Abstract
The basket clam genus, Corbicula, commonly known as the Asian clam, has become one of the most internationally high-profile and widespread aquatic invasive species. This genus is now considered to comprise a polymorphic species complex. The international invasion of Corbicula is characterised by four lineages, each fixed for one morphotype, genotype and haplotype combination: the American form (A) and European round form (R), the American form (C) and European saddle from (S), American form B, form round light colour (Rlc) and an intermediate between forms R and S known as Int. We investigated the genetic and morphometric makeup of each Irish population in order to establish which invasive lineages were present so as to identify the number of introductions to Ireland. A combination of morphometric, mitochondrial cytochrome oxidase subunit I (mtCOI) gene analysis and microsatellite markers were used to determine the invasive form at each Irish site. All Irish Corbicula samples conformed morphometrically to the invasive form A/R. All mtCOI sequences retrieved for 25 Irish individuals were identical to the international A/R form, while microsatellite markers again showed a common clustering with the international A/R forms of Corbicula. The combined approach of morphometries, total genomic DNA and microsatellite markers indicate only one form of Corbicula invaded Ireland; the international A/R form.
| Original language | English |
|---|---|
| Article number | 1652 |
| Journal | Water (Switzerland) |
| Volume | 11 |
| Issue number | 8 |
| DOIs | |
| Publication status | Published - 1 Aug 2019 |
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Keywords
- Biological invasion
- Ireland
- Microsatellites
- Morphology
- MtCOI
- Veneroida
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Identification of the invasive form of Corbicula clams in Ireland. / Sheehan, Rory; Etoundi, Emilie; Minchin, Dan; Van Doninck, Karine; Lucy, Frances.
In: Water (Switzerland), Vol. 11, No. 8, 1652, 01.08.2019.Research output: Contribution to journal › Article
TY - JOUR
T1 - Identification of the invasive form of Corbicula clams in Ireland
AU - Sheehan, Rory
AU - Etoundi, Emilie
AU - Minchin, Dan
AU - Van Doninck, Karine
AU - Lucy, Frances
PY - 2019/8/1
Y1 - 2019/8/1
N2 - The basket clam genus, Corbicula, commonly known as the Asian clam, has become one of the most internationally high-profile and widespread aquatic invasive species. This genus is now considered to comprise a polymorphic species complex. The international invasion of Corbicula is characterised by four lineages, each fixed for one morphotype, genotype and haplotype combination: the American form (A) and European round form (R), the American form (C) and European saddle from (S), American form B, form round light colour (Rlc) and an intermediate between forms R and S known as Int. We investigated the genetic and morphometric makeup of each Irish population in order to establish which invasive lineages were present so as to identify the number of introductions to Ireland. A combination of morphometric, mitochondrial cytochrome oxidase subunit I (mtCOI) gene analysis and microsatellite markers were used to determine the invasive form at each Irish site. All Irish Corbicula samples conformed morphometrically to the invasive form A/R. All mtCOI sequences retrieved for 25 Irish individuals were identical to the international A/R form, while microsatellite markers again showed a common clustering with the international A/R forms of Corbicula. The combined approach of morphometries, total genomic DNA and microsatellite markers indicate only one form of Corbicula invaded Ireland; the international A/R form.
AB - The basket clam genus, Corbicula, commonly known as the Asian clam, has become one of the most internationally high-profile and widespread aquatic invasive species. This genus is now considered to comprise a polymorphic species complex. The international invasion of Corbicula is characterised by four lineages, each fixed for one morphotype, genotype and haplotype combination: the American form (A) and European round form (R), the American form (C) and European saddle from (S), American form B, form round light colour (Rlc) and an intermediate between forms R and S known as Int. We investigated the genetic and morphometric makeup of each Irish population in order to establish which invasive lineages were present so as to identify the number of introductions to Ireland. A combination of morphometric, mitochondrial cytochrome oxidase subunit I (mtCOI) gene analysis and microsatellite markers were used to determine the invasive form at each Irish site. All Irish Corbicula samples conformed morphometrically to the invasive form A/R. All mtCOI sequences retrieved for 25 Irish individuals were identical to the international A/R form, while microsatellite markers again showed a common clustering with the international A/R forms of Corbicula. The combined approach of morphometries, total genomic DNA and microsatellite markers indicate only one form of Corbicula invaded Ireland; the international A/R form.
KW - Biological invasion
KW - Ireland
KW - Microsatellites
KW - Morphology
KW - MtCOI
KW - Veneroida
UR - http://www.scopus.com/inward/record.url?scp=85070543912&partnerID=8YFLogxK
U2 - 10.3390/w11081652
DO - 10.3390/w11081652
M3 - Article
AN - SCOPUS:85070543912
VL - 11
JO - Water
JF - Water
SN - 2073-4441
IS - 8
M1 - 1652
ER -