Tracking the invasive history of the green alga Codium fragile ssp. tomentosoides
Authors: Provan, J., Murphy, S. and Maggs, C.A.
Journal: Molecular Ecology
Volume: 14
Issue: 1
Pages: 189-194
ISSN: 0962-1083
DOI: 10.1111/j.1365-294X.2004.02384.x
Abstract:The spread of nonindigenous species into new habitats is having a drastic effect on natural ecosystems and represents an increasing threat to global biodiversity. In the marine environment, where data on the movement of invasive species is scarce, the spread of alien seaweeds represents a particular problem. We have employed a combination of plastid microsatellite markers and DNA sequence data from three regions of the plastid genome to trace the invasive history of the green alga Codium fragile ssp. tomentosoides. Extremely low levels of genetic variation were detected, with only four haplotypes present in the species' native range in Japan and only two of these found in introduced populations. These invasive populations displayed a high level of geographical structuring of haplotypes, with one haplotype localized in the Mediterranean and the other found in Northwest Atlantic, northern European and South Pacific populations. Consequently, we postulate that there have been at least two separate introductions of C. fragile ssp. tomentosoides from its native range in the North Pacific.
Source: Scopus
Tracking the invasive history of the green alga Codium fragile ssp. tomentosoides.
Authors: Provan, J., Murphy, S. and Maggs, C.A.
Journal: Mol Ecol
Volume: 14
Issue: 1
Pages: 189-194
ISSN: 0962-1083
DOI: 10.1111/j.1365-294X.2004.02384.x
Abstract:The spread of nonindigenous species into new habitats is having a drastic effect on natural ecosystems and represents an increasing threat to global biodiversity. In the marine environment, where data on the movement of invasive species is scarce, the spread of alien seaweeds represents a particular problem. We have employed a combination of plastid microsatellite markers and DNA sequence data from three regions of the plastid genome to trace the invasive history of the green alga Codium fragile ssp. tomentosoides. Extremely low levels of genetic variation were detected, with only four haplotypes present in the species' native range in Japan and only two of these found in introduced populations. These invasive populations displayed a high level of geographical structuring of haplotypes, with one haplotype localized in the Mediterranean and the other found in Northwest Atlantic, northern European and South Pacific populations. Consequently, we postulate that there have been at least two separate introductions of C. fragile ssp. tomentosoides from its native range in the North Pacific.
Source: PubMed
Tracking the invasive history of the green alga <i>Codium fragile</i> ssp <i>tomentosoides</i>
Authors: Provan, J., Murphy, S. and Maggs, C.A.
Journal: MOLECULAR ECOLOGY
Volume: 14
Issue: 1
Pages: 189-194
eISSN: 1365-294X
ISSN: 0962-1083
DOI: 10.1111/j.1365-294X.2004.02384.x
Source: Web of Science (Lite)
Tracking the invasive history of the green alga Codium fragile ssp. tomentosoides.
Authors: Provan, J., Murphy, S. and Maggs, C.A.
Journal: Molecular ecology
Volume: 14
Issue: 1
Pages: 189-194
eISSN: 1365-294X
ISSN: 0962-1083
DOI: 10.1111/j.1365-294x.2004.02384.x
Abstract:The spread of nonindigenous species into new habitats is having a drastic effect on natural ecosystems and represents an increasing threat to global biodiversity. In the marine environment, where data on the movement of invasive species is scarce, the spread of alien seaweeds represents a particular problem. We have employed a combination of plastid microsatellite markers and DNA sequence data from three regions of the plastid genome to trace the invasive history of the green alga Codium fragile ssp. tomentosoides. Extremely low levels of genetic variation were detected, with only four haplotypes present in the species' native range in Japan and only two of these found in introduced populations. These invasive populations displayed a high level of geographical structuring of haplotypes, with one haplotype localized in the Mediterranean and the other found in Northwest Atlantic, northern European and South Pacific populations. Consequently, we postulate that there have been at least two separate introductions of C. fragile ssp. tomentosoides from its native range in the North Pacific.
Source: Europe PubMed Central