Genetic differentiation of the soft shore barnacle <i>Fistulobalanus albicostatus</i> (Cirripedia: Thoracica: Balanomorpha) in the West Pacific

Chang, Yu-Chung; Chan, Joanna S. M.; Hayashi, Ryuzo; Shuto, Takuho; Tsang, Ling Ming; Chu, Ka Hou; Chan, Benny K. K.

doi:10.1111/maec.12422

Cited by 24 publications

(21 citation statements)

References 46 publications

(64 reference statements)

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“…nov. and S. grygieri evolved from a common ancestor and that the genus Synagoga exhibits the major Tethyan reliction pattern that is also characteristic of some ascothoracidans and barnacles (Newman and Ross 1971; Newman and Tomlinson 1974; Foster 1981; Kolbasov 2009; Kolbasov et al 2015). Currently, studies of diversity of Ascothoracida are still based mainly on morphological approaches, future directions can involve molecular techniques to examine cryptic diversity and population genetics of Ascothoracida (see approaches in Chai et al 2017; Chang et al 2017; Ma et al 2018; Jung et al 2018)…”

Section: Discussionmentioning

confidence: 99%

A new species of Synagoga (Crustacea, Thecostraca, Ascothoracida) parasitic in an antipatharian from Green Island, Taiwan, with notes on its morphology

Kolbasov¹,

Petrunina²,

Ho³

et al. 2019

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A new ascothoracidan species has been discovered off Taiwan in the north part of the west Pacific at SCUBA depths. Twelve specimens including both sexes of the new species, described herein as Synagoga arabesquesp. nov., were collected from colonies of the antipatharian Myriopathes cf. japonica Brook, 1889. Three previously described species of Synagoga, morphologically the least specialized ascothoracidan genus, have been found as ectoparasites of antipatharians and an alcyonarian, whereas all other records of this genus have been based on specimens collected from the marine plankton. This is the second study of a new form of Synagoga to be based on more than a few mature specimens of a single sex or on a single juvenile. Furthermore, it is the second in which SEM has been used to document the fine-scale external morphology. The position of terminal pores in the anterior pairs of the lattice organs is different in Synagoga arabesquesp. nov. than those in S. grygieri Kolbasov & Newman, 2018 and S. millipalus Grygier & Ohtsuka, 1995. Species of Synagoga are small, host-specific predators or ectoparasites of antipatharians. This genus exhibits a major Tethyan reliction pattern.

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Section: Discussionmentioning

confidence: 99%

A new species of Synagoga (Crustacea, Thecostraca, Ascothoracida) parasitic in an antipatharian from Green Island, Taiwan, with notes on its morphology

Kolbasov¹,

Petrunina²,

Ho³

et al. 2019

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“…Cyclina sinensis (Zhao, Li, Kong, Bao, & Wang, 2007;Zhao, Li, Kong, & Mao, 2009), Octopus ocellatus (L€ u et al, 2010) and Fistulobalanus albicostatus (Chang et al, 2017). Each study documented deep intraspecific divergence with spatial trends consistent with allopatric separation arising from the CDW.…”

Section: Fishmentioning

confidence: 90%

“…Category II includes five published studies on three mollusc and one crustacean species: Coelomactra antiquata (Kong, Li, & Qiu, ), Cyclina sinensis (Zhao, Li, Kong, Bao, & Wang, ; Zhao, Li, Kong, & Mao, ), Octopus ocellatus (Lü et al., ) and Fistulobalanus albicostatus (Chang et al., ). Each study documented deep intraspecific divergence with spatial trends consistent with allopatric separation arising from the CDW.…”

Section: Studies Claiming the Cdw Is A Barrier: All That Glitters Is mentioning

confidence: 99%

More than meets the eye: The barrier effect of the Yangtze River outflow

Kern

Dong

et al. 2017

Molecular Ecology

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The Yangtze (Changjiang) River enters the East China Sea with huge annual freshwater and sediment deposits. This outflow, known as the Changjiang diluted water (CDW), causes striking ecological gradients that potentially shape coastal species' distribution and differentiation. The CDW has long been rendered as a marine biogeographic boundary separating cold-temperature and warm-water faunas, but it remains unclear whether and to what extent it acts as an intraspecific barrier. Here, we synthesize published phylogeographic studies related to the CDW to address these issues. We find that the influence of the CDW on population differentiation is taxonomically variable, and even congeneric species may respond differently. In studies that claim the CDW is a phylogeographic barrier, the underlying assumptions explaining observed genetic breaks are sometimes incorrect, and some may have misinterpreted results due to conceptual confusion or insufficient geographic sampling. After excluding these studies, the remaining ones generally show shallow genetic divergence but significant population structure for coastal species across the CDW, suggesting that the CDW has not been a historically persistent barrier, but rather has acted as a filter within some species recently, probably after the last glacial maximum.

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“…This suggests that the Kuroshio Current can transport larvae sufficiently to maintain long‐range population connectivity. In contrast, genetic discontinuity between the Nansei Islands and the Japanese mainland is evident in other animals with various life cycles and PLDs, such as the ostracod Vargula hilgendorfii (free‐living adult, but poor swimming ability) (Ogoh & Ohmiya, ), the soft shore barnacle Fistulobalanus albicostatus (PLD = 5–7 days) (Chang et al, ), intertidal gastropods Mondosa perplexa and M. labio (PLD = 3 days for M. perplexa ) (Sasaki, ; Yamazaki et al, ), and a mudskipper Boleophthalmus pectinirostris (PLD = 1 month) (Chen, Hong, Chen, Wang, & Zhang, ). These observations demonstrate that genetic structure varies among species and reflects more than just pelagic duration.…”

Section: Introductionmentioning

confidence: 99%

Divergent northern and southern populations and demographic history of the pearl oyster in the western Pacific revealed with genomic SNPs

Takeuchi

Masaoka

Aoki³

et al. 2020

Evolutionary Applications

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In the open ocean without terrain boundaries, marine invertebrates with pelagic larvae can migrate long distances using ocean currents, suggesting reduced genetic diversification. Contrary to this assumption, however, genetic differentiation is often observed in marine invertebrates. In the present study, we sought to explain how population structure is established in the western Pacific Ocean, where the strong Kuroshio Current maintains high levels of gene flow from south to north, presumably promoting genetic homogeneity. We determined the population structure of the pearl oyster, Pinctada fucata, in the Indo‐Pacific Ocean using genome‐wide genotyping data from multiple sampling localities. Cluster analysis showed that the western Pacific population is distinct from that of the Indian Ocean, and that it is divided into northern (Japanese mainland) and southern (Nansei Islands, China, and Cambodia) populations. Genetic differentiation of P. fucata can be explained by geographic barriers in the Indian Ocean and a local lagoon, and by environmental gradients of sea surface temperature (SST) and oxygen concentration in the western Pacific. A genome scan showed evidence of adaptive evolution in genomic loci, possibly associated with changes in environmental factors, including SST and oxygen concentration. Furthermore, Bayesian simulation demonstrated that the past population expansion and division are congruent with ocean warming after the last glacial period. It is highly likely that the environmental gradient forms a genetic barrier that diversifies P. fucata populations in the western Pacific. This hypothesis helps to explain genetic differentiation and possible speciation of marine invertebrates.

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Genetic differentiation of the soft shore barnacle Fistulobalanus albicostatus (Cirripedia: Thoracica: Balanomorpha) in the West Pacific

Abstract: This study examined the phylogeography of the barnacle Fistulobalanus albicostatus,

Cited by 24 publications

References 46 publications

A new species of Synagoga (Crustacea, Thecostraca, Ascothoracida) parasitic in an antipatharian from Green Island, Taiwan, with notes on its morphology

A new species of Synagoga (Crustacea, Thecostraca, Ascothoracida) parasitic in an antipatharian from Green Island, Taiwan, with notes on its morphology

More than meets the eye: The barrier effect of the Yangtze River outflow

Divergent northern and southern populations and demographic history of the pearl oyster in the western Pacific revealed with genomic SNPs

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