Phylogeographic studies on two shore crab species from East Asia: similar but different stories

Shin, Jiyeong; Jung, Jae Yun; Kim, Won; Jung, Jongwoo

doi:10.1007/s13258-019-00831-9

Cited by 3 publications

(7 citation statements)

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“…Sea of Japan, South China Sea, Philippine Sea, Sulu Sea, Celebes Sea and Banda Sea). These deeper water basins served as refugia for many marine species during periods of low sea level [ 5 , 76 ], and several studies addressed phylogeographic patterns and the history of this area [ 16 , 20 , 39 , 41 , 77 ]. However, since animals have a wide variety of life cycles and dispersal capabilities [ 78 ], the present-day structures of marine taxa are a mosaic and do not follow a universal pattern [ 76 ].…”

Section: Discussionmentioning

confidence: 99%

“…Congruently, Shin et al . [ 20 ] also detected a shallow genetic gap between Taiwanese and Korean-Japanese populations of two littoral crab species of the genus Hemigrapsus (Brachyura: Varunidae).…”

Section: Discussionmentioning

confidence: 99%

“…Such genetic disconnections and locally structured patterns are also common among partly pelagic [ 19 ] and meroplanktonic (e.g. coastal crabs with planktonic larvae) species [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

“…Numerous studies have thus been conducted to uncover the mechanisms and history of the diversification in this area and to address the local barriers and reasons for lineages’ divergences [ 16 , 39 , 40 ]. On the other hand, the East Asian coastline was affected by many changes during its geological history, and therefore has been given increased attention in several phylogeographic studies [ 20 , 41 – 43 ].…”

Section: Introductionmentioning

confidence: 99%

“…Numerous studies have thus been conducted to uncover the mechanisms and history of the diversification in this area and to address the local barriers and reasons for lineages' divergences [16,39,40]. On the other hand, the East Asian coastline was affected by many changes during its geological history, and therefore has been given increased attention in several phylogeographic studies [20,[41][42][43]. According to the presence of several marginal seas in the area and their role in genetic divergences during ice ages [41,44], a thorough phylogeographic study can potentially uncover undetected biodiversity in this group and date potential divergence events.…”

Section: Introductionmentioning

confidence: 99%

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Molecular phylogeography reveals multiple Pleistocene divergence events in estuarine crabs from the tropical West Pacific

Shahdadi

Wyschetzki

Liu³

et al. 2022

PLoS ONE

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Due to the lack of visible barriers to gene flow, it was a long-standing assumption that marine coastal species are widely distributed, until molecular studies revealed geographically structured intraspecific genetic differentiation in many taxa. Historical events of sea level changes during glacial periods are known to have triggered sequential disjunctions and genetic divergences among populations, especially of coastal organisms. The Parasesarma bidens species complex so far includes three named plus potentially cryptic species of estuarine brachyuran crabs, distributed along East to Southeast Asia. The aim of the present study is to address phylogeography and uncover real and hidden biological diversity within this complex, by revealing the underlying genetic structure of populations and species throughout their distribution ranges from Japan to West Papua, with a comparison of mitochondrial COX1 and 16S rRNA gene sequences. Our results reveal that the P. bidens species complex consists of at least five distinct clades, resulting from four main cladogenesis events during the mid to late Pleistocene. Among those clades, P. cricotum and P. sanguimanus are recovered as monophyletic taxa. Geographically restricted endemic clades are encountered in southeastern Indonesia, Japan and China respectively, whereas the Philippines and Taiwan share two clades. As individuals of the Japanese clade can also be found in Taiwan, we provide evidence of a third lineage and the occurrence of a potential cryptic species on this island. Ocean level retreats during Pleistocene ice ages and present oceanic currents appear to be the main triggers for the divergences of the five clades that are here addressed as the P. bidens complex. Secondary range expansions converted Taiwan into the point of maximal overlap, sharing populations with Japan and the Philippines, but not with mainland China.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

“…Such genetic disconnections and locally structured patterns are also common among partly pelagic [ 19 ] and meroplanktonic (e.g. coastal crabs with planktonic larvae) species [ 20 ].…”

Section: Introductionmentioning

confidence: 99%