freshwater organisms between Asia and Africa (Lavoué, 2020; McLoughlin, 2001; Sil, Aravind, & Karanth, 2020; Wu et al, 2019). This provided the first opportunities for Cyprinidae to disperse into Africa.…”

Section: Discussionmentioning

confidence: 99%

“…A handful of lineages such as Rasboroides , Malpulutta and Belontia , while confined to the more humid parts of the island, are absent from India. All three show close relationships, instead, to South‐East Asian lineages (Liao, Kullander, & Fang, 2011; Rüber, Britz, & Zardoya, 2006; Tang et al, 2010; Wu, He, Fang, & Deng, 2019). It appears that their ancestors dispersed to the island before the South Indian plains aridified at the end of the Miocene (Ashton, 2014; Morley, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…It appears that their ancestors dispersed to the island before the South Indian plains aridified at the end of the Miocene (Ashton, 2014;Morley, 2018). Rüber et al (2006) and Wu et al (2019) estimated, for example, that Sri Lankan Belontia diverged from its South-East Asian sister group in the Oligocene, lending credibility to such a scenario.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Diversity, phylogeny and biogeography of Systomus (Teleostei, Cyprinidae) in Sri Lanka

et al. 2020

View full text Add to dashboard Cite

The South and SouthEast Asian freshwater fish genus Systomus (Cyprinidae) comprises 17 valid species. Six nominal species, including three endemics, have been reported from Sri Lanka, a continental island separated from India by a shallow-shelf sea. The species diversity of Systomus on the island has until now not been assessed; neither has an evaluation been made of their phylogenetic history. Here, based on an analysis of the nuclear recombination activating protein 1 (rag1), and mitochondrial cytochrome c oxidase subunit 1 (cox1) and cytochrome b (cytb) gene markers, and a morphological examination of 143 specimens from 49 locations in Sri Lanka, we reassess the diversity of Systomus on the island and analyse patterns of their evolution and biogeography. Divergence-time estimates, based on a substitution rate calibration, date the basal split between Systomus and its sister group, the Afrotropical small barbs, to 30.0 Ma (95% highest posterior density: 25.4-35.2 Ma). The species of Systomus belong to two distinct clades. The first includes the Sri Lankan endemics S. asoka, S. martenstyni and S. pleurotaenia, which comprise an insular diversification following the immigration of a common ancestor during the Oligocene. The second, which includes the remaining species of Indian, Sri Lankan and SouthEast Asian Systomus, has a crown age dating to the Late Miocene. Morphological and molecular species delimitation analyses failed to validate the two nominal species, S. spilurus and S. timbiri, previously reported from Sri Lanka: both are considered synonyms of S. sarana, as are the nomina S. chryseus, S. chrysopoma, S. laticeps, S. rufus, S. pinnauratus and S. subnasutus. Four genetically and geographically discrete lineages of S. sarana occur in the island, and three in India. Molecular species delimitation analysis suggests these all belong to a single species, S. sarana. The genetically distinct Sri Lankan populations of S. sarana result from Plio-Pleistocene dispersal or vicariance events between India and Sri Lanka-as a result of emergence and inundation of the now submerged isthmus connecting the two landmasses-as well as autochthonous insular diversification.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Diversity, phylogeny and biogeography of Systomus (Teleostei, Cyprinidae) in Sri Lanka

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Initial estimates constrained the lake surface elevation to have been ~1 km at ~25 Ma ( Wu et al., 2017 ), but this implicitly assumed a modern thermal lapse rate, which is inappropriate for paleoaltimetry ( Meyer, 2007 ; Spicer, 2018 ), and the age is only loosely constrained but likely to be at least late Oligocene if not a little older. Even assuming a late Oligocene age for Eoanabas, this discovery pushed back the origin of the anabantids by at least 20 million years ( Wu et al., 2017 ) and suggests an early Eocene Southeast Asian origin of the group ( Wu et al., 2018 ).…”

Section: The Topographic Evolution Of the Tibetan Regionmentioning

confidence: 99%

Cenozoic topography, monsoons and biodiversity conservation within the Tibetan Region: An evolving story

Spicer

Farnsworth

2020

Plant Diversity

View full text Add to dashboard Cite

The biodiversity of the Himalaya, Hengduan Mountains and Tibet, here collectively termed the Tibetan Region, is exceptional in a global context. To contextualize and understand the origins of this biotic richness, and its conservation value, we examine recent fossil finds and review progress in understanding the orogeny of the Tibetan Region. We examine the deep-time origins of monsoons affecting Asia, climate variation over different timescales, and the establishment of environmental niche heterogeneity linked to topographic development. The origins of the modern biodiversity were established in the Eocene, concurrent with the formation of pronounced topographic relief across the Tibetan Region. High (>4 km) mountains to the north and south of what is now the Tibetan Plateau bounded a Paleogene central lowland (<2.5 km) hosting moist subtropical vegetation influenced by an intensifying monsoon. In mid Miocene times, before the Himalaya reached their current elevation, sediment infilling and compressional tectonics raised the floor of the central valley to above 3000 m, but central Tibet was still moist enough, and low enough, to host a warm temperate angiosperm-dominated woodland. After 15 Ma, global cooling, the further rise of central Tibet, and the rain shadow cast by the growing Himalaya, progressively led to more open, herb-rich vegetation as the modern high plateau formed with its cool, dry climate. In the moist monsoonal Hengduan Mountains, high and spatially extensive since the Eocene but subsequently deeply dissected by river incision, Neogene cooling depressed the tree line, compressed altitudinal zonation, and created strong environmental heterogeneity. This served as a cradle for the then newly-evolving alpine biota and favoured diversity within more thermophilic vegetation at lower elevations. This diversity has survived through a combination of minimal Quaternary glaciation, and complex relief-related environmental niche heterogeneity. The great antiquity and diversity of the Tibetan Region biota argues for its conservation, and the importance of that biota is demonstrated through our insights into its long temporal gestation provided by fossil archives and information written in surviving genomes. These data sources are worthy of conservation in their own right, but for the living biotic inventory we need to ask what it is we want to conserve. Is it 1) individual taxa for their intrinsic properties, 2) their services in functioning ecosystems, or 3) their capacity to generate future new biodiversity? If 2 or 3 are our goal then landscape conservation at scale is required, and not just seed banks or botanical/zoological gardens.

show abstract

“…. 这些研究成果为认识高原生态系统在新生 13,14,24~28] , 能够从生物和环境两个方面刻画更多细 [29] , 这些盆地虽然普遍面积不大, 但其沉积序列保存了周边地区构造运动的关键信息, 是研究新生代高原隆升历史的重要对象, 因而在最近十多年来受到了地学各领域研究者的高度关注 [5,27,28,30~38] , 其中高原古环境的直接证据--来自伦坡拉和尼玛盆地(图1)的古生物学系列新发现更是引起了众多地学同行的热切关注 [10,13,14,17,18,20,21,26,39] . [10,13,17,20,21,23] .…”

unclassified

Significant shift in the terrestrial ecosystem at the Paleogene/Neogene boundary in the Tibetan Plateau

Deng

Wang

et al. 2019

Chin. Sci. Bull.

Self Cite

View full text Add to dashboard Cite

Into Africa via docked India: a fossil climbing perch from the Oligocene of Tibet helps solve the anabantid biogeographical puzzle

Cited by 19 publications

References 49 publications

Diversity, phylogeny and biogeography of Systomus (Teleostei, Cyprinidae) in Sri Lanka

Diversity, phylogeny and biogeography of Systomus (Teleostei, Cyprinidae) in Sri Lanka

Cenozoic topography, monsoons and biodiversity conservation within the Tibetan Region: An evolving story

Significant shift in the terrestrial ecosystem at the Paleogene/Neogene boundary in the Tibetan Plateau

Contact Info

Product

Resources

About