Abstract:
:American marten (Martes americana) have a close association with mature temperate forests, a habitat that expanded throughout the Pacific Northwest as glaciers receded at the end of the Pleistocene. Similar to several other forest-associated mammals in North America (e.g. black bear), genetic analysis of the marten shows a deep phylogeographical subdivision that reflects populations with distinctive evolutionary histories. Using a suite of 14 microsatellite markers, we explored the genetic structure of marten populations in two reciprocally monophyletic clades in the Pacific Northwest identified previously as M. caurina and M. americana by mitochondrial haplotypes and morphology. Microsatellite phylogeographical patterns were congruent with mitochondrial analyses. These independent data sets shed light upon hybridization patterns, population structure and evolutionary histories. Hybridization between M. caurina and M. americana individuals was documented in two regions of sympatry (Kuiu Island in southeastern Alaska and southern Montana). Northern insular populations of M. caurina exhibited higher differentiation and lower variability relative to northern populations of M. americana. Greater divergence among M. caurina populations may reflect longer isolation and persistence in coastal forest habitat that was fragmented by rising sea level in the early Holocene. Lower differentiation among northern M. americana populations and close relationship to other continental M. americana populations may reflect more recent expansion into the Pacific Northwest and/or continued gene flow among populations. Differentiation among M. caurina populations was attributed to habitat fragmentation (i.e. rising sea level), as opposed to isolation-by-distance; oceanic straits pose significant barriers to gene flow among M. caurina populations and between populations of M. caurina and M. americana.
journal_name
Mol Ecoljournal_title
Molecular ecologyauthors
Small MP,Stone KD,Cook JAdoi
10.1046/j.1365-294x.2003.01720.xsubject
Has Abstractpub_date
2003-01-01 00:00:00pages
89-103issue
1eissn
0962-1083issn
1365-294Xpii
1720journal_volume
12pub_type
杂志文章abstract::Variation in the nucleotide sequence of the mitochondrial control region (250 bp) and the cytochrome b region (870 bp) was examined in collared lemmings (Dicrostonyx groenlandicus) from 19 localities in northern Alaska and the Canadian Arctic. The division of D. groenlandicus in two phylogeographical groups with limit...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.2000.00853.x
更新日期:2000-03-01 00:00:00
abstract::Recently evolved species typically share genetic variation across their genomes due to incomplete lineage sorting and/or ongoing gene flow. Given only subtle allele frequency differences at most loci and the expectation that divergent selection may affect only a tiny fraction of the genome, distinguishing closely rela...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15091
更新日期:2019-05-01 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::Hypotheses of diversification in eastern North American freshwater fishes have focused primarily on allopatric distributions of species between disjunct highland areas and major river systems. However, these hypotheses do not fully explain the rich diversity of species within highland regions and river systems. Relati...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2010.04866.x
更新日期:2010-11-01 00:00:00
abstract::The population structure of the giant mottled eel, Anguilla marmorata, was investigated with mitochondrial and microsatellite DNA analyses using 449 specimens from 13 localities throughout the species range. Control region F-statistics indicated the North Pacific (Japan, Taiwan, Philippines, Sulawesi), South Pacific (...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2008.03822.x
更新日期:2008-07-01 00:00:00
abstract::Most relatives of the self-fertilizing hermaphroditic nematode model organism Caenorhabditis elegans reproduce via obligate outbreeding between males and females, which also represents the ancestral mode of reproduction within the genus. However, little is known about the scope of genetic diversity and differentiation...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2010.04862.x
更新日期:2010-11-01 00:00:00
abstract::The level of integration between associated partners can range from ectosymbioses to extracellular and intracellular endosymbioses, and this range has been assumed to reflect a continuum from less intimate to evolutionarily highly stable associations. In this study, we examined the specificity and evolutionary history...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13554
更新日期:2016-07-01 00:00:00
abstract::The Haute Island mouflon (Ovis aries) population is isolated on one small (6.5 km2) island of the remote Kerguelen archipelago. Given a promiscuous mating system, a cyclic demography and a strong female-biased sex ratio after population crashes, we expected a low effective population size (Ne). We estimated Ne using d...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2007.03501.x
更新日期:2007-11-01 00:00:00
abstract::Many vertebrates form monogamous pairs to mate and care for their offspring. However, genetic tools have increasingly shown that offspring often arise from matings outside of the monogamous pair bond. Social monogamy is relatively common in coral reef fishes, but there have been few studies that have confirmed monogam...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.15103
更新日期:2019-05-01 00:00:00
abstract::The evolutionary processes and genetics underlying local adaptation at a specieswide level are largely unknown. Recent work has indicated that a frameshift mutation in a member of a family of transcription factors, C-repeat binding factors or CBFs, underlies local adaptation and freezing tolerance divergence between t...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.13711
更新日期:2016-08-01 00:00:00
abstract::The spread of transgenes into the genome of wild soybean is a concern when transgenic and wild soybeans are planted sympatrically. The objectives of this study were to investigate the origin and fate of morphological intermediates between wild and cultivated soybeans in their natural habitats in Japan. Twenty nuclear ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2010.04636.x
更新日期:2010-06-01 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::The Leptynia hispanica stick insect species complex includes bisexuals, triploid and tetraploid parthenogenetic populations, suggesting that polyploidy has played a central role in the evolution of this complex. An analysis of karyotype, mitochondrial DNA (cox2) and nuclear DNA (ef1-alpha) markers was carried out to c...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2007.03471.x
更新日期:2007-10-01 00:00:00
abstract::The formal testing of mating system theories with empirical data is important for evaluating the relative importance of different processes in shaping mating systems in wild populations. Here, we present a generally applicable probability modelling framework to test the role of local mate availability in determining a...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2011.05252.x
更新日期:2012-02-01 00:00:00
abstract::Over the past 100 years, Arctic temperatures have increased at almost twice the global average rate. One consequence is the acceleration of glacier retreat, exposing new habitats that are colonized by microorganisms whose diversity and function are unknown. Here, we characterized bacterial diversity along two approxim...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2009.04479.x
更新日期:2010-03-01 00:00:00
abstract::Since 2005, advances in next-generation sequencing technologies have revolutionized biological science. The analysis of environmental DNA through the use of specific gene markers such as species-specific DNA barcodes has been a key application of next-generation sequencing technologies in ecological and environmental ...
journal_title:Molecular ecology
pub_type: 杂志文章,评审
doi:10.1111/j.1365-294X.2012.05538.x
更新日期:2012-04-01 00:00:00
abstract::Root-associated fungi, particularly ectomycorrhizal fungi (EMF), are critical symbionts of all boreal tree species. Although climatically driven increases in wildfire frequency and extent have been hypothesized to increase vegetation transitions from tundra to boreal forest, fire reduces mycorrhizal inoculum. Therefor...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.14143
更新日期:2017-07-01 00:00:00
abstract::The objective of this study was to assess the spatiotemporal distribution of four landlocked Atlantic salmon (Salmo salar) populations during their sympatric feeding phase in lake St-Jean (Québec, Canada). A total of 1100 fish captured over a period of 25 years was genotyped at six microsatellite loci in order to asse...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.0962-1083.2001.01374.x
更新日期:2001-10-01 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::In cooperatively breeding species, restricted dispersal of offspring leads to clustering of closely related individuals, increasing the potential both for indirect genetic benefits and inbreeding costs. In apostlebirds (Struthidea cinerea), philopatry by both sexes results in the formation of large (up to 17 birds), p...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2006.03009.x
更新日期:2006-10-01 00:00:00
abstract::Male nuptial colour hues are important for the maintenance of reproductive isolation among cichlid fish species, and environmental changes that lead to narrower light spectra can lead to hybridization. However, cichlid species can naturally co-occur in narrow light spectrum habitats, such as turbid shallow lakes and t...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2006.03173.x
更新日期:2007-02-01 00:00:00
abstract::The Socotra Archipelago is an ancient continental fragment of Gondwanan origin and one of the most isolated landforms on Earth and a biodiversity hot spot. Yet, the biogeography and evolutionary history of its endemic fauna still remain largely overlooked. We investigate the origin, tempo and mode of diversification i...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2012.05672.x
更新日期:2012-08-01 00:00:00
abstract::The capercaillie inhabits a continuous range in large parts of the Palearctic boreal forest, but is patchily distributed in temperate Europe. An ongoing population decline, largely related to human land use changes, has been most pronounced in central and western Europe, where some local populations have become extinc...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.2003.01873.x
更新日期:2003-07-01 00:00:00
abstract::Black rats are major invasive vertebrate pests with severe ecological, economic and health impacts. Remarkably, their evolutionary history has received little attention, and there is no firm agreement on how many species should be recognized within the black rat complex. This species complex is native to India and Sou...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/mec.12149
更新日期:2013-02-01 00:00:00
abstract::The Southern Ocean contains some of the most isolated islands on Earth, and fundamental questions remain regarding their colonization and the connectivity of their coastal biotas. Here, we conduct a genetic investigation into the Cellana strigilis (limpet) complex that was originally classified based on morphological ...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2011.05185.x
更新日期:2011-08-01 00:00:00
abstract::The California Floristic Province harbours more endemic plant and animal taxa and more identifiable subspecies than any other area of comparable size in North America. We present evidence that physical historical processes have resulted in congruent patterns of genetic diversity over the past 2-10 million years. Using...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1046/j.1365-294x.2003.01794.x
更新日期:2003-04-01 00:00:00
abstract::Diet strongly influences the intestinal microbial communities through species sorting. Alternatively, these communicates may differ because of chance variation in local microbial exposures or species losses among allopatric host populations (i.e. ecological drift). We investigated how these forces shape enteric commun...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2012.05502.x
更新日期:2012-04-01 00:00:00
abstract::There is growing interest in understanding patterns of seasonal migratory connectivity between breeding and wintering sites, both because differences in migratory behaviour can be associated with population differentiation and because knowledge of migratory connectivity is essential for understanding the ecology, evol...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2011.05159.x
更新日期:2011-08-01 00:00:00
abstract::Formation of partially reproductively isolated ecotypes in the rough periwinkle, Littorina saxatilis, may be a case of incipient nonallopatric ecological speciation. To better understand the dynamics of ecotype formation, its timescale, driving forces and evolutionary consequences, we developed a spatially explicit, i...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2009.04320.x
更新日期:2009-10-01 00:00:00
abstract::To reveal the phylogeographical patterns of four species of coastal tiger beetles in Japan (Lophyridia angulata, Abroscelis anchoralis, Cicindela lewisii and Chaetodera laetescripta), we conducted phylogenetic and nested clade analysis (NCA) using the mitochondrial DNA sequences of two loci (COI and 16S rRNA), with sp...
journal_title:Molecular ecology
pub_type: 杂志文章
doi:10.1111/j.1365-294X.2004.02274.x
更新日期:2004-10-01 00:00:00