Research output: Contribution to journal › Article › peer-review
Cytogenetic study on the invasive species Gmelinoides fasciatus in the ecosystem of the Gulf of Finland. / Barabanova, Larisa; Galkina, Svetlana; Mikhailova, Elena.
In: Journal of the Marine Biological Association of the United Kingdom, Vol. 99, No. 3, 01.05.2019, p. 611-618.Research output: Contribution to journal › Article › peer-review
}
TY - JOUR
T1 - Cytogenetic study on the invasive species Gmelinoides fasciatus in the ecosystem of the Gulf of Finland
AU - Barabanova, Larisa
AU - Galkina, Svetlana
AU - Mikhailova, Elena
N1 - Publisher Copyright: Copyright © 2017 Marine Biological Association of the United Kingdom.
PY - 2019/5/1
Y1 - 2019/5/1
N2 - The amphipod Gmelinoides fasciatus from Lake Baikal is an example of a species being introduced into a number of water bodies in Russia, including the water system of North-west Russia, to expand food reserves of commercial fish. The interest in this crustacean has been attributed to its successful adaptation and expanding habitat area in the region. In order to assess the role of genetic mechanisms in adaptation to new conditions the frequency of chromosomal aberrations (ChA) at anaphase and telophase stages of mitosis in G. fasciatus embryos from six local populations of Lake Baikal and two invasive populations of the Gulf of Finland, originating from natural habitats were studied in two sequential years. The average level of ChA varied slightly between 0.95% in the samples collected in Lake Baikal and 2.9% in those from the Gulf of Finland. A significant increase in the frequency of ChA was found at two sites in Lake Baikal in 2015 and at two locations in the Gulf of Finland in 2016. First information on G. fasciatus chromosome number and constitution acquired by means of molecular cytogenetic techniques is presented and discussed. The results enable us to suggest this amphipod as a sensitive model to study possible mechanisms of biological adaptation and at the same time as a natural bioindicator of the environmental state.
AB - The amphipod Gmelinoides fasciatus from Lake Baikal is an example of a species being introduced into a number of water bodies in Russia, including the water system of North-west Russia, to expand food reserves of commercial fish. The interest in this crustacean has been attributed to its successful adaptation and expanding habitat area in the region. In order to assess the role of genetic mechanisms in adaptation to new conditions the frequency of chromosomal aberrations (ChA) at anaphase and telophase stages of mitosis in G. fasciatus embryos from six local populations of Lake Baikal and two invasive populations of the Gulf of Finland, originating from natural habitats were studied in two sequential years. The average level of ChA varied slightly between 0.95% in the samples collected in Lake Baikal and 2.9% in those from the Gulf of Finland. A significant increase in the frequency of ChA was found at two sites in Lake Baikal in 2015 and at two locations in the Gulf of Finland in 2016. First information on G. fasciatus chromosome number and constitution acquired by means of molecular cytogenetic techniques is presented and discussed. The results enable us to suggest this amphipod as a sensitive model to study possible mechanisms of biological adaptation and at the same time as a natural bioindicator of the environmental state.
KW - adaptation, Gulf of Finland, bioindication, cytogenetics, Lake Baikal, Gmelinoides fasciatus
KW - Gmelinoides fasciatus
KW - Gulf of Finland
KW - Lake Baikal
KW - adaptation
KW - bioindicator
KW - cytogenetics
UR - http://www.scopus.com/inward/record.url?scp=85025134359&partnerID=8YFLogxK
UR - http://www.mendeley.com/research/cytogenetic-study-invasive-species-gmelinoides-fasciatus-ecosystem-gulf-finland
U2 - 10.1017/S0025315417001357
DO - 10.1017/S0025315417001357
M3 - Article
AN - SCOPUS:85025134359
VL - 99
SP - 611
EP - 618
JO - Journal of the Marine Biological Association of the United Kingdom
JF - Journal of the Marine Biological Association of the United Kingdom
SN - 0025-3154
IS - 3
ER -
ID: 17005030