Is increased chromosomal diversity in house mice from Lombardy (Italy) congruent with genic divergence?
| Autor: | Josette Catalan, Janice Britton-Davidian, Claudine Montgelard |
|---|---|
| Přispěvatelé: | Centre d’Ecologie Fonctionnelle et Evolutive (CEFE), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Université Paul-Valéry - Montpellier 3 (UPVM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut de Recherche pour le Développement (IRD [France-Sud]), Institut des Sciences de l'Evolution de Montpellier (UMR ISEM), École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS)-Institut de recherche pour le développement [IRD] : UR226 |
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
0301 basic medicine
Genetics biology Robertsonian translocation Subspecies medicine.disease_cause biology.organism_classification House mouse rivers Gene flow 03 medical and health sciences [SDV.GEN.GA]Life Sciences [q-bio]/Genetics/Animal genetics 030104 developmental biology Genetic structure medicine barrier Rate of evolution House mice underdominance Underdominance gene flow divergence Ecology Evolution Behavior and Systematics Whole‐Arm Reciprocal Translocation |
| Zdroj: | Biological Journal of the Linnean Society Biological Journal of the Linnean Society, Linnean Society of London, 2016, 118 (2), pp.245-261. ⟨10.1111/bij.12739⟩ |
| ISSN: | 0024-4066 1095-8312 |
| DOI: | 10.1111/bij.12739⟩ |
| Popis: | International audience; Recent studies in metacentric (MC) populations of the house mouse, Mus musculus domesticus, singled out underdominance more so than recombination suppression as the foremost barrier to gene flow. Here, MC populations from Lombardy (Italy) were sampled to identify the nature and strength of the barriers to gene flow. The chromosomal analysis recovered the three major MC populations (abbreviated to IBIN, IGAL, both with 2n = 24 and ICRE, 2n = 22), but revealed the existence of a new one (IONE, 2n = 24) which likely derived from IGAL through a single WART (Whole‐Arm Reciprocal Translocation). This, once again, highlights the paramount role of WARTs in the chromosomal diversification of this subspecies. Contacts between MC and standard populations coincided with rivers confirming these hybrid zones as tension zones. Divergence between populations was estimated using available allozyme data. Although the overall low genetic structure globally agreed with the chromosome structure, a large variation in divergence levels was retrieved that only partially matched the underdominance degree. This disparity from expectations highlighted the additional contribution of physical barriers and geographic isolation to the differential rate of evolution of the MC populations of the house mouse. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text