“Genetic polymorphism in natural populations of Mammals - origin, importance and effects of B chromosomes” (MNTRRS No 1693) funded by Serbian Ministry of Science

Link to this page

“Genetic polymorphism in natural populations of Mammals - origin, importance and effects of B chromosomes” (MNTRRS No 1693) funded by Serbian Ministry of Science

Authors

Publications

Are frequences of B chromosomes in populations of yellow-necked mouse, Apodemus flavicollis, influenced with type of habitat?

Blagojević, Jelena; Jojić, Vida; Bugarski-Stanojević, Vanja; Adnađević, Tanja; Vujošević, Mladen

(Associazione Teriologica Italiana, 2006)

TY  - CONF
AU  - Blagojević, Jelena
AU  - Jojić, Vida
AU  - Bugarski-Stanojević, Vanja
AU  - Adnađević, Tanja
AU  - Vujošević, Mladen
PY  - 2006
UR  - http://radar.ibiss.bg.ac.rs/handle/123456789/6947
AB  - B chromosomes (Bs) are supernumerary elements to the standard chromosome sel, characterized by a dispensable nature. They are maintained like parasites if they possess any mechanisrn of accumulation. Otherwise they must confer some selective advantage to the carriers. Poverty of evidence for a beneficial effect led to the clo1ninating opinion that Bs are genomic parasites. Populations of the yellow-necked 1nouse, Apoden1us t1avicollis, are characterized by a frequent presence of Bs, even though no mechanism for their accumulation has been found. The aim of the present work was a cornparison of the phenotypic variability of populations of A flavicollis in the context of the presence of B chromosomes.
Head morphology was compared in three populations of this species with different frequencies of animals with Bs (fB). Two of the localities (Mt. Avala, fB=0.37 and Mt. Cer, fB=0.31) are typical forest habitats and are about I00 km far fron1 each other, while the third locality (Ada, fB=0.19) is a quite different habitat located less than 5 kn1 frorn Mt. Cer. Discriminant analysis of morphological traits separated the locality Ada fron1 Mt. Avala, while the population from Mt. Cer, besides its internal variation, included variation from both other localities (Ada-like and Mt. Avala-like). The frequency of anin1als with Bs in the Ada-like group (in the Mt. Cer population) was significantly different fro1n that in the Ada population (0.19 vs. 0.43). Differences in fB, found in phcnotypically/genotypically similar groups in different habitats, point to the existence of adaptive effects of Bs at the level of populations. These adaptive effects could result from the influence of Bs on the overall genetic variability.
PB  - Associazione Teriologica Italiana
C3  - 10th International Conference on Rodent Biology: Rodens & Spatium; 2006 Jul 24-28; Parma, Italy
T1  - Are frequences of B chromosomes in populations of yellow-necked mouse, Apodemus flavicollis, influenced with type of habitat?
SP  - 29
UR  - https://hdl.handle.net/21.15107/rcub_ibiss_6947
ER  - 
@conference{
author = "Blagojević, Jelena and Jojić, Vida and Bugarski-Stanojević, Vanja and Adnađević, Tanja and Vujošević, Mladen",
year = "2006",
abstract = "B chromosomes (Bs) are supernumerary elements to the standard chromosome sel, characterized by a dispensable nature. They are maintained like parasites if they possess any mechanisrn of accumulation. Otherwise they must confer some selective advantage to the carriers. Poverty of evidence for a beneficial effect led to the clo1ninating opinion that Bs are genomic parasites. Populations of the yellow-necked 1nouse, Apoden1us t1avicollis, are characterized by a frequent presence of Bs, even though no mechanism for their accumulation has been found. The aim of the present work was a cornparison of the phenotypic variability of populations of A flavicollis in the context of the presence of B chromosomes.
Head morphology was compared in three populations of this species with different frequencies of animals with Bs (fB). Two of the localities (Mt. Avala, fB=0.37 and Mt. Cer, fB=0.31) are typical forest habitats and are about I00 km far fron1 each other, while the third locality (Ada, fB=0.19) is a quite different habitat located less than 5 kn1 frorn Mt. Cer. Discriminant analysis of morphological traits separated the locality Ada fron1 Mt. Avala, while the population from Mt. Cer, besides its internal variation, included variation from both other localities (Ada-like and Mt. Avala-like). The frequency of anin1als with Bs in the Ada-like group (in the Mt. Cer population) was significantly different fro1n that in the Ada population (0.19 vs. 0.43). Differences in fB, found in phcnotypically/genotypically similar groups in different habitats, point to the existence of adaptive effects of Bs at the level of populations. These adaptive effects could result from the influence of Bs on the overall genetic variability.",
publisher = "Associazione Teriologica Italiana",
journal = "10th International Conference on Rodent Biology: Rodens & Spatium; 2006 Jul 24-28; Parma, Italy",
title = "Are frequences of B chromosomes in populations of yellow-necked mouse, Apodemus flavicollis, influenced with type of habitat?",
pages = "29",
url = "https://hdl.handle.net/21.15107/rcub_ibiss_6947"
}
Blagojević, J., Jojić, V., Bugarski-Stanojević, V., Adnađević, T.,& Vujošević, M.. (2006). Are frequences of B chromosomes in populations of yellow-necked mouse, Apodemus flavicollis, influenced with type of habitat?. in 10th International Conference on Rodent Biology: Rodens & Spatium; 2006 Jul 24-28; Parma, Italy
Associazione Teriologica Italiana., 29.
https://hdl.handle.net/21.15107/rcub_ibiss_6947
Blagojević J, Jojić V, Bugarski-Stanojević V, Adnađević T, Vujošević M. Are frequences of B chromosomes in populations of yellow-necked mouse, Apodemus flavicollis, influenced with type of habitat?. in 10th International Conference on Rodent Biology: Rodens & Spatium; 2006 Jul 24-28; Parma, Italy. 2006;:29.
https://hdl.handle.net/21.15107/rcub_ibiss_6947 .
Blagojević, Jelena, Jojić, Vida, Bugarski-Stanojević, Vanja, Adnađević, Tanja, Vujošević, Mladen, "Are frequences of B chromosomes in populations of yellow-necked mouse, Apodemus flavicollis, influenced with type of habitat?" in 10th International Conference on Rodent Biology: Rodens & Spatium; 2006 Jul 24-28; Parma, Italy (2006):29,
https://hdl.handle.net/21.15107/rcub_ibiss_6947 .