Hydrographic network structure and population genetic differentiation in a vector of fasciolosis, Galba truncatula

Hurtrez‐Boussès, Sylvie; Hurtrez, Jean Emmanuel; Turpin, H.; Durand, Claudia; Durand, Patrick; Meeûs, Thierry De; Meunier, Cécile; Renaud, François

doi:10.1016/j.meegid.2010.01.005

Cited by 17 publications

(13 citation statements)

References 28 publications

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“…Many snail species show strong genetic differentiation between populations, even across small geographic distances (Hurtrez‐Boussès et al. 2010; Tian‐Bi et al. 2013).…”

Section: Introductionmentioning

confidence: 99%

“…Freshwater gastropods represent interesting models to study the effects of extrinsic factors on the population genetic structure due to their primarily sessile lifestyle (Nekola 2012). Many snail species show strong genetic differentiation between populations, even across small geographic distances (Hurtrez-Bouss es et al 2010;Tian-Bi et al 2013). However, freshwater snails often occur in high abundances (Chaine et al 2012) potentially reducing the amount of genetic drift that populations experience counteracting genetic differentiation between populations (Tibbets and Dowling 1996).…”

Section: Introductionmentioning

confidence: 99%

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Population genetic structure ofBellamya aeruginosa(Mollusca: Gastropoda: Viviparidae) in China: weak divergence across large geographic distances

Husemann

Ding

et al. 2015

Ecology and Evolution

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Bellamya aeruginosa is a widely distributed Chinese freshwater snail that is heavily harvested, and its natural habitats are under severe threat due to fragmentation and loss. We were interested whether the large geographic distances between populations and habitat fragmentation have led to population differentiation and reduced genetic diversity in the species. To estimate the genetic diversity and population structure of B. aeruginosa, 277 individuals from 12 populations throughout its distribution range across China were sampled: two populations were sampled from the Yellow River system, eight populations from the Yangtze River system, and two populations from isolated plateau lakes. We used seven microsatellite loci and mitochondrial cytochrome oxidase I sequences to estimate population genetic parameters and test for demographic fluctuations. Our results showed that (1) the genetic diversity of B. aeruginosa was high for both markers in most of the studied populations and effective population sizes appear to be large, (2) only very low and mostly nonsignificant levels of genetic differentiation existed among the 12 populations, gene flow was generally high, and (3) relatively weak geographic structure was detected despite large geographic distances between populations. Further, no isolation by linear or stream distance was found among populations within the Yangtze River system and no signs of population bottlenecks were detected. Gene flow occurred even between far distant populations, possibly as a result of passive dispersal during flooding events, zoochoric dispersal, and/or anthropogenic translocations explaining the lack of stronger differentiation across large geographic distances. The high genetic diversity of B. aeruginosa and the weak population differentiation are likely the results of strong gene flow facilitated by passive dispersal and large population sizes suggesting that the species currently is not of conservation concern.

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“…Many snail species show strong genetic differentiation between populations, even across small geographic distances (Hurtrez‐Boussès et al. 2010; Tian‐Bi et al. 2013).…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Population genetic structure ofBellamya aeruginosa(Mollusca: Gastropoda: Viviparidae) in China: weak divergence across large geographic distances

Husemann

Ding

et al. 2015

Ecology and Evolution

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“…In theory, an increase in geographical distance will be correlated with a gradual reduction of gene flow, resulting in genetic differentiation among populations, i.e. isolation‐by‐distance (Barton, Kelleher, & Etheridge, ; Hurtrez‐Bousses et al, ; Husemann, Ray, King, Hooser, & Danley, ). The geographical distance between the sampling sites GN and GZ, GN and FH, and FH and GZ were relatively short at 8 km, 12 km and 20 km, respectively; therefore, the limited genetic differentiation among sampling locations was probably not a result of isolation‐by‐distance.…”

Section: Discussionmentioning

confidence: 99%

Microsatellite analysis of genetic diversity and genetic structure of the Chinese freshwater mussel Solenaia carinata (Bivalvia: Unionidae)

Sun

Liu

Zhou

et al. 2017

Aquatic Conservation

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1. The freshwater mussels (Unionidae) in the Yangtze River basin of China are among the most diverse assemblages on Earth. Freshwater mussels provide valuable ecosystem services (e.g. natural water filtration) and economic value (shell, pearls, and food), but are experiencing global declines as a result of pollution, habitat alteration, and overharvest.2. Despite the diversity and value of freshwater mussels in the Yangtze River basin, relatively little is known about the biology of the many species endemic to the region. Solenaia carinata is an endemic and potentially imperilled freshwater mussel (Bivalvia: Unionidae) in China that is distributed in a single major tributary of the middle Yangtze; the Poyang Lake basin in Jiangxi Province.3. This study represents the first analyses of the genetic diversity and population genetic structure of S. carinata. Solenaia carinata specimens (n=64) were collected from three sites in large tributary rivers of Poyang Lake. 4. Using 19 polymorphic microsatellite markers, the results showed that S. carinata had a moderate level of genetic diversity (PIC ranged from 0.464 to 0.484), limited evidence of a recent genetic bottleneck, little genetic differentiation (F ST ranged from 0.021 to 0.045), high levels of gene flow (N m ranged from 3.675 to 33.227) and limited genetic structure among the three sampling locations. 5. Given that S. carinata inhabits a highly interconnected system of large rivers and lakes, the results of low differentiation and high gene flow among geographically proximate sampling locations (sites separated by between 8 and 20 km of water) are not surprising. The resultsindicate that specimens can be used and moved from anywhere across the distribution of S. carinata for the purposes of captive propogation and translocation.

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“…For example, the mountainous landscapes caused by tectonic deformation may increase genetic divergence and result in the formation of phylogeographic breaks among natural populations by limiting their movements (Saito et al, ; Sauer, Oldeland, & Hausdorf, ; Sherpa et al, ). Strong population divergence is often observed between local snail populations as a result of either natural geographic isolation or habitat fragmentation (Hurtrez‐Bousses et al, ; Tian‐Bi, Jarne, Konan, Utzinger, & N'Goran, ). The similar situation is not uncommon in other freshwater species; the diversity of the African catfish fish is generally attributed to vicariance and geographic isolation (Day et al, ).…”

Section: Introductionmentioning

confidence: 99%

Genetic structure and phylogeographic relationships of the Bellamya complex: A nascent aquacultural snail in the Pearl River basin, China

Zhou

et al. 2020

Aquac Res

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The current genetic structure of a species is determined by both historical demographics and contemporary gene flow among populations. As an economically important snail in China, Bellamya has attracted much attention for its breeding and aquaculture and has provided a good study system for this theoretical structure. Our results showed that high genetic diversity occurred in most populations distributed in the Pearl River basin, except for the population in Nanning, Guangxi Zhuang Autonomous Region. A lack of distinct genealogical branches or geographic clades was found for the Bellamya complex across the Pearl River basin. Nevertheless, low but significant genetic structure and high differentiation were detected between Anshun (in Guizhou Province) and other geographic populations segregated by the Yunnan–Guizhou Plateau, suggesting that geographic barriers exist around this region, while this scenario was not applicable to the populations in Yuxi, Yunnan Province. The demographic history described a relatively stable pattern before the last glacial period, but the effective population sizes have drastically decreased since the late Pleistocene. The lack of genetic structure across the Pearl River basin is mainly attributed to a high level of gene flow by passive migration due to flooding and anthropogenic and animal translocation. The vicariance caused by the uplift of the Yunnan–Guizhou Plateau during the early Pleistocene likely contributed to the divergence of the plateau and plain sublineages in the Pearl River basin. A genetic diversity and phylogeography analysis are valuable to developing further guidance on breeding and conservation strategies for Bellamya germplasm resources.

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Hydrographic network structure and population genetic differentiation in a vector of fasciolosis, Galba truncatula

Cited by 17 publications

References 28 publications

Population genetic structure ofBellamya aeruginosa(Mollusca: Gastropoda: Viviparidae) in China: weak divergence across large geographic distances

Population genetic structure ofBellamya aeruginosa(Mollusca: Gastropoda: Viviparidae) in China: weak divergence across large geographic distances

Microsatellite analysis of genetic diversity and genetic structure of the Chinese freshwater mussel Solenaia carinata (Bivalvia: Unionidae)

Genetic structure and phylogeographic relationships of the Bellamya complex: A nascent aquacultural snail in the Pearl River basin, China

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