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 othus, Lepus timidus) and two individual Lepus townsendii. The three arctic hare species are closely related. All L. othus individuals form one well-supported clade, L. arcticus individuals form two well-supported clades, and L. timidus individuals are scattered throughout the phylogeny. Arctic hare distribution was altered dramatically following post-Pleistocene recession of continental ice sheets. We tested for genetic signatures of population expansion for hare populations now found in deglaciated areas. Historical demographic estimates for 12 arctic hare populations from throughout their range indicate that L. arcticus and L. othus persisted in two separate North American arctic refugia (Beringia and High Canadian Arctic) during glacial advances of the Pleistocene, while the high genetic diversity in L. timidus likely reflects multiple Eurasian refugia.
journal_name
Mol Ecoljournal_title
Molecular ecologyauthors
Waltari E,Cook JAdoi
10.1111/j.1365-294X.2005.02625.xsubject
Has Abstractpub_date
2005-09-01 00:00:00pages
3005-16issue
10eissn
0962-1083issn
1365-294Xpii
MEC2625journal_volume
14pub_type
杂志文章abstract::Hybridization among conspecifics in native and introduced habitats has important implications for biological invasions in new ecosystems. Bighead (Hypophthalmichthys nobilis) and silver carp (H. molitrix) are genetically isolated and occur in sympatry within their native range. Following their introduction to North Am...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13285
更新日期:2015-08-01 00:00:00
abstract::Host-pathogen interactions are of particular interest in studies of the interplay between population dynamics and natural selection. The major histocompatibility complex (MHC) genes of demographically fluctuating species are highly suitable markers for such studies, because they are involved in initiating the immune r...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2007.03584.x
更新日期:2007-12-01 00:00:00
abstract::Individual-based assignment tests are now standard tools in molecular ecology and have several applications, including the study of dispersal. The measurement of natal dispersal is vital to understanding the ecology of many species, yet the accuracy of assignment tests in situations where natal dispersal is common rem...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.2004.2081.x
更新日期:2004-03-01 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::We evaluate the relative effectiveness of four methods for preserving faecal samples for DNA analysis. PCR assays of fresh faecal samples collected from free-ranging baboons showed that amplification success was dependent on preservation method, PCR-product size, and whether nuclear or mitochondrial DNA was assayed. S...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.1998.00449.x
更新日期:1998-10-01 00:00:00
abstract::Microcystins (MCs) are toxic heptapeptides that are produced by filamentous cyanobacteria Planktothrix rubescens and Planktothrix agardhii via nonribosomal peptide synthesis. MCs share a common structure cyclo (-D-Alanine(1)-L-X(2)- D-erythro-beta-iso-aspartic acid(3)-L-Z(4)-Adda(5)-D-Glutamate(6)- N-methyl-dehydroala...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2006.03044.x
更新日期:2006-10-01 00:00:00
abstract::Modes and mechanisms of speciation are best studied in young species pairs. In older taxa, it is increasingly difficult to distinguish what happened during speciation from what happened after speciation. Lake Victoria cichlids in the genus Pundamilia encompass a complex of young species and polymorphic populations. On...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13838
更新日期:2017-01-01 00:00:00
abstract::Rhizosphere microbes affect plant performance, including plant resistance against insect herbivores; yet, a direct comparison of the relative influence of rhizosphere microbes versus plant genetics on herbivory levels and on metabolites related to defence is lacking. In the crucifer Boechera stricta, we tested the eff...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.14989
更新日期:2019-04-01 00:00:00
abstract::Reef corals are especially sensitive to environmental change since their survival is dependent on a delicate balance between the coral host and its algal endosymbiont. Predicting the responses of reef ecosystems to global climate change requires a detailed understanding of the diversity of both partners in this symbio...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2007.03254.x
更新日期:2007-03-01 00:00:00
abstract::Few chloroplast-based genetic studies have been undertaken for plants of mesic temperate forests in the southern hemisphere and fossil-based models have provided evidence of vegetation history only at the broadest scales in this region. This study investigates the chloroplast DNA phylogeography of Tasmannia lanceolata...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2010.04725.x
更新日期:2010-07-01 00:00:00
abstract::One of the original goals of phylogeography was to use genetic data to identify historical events that might contribute to breaks among communities. In this study, we examine the phylogeography of a common livebearing fish (Poecilia gillii) from Costa Rica. Our goal was to determine if phylogeographical breaks in this...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2009.04339.x
更新日期:2009-10-01 00:00:00
abstract::As part of a Global Biodiversity Hotspot, the conservation of Sri Lanka's endemic biodiversity warrants special attention. With 51 species (50 of them endemic) occurring in the island, the biodiversity of freshwater crabs is unusually high for such a small area (65,600 km(2)). Freshwater crabs have successfully coloni...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2009.04439.x
更新日期:2010-01-01 00:00:00
abstract::Genetic diversity in experimental, domesticated and wild populations of the related yeasts, Saccharomyces cerevisiae and Saccharomyces paradoxus, has been well described at the global scale. We investigated the population genomics of a local population on a small spatial scale to address two main questions. First, is ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13954
更新日期:2017-02-01 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::Studying hybridization has the potential to elucidate challenging questions in evolutionary biology such as the nature of adaptive genetic variation and reproductive isolation. A growing body of work highlights that the merging of divergent genomes goes beyond the reshuffling of standing variation from related species...
journal_title:Molecular ecology
pub_type: 评论,新闻
doi:10.1111/mec.14247
更新日期:2017-09-01 00:00:00
abstract::Although many sharks begin their life confined in nursery habitats, it is unknown how rapidly they disperse away from their natal area once they leave the nursery. We examine this issue in immature lemon sharks (Negaprion brevirostris) from the time they leave the nursery (approximately age 3) at a subtropical island ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2009.04289.x
更新日期:2009-08-01 00:00:00
abstract::Carrion beetles (Coleoptera, Silphidae) are well known for their behaviour of exploiting vertebrate carcasses for nutrition. While species in the subfamily Silphinae feed on large carcasses and on larvae of competing scavengers, the Nicrophorinae are unique in monopolizing, burying and defending small carrion, and pro...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12469
更新日期:2014-03-01 00:00:00
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 (Ma...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2011.05389.x
更新日期:2012-02-01 00:00:00
abstract::Many insect groups have obligate associations with primary endosymbionts: mutualistic bacteria that are maternally transmitted and derived from an ancient infection. Often, the same insects are hosts to 'secondary' bacterial symbionts which are maternally transmitted but relatively labile within host lineages. To expl...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.2001.01189.x
更新日期:2001-01-01 00:00:00
abstract::Determining the genetic structure of isolated or fragmented species is of critical importance when planning a suitable conservation strategy. In this study, we use nuclear and chloroplast SSRs (simple sequence repeats) to investigate the population genetics of an extremely rare sunflower, Helianthus verticillatus Smal...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2006.02937.x
更新日期:2006-08-01 00:00:00
abstract::Two species of horned lizards are sympatric along the periphery of the Salton Trough. Phrynosoma mcallii, endemic to the trough, is of conservation concern because its limited habitat has been fragmented by human activities. A more common and widespread species, Phrynosoma platyrhinos, occurs around the periphery of t...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2006.02892.x
更新日期:2006-06-01 00:00:00
abstract::Colour vision varies within the family Atelidae (Primates, Platyrrhini), which consists of four genera with the following cladistic relationship: {Alouatta[Ateles (Lagothrix and Brachyteles)]}. Spider monkeys (Ateles) and woolly monkeys (Lagothrix) are characteristic of platyrrhine monkeys in possessing a colour visio...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2005.02822.x
更新日期:2006-02-01 00:00:00
abstract::Elucidating the complex evolutionary armory that mosquitoes deploy against insecticides is crucial to maintain the effectiveness of insecticide-based interventions. Here, we deciphered the role of a 6.5-kb structural variation (SV) in driving cytochrome P450-mediated pyrethroid resistance in the malaria vector, Anophe...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15645
更新日期:2020-11-01 00:00:00
abstract::SSCP (single-strand conformational polymorphism) is used widely in the field of human biomedicine, but its potential as a population genetics tool for the recovery of nuclear gene genealogies remains to be realized. We describe and illustrate a use for SSCP in the physical isolation of nuclear haplotypes that circumve...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.1997.00212.x
更新日期:1997-06-01 00:00:00
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journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2007.03323.x
更新日期:2007-06-01 00:00:00
abstract::Transcontinental migration is a fascinating example of how animals can respond to climatic oscillation. Yet, quantitative data on fitness components are scarce, and the resulting population genetic consequences are poorly understood. Migratory divides, hybrid zones with a transition in migratory behaviour, provide a n...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13521
更新日期:2016-06-01 00:00:00
abstract::There is a long tradition of artificially stocking lakes and rivers with fish in the hope to increase the quality and amount of fish that can be harvested. The animals used for stocking often originate in distant hatcheries or hatcheries that breed fish from remote regions. This stocking practice could have effects on...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.2002.01498.x
更新日期:2002-06-01 00:00:00
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journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.14978
更新日期:2019-02-01 00:00:00
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journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2005.02446.x
更新日期:2005-03-01 00:00:00
abstract::Insect guts are often colonized by multispecies microbial communities that play integral roles in nutrition, digestion and defence. Community composition can differ across host species with increasing dietary and genetic divergence, yet gut microbiota can also vary between conspecific hosts and across an individual's ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12607
更新日期:2014-03-01 00:00:00