Distinct biogeographic origins of androgenetic Corbicula lineages followed by genetic captures

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Abstract

Corbicula clams were introduced during the 20th century into America and Europe, where they became notoriously successful invaders with a widespread, global distribution. Their ability to reproduce clonally through androgenesis (all-male asexuality) has been determinant in their invasive success, with only four invasive clonal lineages detected across Europe and America, one of which is very abundant and widespread on both continents. Due to their all-male asexuality and egg parasitism between distinct lineages, the evolutionary and geographic origins of the invasive androgenetic lineages have been challenging to identify. We analyzed here the patterns of allele sharing for different molecular markers among Corbicula individuals collected worldwide. We identify three distinct genetic pools containing androgenetic Corbicula lineages. While one sexual Corbicula species forms a distinct fourth genetic pool, the other sexual lineages cluster with the androgenetic ones based on shared alleles. One genetic pool contains most androgenetic lineages and sexual C. sandai from Lake Biwa in Japan, pointing to this lake as a likely origin of androgenetic Corbicula lineages. Although three distinct biogeographic origins of Corbicula androgenetic lineages have been identified, their recent radiation and cross-lineage genetic mixing hamper classical species delimitation within this clam genus.

Original languageEnglish
Article number590836
JournalbioRxiv
DOIs
Publication statusPublished - 2019

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Corbicula
clams
alleles
androgenesis
lakes
provenance
parasitism
Japan
genetic markers

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@article{e7585395da3c4e16b9f0f1894c9eb9ed,
title = "Distinct biogeographic origins of androgenetic Corbicula lineages followed by genetic captures",
abstract = "Corbicula clams were introduced during the 20th century into America and Europe, where they became notoriously successful invaders with a widespread, global distribution. Their ability to reproduce clonally through androgenesis (all-male asexuality) has been determinant in their invasive success, with only four invasive clonal lineages detected across Europe and America, one of which is very abundant and widespread on both continents. Due to their all-male asexuality and egg parasitism between distinct lineages, the evolutionary and geographic origins of the invasive androgenetic lineages have been challenging to identify. We analyzed here the patterns of allele sharing for different molecular markers among Corbicula individuals collected worldwide. We identify three distinct genetic pools containing androgenetic Corbicula lineages. While one sexual Corbicula species forms a distinct fourth genetic pool, the other sexual lineages cluster with the androgenetic ones based on shared alleles. One genetic pool contains most androgenetic lineages and sexual C. sandai from Lake Biwa in Japan, pointing to this lake as a likely origin of androgenetic Corbicula lineages. Although three distinct biogeographic origins of Corbicula androgenetic lineages have been identified, their recent radiation and cross-lineage genetic mixing hamper classical species delimitation within this clam genus.",
author = "E. Etoundi and J. Marescaux and M. Vastrade and N. Debortoli and Hedtke, {S. M.} and L.-M. Pigneur and J. Virgo and J.-F. Flot and Doninck, {K. Van}",
year = "2019",
doi = "10.1101/590836",
language = "English",
journal = "bioRxiv",

}

TY - JOUR

T1 - Distinct biogeographic origins of androgenetic Corbicula lineages followed by genetic captures

AU - Etoundi, E.

AU - Marescaux, J.

AU - Vastrade, M.

AU - Debortoli, N.

AU - Hedtke, S. M.

AU - Pigneur, L.-M.

AU - Virgo, J.

AU - Flot, J.-F.

AU - Doninck, K. Van

PY - 2019

Y1 - 2019

N2 - Corbicula clams were introduced during the 20th century into America and Europe, where they became notoriously successful invaders with a widespread, global distribution. Their ability to reproduce clonally through androgenesis (all-male asexuality) has been determinant in their invasive success, with only four invasive clonal lineages detected across Europe and America, one of which is very abundant and widespread on both continents. Due to their all-male asexuality and egg parasitism between distinct lineages, the evolutionary and geographic origins of the invasive androgenetic lineages have been challenging to identify. We analyzed here the patterns of allele sharing for different molecular markers among Corbicula individuals collected worldwide. We identify three distinct genetic pools containing androgenetic Corbicula lineages. While one sexual Corbicula species forms a distinct fourth genetic pool, the other sexual lineages cluster with the androgenetic ones based on shared alleles. One genetic pool contains most androgenetic lineages and sexual C. sandai from Lake Biwa in Japan, pointing to this lake as a likely origin of androgenetic Corbicula lineages. Although three distinct biogeographic origins of Corbicula androgenetic lineages have been identified, their recent radiation and cross-lineage genetic mixing hamper classical species delimitation within this clam genus.

AB - Corbicula clams were introduced during the 20th century into America and Europe, where they became notoriously successful invaders with a widespread, global distribution. Their ability to reproduce clonally through androgenesis (all-male asexuality) has been determinant in their invasive success, with only four invasive clonal lineages detected across Europe and America, one of which is very abundant and widespread on both continents. Due to their all-male asexuality and egg parasitism between distinct lineages, the evolutionary and geographic origins of the invasive androgenetic lineages have been challenging to identify. We analyzed here the patterns of allele sharing for different molecular markers among Corbicula individuals collected worldwide. We identify three distinct genetic pools containing androgenetic Corbicula lineages. While one sexual Corbicula species forms a distinct fourth genetic pool, the other sexual lineages cluster with the androgenetic ones based on shared alleles. One genetic pool contains most androgenetic lineages and sexual C. sandai from Lake Biwa in Japan, pointing to this lake as a likely origin of androgenetic Corbicula lineages. Although three distinct biogeographic origins of Corbicula androgenetic lineages have been identified, their recent radiation and cross-lineage genetic mixing hamper classical species delimitation within this clam genus.

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DO - 10.1101/590836

M3 - Article

JO - bioRxiv

JF - bioRxiv

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ER -