Morphological and Genetic Traits of the First Invasive Population of the Asiatic Clam Corbicula fluminea (O.F. Müller, 1774) Naturalized in the Volga River Basin

Voroshilova, I. S.; Pryanichnikova, E. G.; Прокин, А. А.; Sabitova, R. Z.; Karabanov, D. P.; Pavlov, D. F.; Kurina, E. M.

doi:10.1134/s2075111721010148

Cited by 10 publications

(8 citation statements)

References 29 publications

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“…In addition, because these introgression events appear to occur between distinct Corbicula species, hybrid genotypes might be the cause of observed intermediate phenotypes (Pfenninger et al 2002;Pigneur et al 2014) and polyphyletic gene trees that fail to resolve taxonomy in the genus Corbicula. The taxonomy of invasive Corbicula species is particularly contentious because it has been only based on morphology and mitochondrial COI barcodes with several species' names being given including C. fluminea, C. fluminalis, C. largillierti, C. fluviatilis, and C. leana, while lacking the nuclear genotype information (e.g., Coughlan et al 2019;Crespo et al 2015;Gomes et al 2020;López-Soriano et al 2018;Minchin 2014;Patrick et al 2017;Reyna et al 2018 Voroshilova et al 2021). Some of these species' names are likely to be synonymous and therefore using this species-based nomenclature can confuse lineage identification between studies.…”

Section: Figurementioning

confidence: 99%

Substantial genetic mixing among sexual and androgenetic lineages within the clam genus Corbicula

Vastrade¹,

Etoundi²,

Bournonville³

et al. 2022

Peer Community Journal

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Occasional" sexuality occurs when a species combines clonal reproduction and genetic mixing. This strategy is predicted to combine the advantages of both asexuality and sexuality, but its actual consequences on the genetic diversity and species longevity are poorly understood. Androgenesis, a reproductive mode in which the offspring inherits its entire nuclear genome from the father, is often reported as a strictly clonal reproductive mode. Androgenesis is the predominant reproductive mode within the hermaphroditic, invasive lineages of the mollusk genus Corbicula. Their ability to reproduce clonally through androgenesis has been determinant in their invasive success, having colonized during the 20th century American and European freshwater systems, where they became notorious invaders with a widespread, global distribution. However, in androgenetic Corbicula clams, occasional genetic mixing between distinct lineages has also been observed when the sperm of one lineage fertilizes the oocyte of another one. Because of these occasional introgressions, the genetic relationships between Corbicula species remained unclear, and the biogeographic origins of the invasive androgenetic lineages have been challenging to identify. To address these issues, we analyzed the patterns of allele sharing for several nuclear and mitochondrial molecular markers among Corbicula individuals collected across both the native and invasive range. Our results show the occurrence of an allelic pool encompassing all Corbicula freshwater species worldwide, including sexual and androgenetic ones, which highlights the substantial genetic mixing within this genus. However, the differences in allele sharing patterns between invasive lineages, and the low diversity within each lineage, suggest recent, distinct biogeographic origins of invasive Corbicula androgenetic lineages. Finally, the polyploidy, high heterozygosity, and hybrid phenotypes and genotypes found in our study probably originated from hybridization events following egg parasitism between distinct Corbicula lineages. This extensive cross-lineage mixing found in Corbicula may generate nuclear diversity in an otherwise asexually reproducing species.

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Section: Figurementioning

confidence: 99%

Substantial genetic mixing among sexual and androgenetic lineages within the clam genus Corbicula

Vastrade¹,

Etoundi²,

Bournonville³

et al. 2022

Peer Community Journal

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“…The mouth area of the Shacha River can apparently act as a local pool for further distribution of this species into other streams and lakes of the Volga basin, including its major reservoirs. It should be noted that the invasive Asian clam Corbicula fluminea (Müller, 1774) also was found in the study area (Perova et al, 2017;Pryanichnikova et al, 2019;Voroshilova et al, 2021), which may indicate an invasion of an entire complex of Acknowledgements. This study was financially supported by the Russian Foundation for Basic Research within the framework of scientific project no.…”

Section: Discussionmentioning

confidence: 70%

New record of non-indigenous cladoceran Pleuroxus denticulatus Birge, 1879 (Cladocera: Chydoridae) in the European Russia

Жихарев¹,

Sinev

Шурганова³

2022

Invertzool

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Biological invasions require thorough and comprehensive research. During a field investigation in a mouth area of a tributary of the Gorky Reservoir (Middle Volga) an non-indigenous species Pleuroxus denticulatus Birge, 1879 (Crustacea: Cladocera) was encountered. It is one of most common species of Chydoridae in Canada and USA. Morphology of studied specimens fully agrees with earlier descriptions of the species. The role of the species in the zooplankton community of the mouth area river was not significant. Discovery of P. denticulatus in the mouth area of the Shacha River (Kostroma Area) is the second record of its presence in European Russia and its fourth record in the entire country. The mouth area of the Shacha River can apparently act as a local pool for further dispersion of this species into other streams and lakes of the Volga basin, including its major reservoirs.

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“…Few ctenopods and anomopods are also regarded as expanding their distribution ranges north [61,62]. Yet, no one case of cladoceran transportation from the Far East to the Volga basin was known to date, although East-Asian invaders to the Volga Basin are well-known among fishes [63,64] and their parasites [65,66], bivalve mollusks [67], freshwater crabs [68], aquatic plants [69] and other aquatic organisms [70]. However, we do not expect serious changes in the water bodies of the Volga basin due to D. korovchinskyi appearance there.…”

Section: Discussionmentioning

confidence: 99%

Genetic Signature of a Past Anthropogenic Transportation of a Far-Eastern Endemic Cladoceran (Crustacea: Daphniidae) to the Volga Basin

Karabanov

Garibian

Bekker

et al. 2021

Water

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Most studies of water flea (Crustacea: Cladocera) invasions are concentrated on a few taxa with an obvious harmful influence on native ecosystems, while our knowledge of cases of anthropogenic introduction with not-so-obvious consequences, in most other taxa, is poor. We found in the Volga basin (European Russia) a population that contained D. curvirostris Eylmann, 1887 and its hybrids with D. korovchinskyi Kotov et al. 2021. The latter taxon is endemic to the Far East and it has appeared in the Volga basin as a result of past human-mediated transportation. The population from Bakhilovo is represented by two strongly different groups of the COI haplotypes belonging, respectively, to (1) D. curvirostris and (2) D. korovchinskyi. We detected SNPs in the position 60 of the HSP-90ex3 locus and in the 195 positions of 28S rRNA locus, which differentiate two species. Part of the specimens from Bakhilovo belonged to D. curvirostris s.str., demonstrating homozygote SNP sites in two loci, but two specimens had heterozygote SNP sites in both nuclear loci. They belong to D. curvirostris x korovchinskyi hybrids. Most morphological traits of the females were characteristic of D. curvirostris. We found in some specimens some characters which could suggest their hybrid status, but this opinion is a hypothesis only, which needs to be checked on more ample material. The exact hybrid system in this pond is not known. Moreover, we have no evidences of sexual reproduction of the hybrids; they could reproduce by parthenogenesis only as is known for hybrids of the D. pulex group, or continuously crossing with parents like some members of D. longispina group. However, poor parental D. korovchinskyi was not detected in the pond either morphologically or genetically. The exact vector of its past anthropogenic transportation to the Volga is unknown. Most probably, just ephippia of D. korovchinskyi were translocated replaced from the Khabarovsk Territory to the Samara Area somehow. This is the first report on hybrids within the D. curvirostris species complex. Here, we demonstrated that accurate studies with deep resolution increase the number of revealed cryptic invasions. We expect that the number of revealed cases of cryptic interspecific invasions will grow rapidly.

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Morphological and Genetic Traits of the First Invasive Population of the Asiatic Clam Corbicula fluminea (O.F. Müller, 1774) Naturalized in the Volga River Basin

Cited by 10 publications

References 29 publications

Substantial genetic mixing among sexual and androgenetic lineages within the clam genus Corbicula

Substantial genetic mixing among sexual and androgenetic lineages within the clam genus Corbicula

New record of non-indigenous cladoceran Pleuroxus denticulatus Birge, 1879 (Cladocera: Chydoridae) in the European Russia

Genetic Signature of a Past Anthropogenic Transportation of a Far-Eastern Endemic Cladoceran (Crustacea: Daphniidae) to the Volga Basin

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