Genomic instability in the bank vole: Population-ecological aspects

Gileva, E. A.; Rakitin, S. B.; Cheprakov, M. I.

doi:10.1134/s1067413606040096

Cited by 8 publications

(2 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2007). Although the global rat population of Baltimore appears to be quite stable, temporal and seasonal fluctuations at the local scale may result in a sampling effect or rapid overall changes in allele frequencies (Balloux & Lugon‐Moulin 2002; Gileva et al . 2006), and could explain the high allelic diversity observed within local populations (Table 2).…”

Section: Discussionmentioning

confidence: 99%

Commensal ecology, urban landscapes, and their influence on the genetic characteristics of city‐dwelling Norway rats (Rattus norvegicus)

et al. 2009

View full text Add to dashboard Cite

Movement of individuals promotes colonization of new areas, gene flow among local populations, and has implications for the spread of infectious agents and the control of pest species. Wild Norway rats (Rattus norvegicus) are common in highly urbanized areas but surprisingly little is known of their population structure. We sampled individuals from 11 locations within Baltimore, Maryland, to characterize the genetic structure and extent of gene flow between areas within the city. Clustering methods and a neighbour-joining tree based on pairwise genetic distances supported an east–west division in the inner city, and a third cluster comprised of historically more recent sites. Most individuals (~95%) were assigned to their area of capture, indicating strong site fidelity. Moreover, the axial dispersal distance of rats (62 m) fell within typical alley length. Several rats were assigned to areas 2–11.5 km away, indicating some, albeit infrequent, long-distance movement within the city. Although individual movement appears to be limited (30–150 m), locations up to 1.7 km are comprised of relatives. Moderate FST, differentiation between identified clusters, and high allelic diversity indicate that regular gene flow, either via recruitment or migration, has prevented isolation. Therefore, ecology of commensal rodents in urban areas and life-history characteristics of Norway rats likely counteract many expected effects of isolation or founder events. An understanding of levels of connectivity of rat populations inhabiting urban areas provides information about the spatial scale at which populations of rats may spread disease, invade new areas, or be eradicated from an existing area without reinvasion.

show abstract

Section: Discussionmentioning

confidence: 99%

Commensal ecology, urban landscapes, and their influence on the genetic characteristics of city‐dwelling Norway rats (Rattus norvegicus)

et al. 2009

View full text Add to dashboard Cite

show abstract

“…Age Sex Site (origin) Site (assigned) scales may rapidly change allele frequencies (Balloux & Lugon-Moulin 2002;Gileva et al 2006). The presence of unrelated juveniles and adults captured from the same household could reflect colony instability that for the Pau de Lima sites, could have been aggravated by rodenticide poisoning in the 2 years before the samples were collected and could have permitted burrow recolonization by unrelated rats from other neighbourhoods.…”

Section: Samplementioning

confidence: 99%

Urban population genetics of slum‐dwelling rats (Rattus norvegicus) in Salvador, Brazil

et al. 2013

View full text Add to dashboard Cite

Throughout the developing world, urban centers with sprawling slum settlements are rapidly expanding and invading previously forested ecosystems. Slum communities are characterized by untended refuse, open sewers, and overgrown vegetation, which promote rodent infestation. Norway rats (Rattus norvegicus), are reservoirs for epidemic transmission of many zoonotic pathogens of public health importance. Understanding the population ecology of R. norvegicus is essential to formulate effective rodent control strategies, as this knowledge aids estimation of the temporal stability and spatial connectivity of populations. We screened for genetic variation, characterized the population genetic structure, and evaluated the extent and patterns of gene flow in the urban landscape using 17 microsatellite loci in 146 rats from 9 sites in the city of Salvador, Brazil. These sites were divided between three neighborhoods within the city spaced an average of 2.7 km apart. Surprisingly, we detected very little relatedness among animals trapped at the same site and found high levels of genetic diversity, as well as structuring across small geographic distances. Most FST comparisons among sites were statistically significant, including sites <400 m apart. Bayesian analyses grouped the samples in three genetic clusters, each associated with distinct sampling sites from different neighborhoods or valleys within neighborhoods. These data indicate the existence of complex genetic structure in R. norvegicus in Salvador, linked to the heterogeneous urban landscape. Future rodent control measures need to take into account the spatial and temporal linkage of rat populations in Salvador, as revealed by genetic data, to develop informed eradication strategies.

show abstract

Assessment of chromosome aberrations in large Japanese field mice (Apodemus speciosus) in Namie Town, Fukushima

Fujishima

Nakata

Ujiie

et al. 2020

International Journal of Radiation Biology

View full text Add to dashboard Cite

Genomic instability in the bank vole: Population-ecological aspects

Cited by 8 publications

References 14 publications

Commensal ecology, urban landscapes, and their influence on the genetic characteristics of city‐dwelling Norway rats (Rattus norvegicus)

Commensal ecology, urban landscapes, and their influence on the genetic characteristics of city‐dwelling Norway rats (Rattus norvegicus)

Urban population genetics of slum‐dwelling rats (Rattus norvegicus) in Salvador, Brazil

Assessment of chromosome aberrations in large Japanese field mice (Apodemus speciosus) in Namie Town, Fukushima

Contact Info

Product

Resources

About