Abstract:
:Individuals are generally predicted to avoid inbreeding because of detrimental fitness effects. However, several recent studies have shown that limited inbreeding is tolerated by some vertebrate species. Here, we examine the costs and benefits of inbreeding in a largely polygynous rodent, the yellow-bellied marmot (Marmota flaviventris). We use a pedigree constructed from 8 years of genetic data to determine the relatedness of all marmots in our study population and examine offspring survival, annual male reproductive success, relatedness between breeding pairs and the effects of group composition on likelihood of male reproduction to assess inbreeding in this species. We found decreased survival in inbred offspring, but equal net reproductive success among males that inbred and those that avoided it. Relatedness between breeding pairs was greater than that expected by chance, indicating that marmots do not appear to avoid breeding with relatives. Further, male marmots do not avoid inbreeding: males mate with equal frequency in groups composed of both related and unrelated females and in groups composed of only female relatives. Our results demonstrate that inbreeding can be tolerated in a polygynous species if the reproductive costs of inbreeding are low and individuals that mate indiscriminately do not suffer decreased reproductive success.
journal_name
Mol Ecoljournal_title
Molecular ecologyauthors
Olson LE,Blumstein DT,Pollinger JR,Wayne RKdoi
10.1111/j.1365-294X.2011.05389.xsubject
Has Abstractpub_date
2012-02-01 00:00:00pages
562-71issue
3eissn
0962-1083issn
1365-294Xjournal_volume
21pub_type
杂志文章abstract::Divergent host use has long been suspected to drive population differentiation and speciation in plant-feeding insects. Evaluating the contribution of divergent host use to genetic differentiation can be difficult, however, as dispersal limitation and population structure may also influence patterns of genetic variati...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13972
更新日期:2017-02-01 00:00:00
abstract::An isolated population of dark-eyed juncos, Junco hyemalis, became established on the campus of the University of California at San Diego (UCSD), probably in the early 1980s. It now numbers about 70 breeding pairs. Populations across the entire natural range of the subspecies J. h. thurberi are weakly differentiated f...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.2004.02104.x
更新日期:2004-03-01 00:00:00
abstract::It is challenging to unravel the history of organisms with highly scattered populations. Such species may have fragmented distributions because extant populations are remnants of a previously more continuous range, or because the species has narrow habitat requirements in combination with good dispersal capacity (natu...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12313
更新日期:2013-06-01 00:00:00
abstract::The declining health of coral reefs worldwide is likely to intensify in response to continued anthropogenic disturbance from coastal development, pollution, and climate change. In response to these stresses, reef-building corals may exhibit bleaching, which marks the breakdown in symbiosis between coral and zooxanthel...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2008.03879.x
更新日期:2008-09-01 00:00:00
abstract::White clover is polymorphic for cyanogenesis (HCN production after tissue damage), and this herbivore defence polymorphism has served as a classic model for studying adaptive variation. The cyanogenic phenotype requires two interacting biochemical components; the presence/absence of each component is controlled by a s...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2012.05486.x
更新日期:2012-05-01 00:00:00
abstract::The question of whether spatial aspects of evolution differ in marine versus terrestrial realms has endured since Ernst Mayr's 1954 essay on marine speciation. Marine systems are often suggested to support larger and more highly connected populations, but quantitative comparisons with terrestrial systems have been lac...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15726
更新日期:2020-11-10 00:00:00
abstract::Plasticity allows for changes in phenotype in response to environmental cues, often facilitating local adaptation to seasonal environments. Phenotypic plasticity alone, however, may not always be sufficient to ensure adaptation to new localities. In particular, changing cues associated with shifting seasonal regimes m...
journal_title:Molecular ecology
pub_type: 评论,杂志文章
doi:10.1111/j.1365-294X.2011.05215.x
更新日期:2011-09-01 00:00:00
abstract::Ecosystems across the globe are threatened by climate change and human activities. New rapid survey approaches for monitoring biodiversity would greatly advance assessment and understanding of these threats. Taking advantage of next-generation DNA sequencing, we tested an approach we call metabarcoding: high-throughpu...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2012.05545.x
更新日期:2012-08-01 00:00:00
abstract::Biological invasions usually start with a small number of founder individuals. These founders are likely to represent a small fraction of the total genetic diversity found in the source population. Our study set out to trace genetically the geographical origin of the horse-chestnut leafminer, Cameraria ohridella, an i...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2009.04290.x
更新日期:2009-08-01 00:00:00
abstract::Niche partitioning through foraging is a mechanism likely involved in facilitating the coexistence of ecologically similar and co-occurring animal species by separating their use of resources. Yet, this mechanism is not well understood in flying insectivorous animals. This is particularly true of bats, where many ecol...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.14508
更新日期:2018-03-01 00:00:00
abstract::Genetic differentiation in thermal adaptation can result from a trade-off between the performance of organisms across different temperatures or from the accumulation of deleterious mutations. In this experiment, we assayed thermal sensitivity of 138 genetically distinct Mycosphaerella graminicola isolates sampled from...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2011.05023.x
更新日期:2011-04-01 00:00:00
abstract::Bemisia tabaci (Hemiptera: Aleyrodidae) is a haplo-diploid species of sap-feeding insect belonging to the group of insects commonly known as whiteflies. From earlier analyses of mitochondrial and ribosomal markers it has been concluded that in the Asia-Pacific region there were three major indigenous races as well as ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2005.02700.x
更新日期:2005-10-01 00:00:00
abstract::Anthropogenic global climate change is expected to cause severe range contractions among alpine plants. Alpine areas in the Mediterranean region are of special concern because of the high abundance of endemic species with narrow ranges. This study combined species distribution models, population structure analyses and...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12383
更新日期:2013-08-01 00:00:00
abstract::Gene flow among incipient species can act as a creative or destructive force in the speciation process, generating variation on which natural selection can act while, potentially, undermining population divergence. The flowering plant genus Carex exhibits a rapid and relatively recent radiation with many species limit...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.14253
更新日期:2017-10-01 00:00:00
abstract::Most emerging pathogens of humans can infect multiple host species (Woolhouse & Gowtage-Sequeria, 2005). This simple fact has motivated multiple large-scale, comparative analyses of the drivers of pathogen sharing and zoonotic pathogen richness among hosts as well as the factors determining the zoonotic potential of p...
journal_title:Molecular ecology
pub_type: 评论,新闻
doi:10.1111/mec.15573
更新日期:2020-09-01 00:00:00
abstract::We reanalysed published data to evaluate whether climate and habitat are barriers to dispersal in one of the most mobile and widely distributed mammals, the grey wolf (Canis lupus). Distance-based redundancy analysis (dbRDA) was used to examine the amount of variation in genetic distances that could be explained by an...
journal_title:Molecular ecology
pub_type: 杂志文章,meta分析
doi:10.1111/j.1365-294X.2004.02244.x
更新日期:2004-08-01 00:00:00
abstract::Sky islands provide ideal opportunities for understanding how climatic changes associated with Pleistocene glacial cycles influenced species distributions, genetic diversification, and demography. The salamander Plethodon ouachitae is largely restricted to high-elevation, mesic forest on six major mountains in the Oua...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2008.03998.x
更新日期:2008-12-01 00:00:00
abstract::While microsatellites have been used to examine genetic structure in local populations of Neotropical trees, genetic studies based on such high-resolution markers have not been carried out for Mesoamerica as a whole. Here we assess the genetic structure of the Mesoamerican mahogany Swietenia macrophylla King (big-leaf...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.2003.01951.x
更新日期:2003-11-01 00:00:00
abstract::Classification, phylogeography and the testing of evolutionary hypotheses rely on correct estimation of species phylogeny. Early molecular phylogenies often relied on mtDNA alone, which acts as a single linkage group with one history. Over the last decade, the use of multiple nuclear sequences has often revealed confl...
journal_title:Molecular ecology
pub_type: 杂志文章,评审
doi:10.1111/mec.14096
更新日期:2017-06-01 00:00:00
abstract::Nucleotide variation in an approximately 490 bp fragment of the mitochondrial DNA control region (mtDNA CR) was used to describe the genetic variation and phylogeographical pattern in the Eurasian beaver (Castor fiber) over its entire range. The sampling effort was focused on the relict populations that survived a dra...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2005.02704.x
更新日期:2005-10-01 00:00:00
abstract::Molecular gut-content analysis enables detection of arthropod predation with minimal disruption of ecosystem processes. Most assays produce only qualitative results, with each predator testing either positive or negative for target prey remains. Nevertheless, they have yielded important insights into community process...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12552
更新日期:2014-08-01 00:00:00
abstract::Phylogeographic structure of the eastern pine processionary moth Thaumetopoea wilkinsoni was explored in this study by means of nested clade phylogeographic analyses of COI and COII sequences of mitochondrial DNA and Bayesian estimates of divergence times. Intraspecific relationships were inferred and hypotheses teste...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2007.03302.x
更新日期:2007-06-01 00:00:00
abstract::The zebra mussel, Dreissena polymorpha (Pallas), a bivalve species originally native to the Black and Caspian seas, has invaded Ireland in the last decade. Five microsatellite loci were used to investigate genetic diversity and population structure in 10 populations across Europe (Ireland, UK, the Netherlands and Roma...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2005.02530.x
更新日期:2005-05-01 00:00:00
abstract::Phylogeographical investigations of arctic organisms provide spatial and temporal frameworks for interpreting the role of climate change on biotic diversity in high-latitude ecosystems. Phylogenetic analyses were conducted on 473 base pairs of the mitochondrial control region in 192 arctic hares (Lepus arcticus, Lepus...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2005.02625.x
更新日期:2005-09-01 00:00:00
abstract::Accurate detection of offspring resulting from hybridization between individuals of distinct populations has a range of applications in conservation and population genetics. We assessed the hybrid identification efficiency of two methods (implemented in the STRUCTURE and NEWHYBRIDS programs) which are tailored to iden...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2005.02773.x
更新日期:2006-01-01 00:00:00
abstract::The population structure of variation in a nuclear actin intron and the control region of mitochondrial DNA is described for humpback whales from eight regions in the North Pacific Ocean: central California, Baja Peninsula, nearshore Mexico (Bahia Banderas), offshore Mexico (Socorro Island), southeastern Alaska, centr...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.1998.00384.x
更新日期:1998-06-01 00:00:00
abstract::Army ants are among the top arthropod predators and considered keystone species in tropical ecosystems. During daily mass raids with many thousand workers, army ants hunt live prey, likely exerting strong top-down control on prey species. Many tropical sites exhibit a high army ant species diversity (>20 species), sug...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15078
更新日期:2019-05-01 00:00:00
abstract::Most emerging pathogens can infect multiple species, underlining the importance of understanding the ecological and evolutionary factors that allow some hosts to harbour greater infection prevalence and share pathogens with other species. However, our understanding of pathogen jumps is based primarily around viruses, ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15422
更新日期:2020-04-01 00:00:00
abstract::Within the framework of landscape genetics, resistance surface modelling is particularly relevant to explicitly test competing hypotheses about landscape effects on gene flow. To investigate how fragmentation of tropical forest affects population connectivity in a forest specialist bird species, we optimized resistanc...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.14233
更新日期:2017-10-01 00:00:00
abstract::Understanding genomic signatures of divergent selection underlying long-term adaptation in populations located in heterogeneous environments is a key goal in evolutionary biology. In this study, we investigated neutral, adaptive and deleterious genetic variation using 7,192 SNPs in 31 Lake Trout (Salvelinus namaycush)...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.14361
更新日期:2017-11-01 00:00:00