Gynodioecy in structured populations: understanding fine-scale sex ratio variation in Beta vulgaris ssp. maritima.

abstract：:Implementation of the coalescent model in a Bayesian framework is an emerging strength in genetically based species delimitation studies. By providing an objective measure of species diagnosis, these methods represent a quantitative enhancement to the analysis of multilocus data, and complement more traditional method...

journal_title：Molecular ecology

authors： Hotaling S,Foley ME,Lawrence NM,Bocanegra J,Blanco MB,Rasoloarison R,Kappeler PM,Barrett MA,Yoder AD,Weisrock DW

更新日期：2016-05-01 00:00:00

abstract：:DNA was extracted from five coprolites, excavated in Gypsum Cave, Nevada and radiocarbon dated to approximately 11 000, 20 000 and 28 500 years BP. All coprolites contained mitochondrial DNA sequences identical to a DNA sequence determined from a bone of the extinct ground sloth Nothrotheriops shastensis. A 157-bp fra...

journal_title：Molecular ecology

authors： Hofreiter M,Poinar HN,Spaulding WG,Bauer K,Martin PS,Possnert G,Pääbo S

更新日期：2000-12-01 00:00:00

abstract：:The confounding effects of population structure complicate efforts to identify regions of the genome under the influence of selection in natural populations. Here we test for evidence of selection in three genes involved in vertebrate immune function - the major histocompatibility complex (MHC), interferon gamma (IFNG...

journal_title：Molecular ecology

authors： Worley K,Carey J,Veitch A,Coltman DW

更新日期：2006-03-01 00:00:00

abstract：:Biological invasions comprise accidental evolutionary experiments, whose genetic compositions underlie relative success, spread and persistence in new habitats. However, little is known about whether, or how, their population genetic patterns change temporally and/or spatially across the invasion's history. Theory pre...

journal_title：Molecular ecology

authors： Snyder MR,Stepien CA

更新日期：2017-02-01 00:00:00

abstract：:Biological control requires specific tools for the accurate detection and identification of natural enemies, and to detect unusual variations in their density, which may follow changes in agricultural practices. Here we have developed specific molecular markers to detect Lydella thompsoni (Herting) and Pseudoperichaet...

journal_title：Molecular ecology

authors： Agustí N,Bourguet D,Spataro T,Delos M,Eychenne N,Folcher L,Arditi R

更新日期：2005-09-01 00:00:00

abstract：:Most plant species are recent or ancient polyploids (displaying at least one round of genome duplication in their history). Cultivated species (e.g. wheat, cotton, canola, sugarcane, coffee) and invasive species are often relatively recent polyploids, and frequently of hybrid origin (i.e. allopolyploids). Despite the ...

journal_title：Molecular ecology

authors： Salmon A,Ainouche ML

更新日期：2010-01-01 00:00:00

abstract：:We investigated genetic variation in asexual polyploid members of the water flea Daphnia pulex complex from a set of 12 Bolivian high-altitude lakes. We used nuclear microsatellite markers to study genetic relationships among all encountered multilocus genotypes, and combined this with a phylogenetic approach using DN...

journal_title：Molecular ecology

authors： Mergeay J,Aguilera X,Declerck S,Petrusek A,Huyse T,De Meester L

更新日期：2008-04-01 00:00:00

abstract：:Coral reefs in the Tropical Eastern Pacific (TEP) are among the most isolated in the world. This isolation has resulted in relatively low species diversity but comparatively high endemism. The dominant reef-building corals of the TEP are the Pocillopora corals, a ubiquitous Indo-Pacific genus commonly regarded as infe...

journal_title：Molecular ecology

authors： Combosch DJ,Guzman HM,Schuhmacher H,Vollmer SV

更新日期：2008-03-01 00:00:00

abstract：:The populations of the bivalve clam Macoma balthica in the low-salinity Northern Baltic Sea represent an admixture of two strongly diverged genomic origins, the Pacific Macoma balthica balthica (approx. 60% genomic contribution) and Atlantic Macoma balthica rubra (40%). Using allozyme and mtDNA characters, we describe...

journal_title：Molecular ecology

authors： Nikula R,Strelkov P,Väinölä R

更新日期：2008-03-01 00:00:00

abstract：:Past climate change has caused shifts in species distributions and undoubtedly impacted patterns of genetic variation, but the biological processes mediating responses to climate change, and their genetic signatures, are often poorly understood. We test six species-specific biologically informed hypotheses about such ...

journal_title：Molecular ecology

authors： Bemmels JB,Title PO,Ortego J,Knowles LL

更新日期：2016-10-01 00:00:00

abstract：:The evolution of diversity in the marine ecosystem is poorly understood, given the relatively high potential for connectivity, especially for highly mobile species such as whales and dolphins. The killer whale (Orcinus orca) has a worldwide distribution, and individual social groups travel over a wide geographic range...

journal_title：Molecular ecology

authors： Moura AE,Kenny JG,Chaudhuri R,Hughes MA,J Welch A,Reisinger RR,de Bruyn PJ,Dahlheim ME,Hall N,Hoelzel AR

更新日期：2014-11-01 00:00:00

abstract：:Mutation rates at microsatellites tend to increase with the number of repeats of the motif, leading to higher levels of polymorphism at long microsatellites. To standardize levels of diversity when microsatellites differ in size, we investigate the relationship between tract length and variation and provide a formula ...

journal_title：Molecular ecology

authors： Petit RJ,Deguilloux MF,Chat J,Grivet D,Garnier-Géré P,Vendramin GG

更新日期：2005-03-01 00:00:00

abstract：:Populations of obligately estuarine taxa are potentially small and isolated and may lack genetic variation and display regional differentiation as a result of drift and inbreeding. Hybridization with a wide-ranging marine congener should introduce genetic variation and reduce the effects of inbreeding depression and g...

journal_title：Molecular ecology

authors： Roberts DG,Gray CA,West RJ,Ayre DJ

更新日期：2010-02-01 00:00:00

abstract：:Sequence variation at the intron-1 of the voltage-gated sodium channel gene in Anopheles gambiae M- and S-forms from Cameroon was assessed to explore the number of mutational events originating knockdown resistance (kdr) alleles. Mosquitoes were sampled between December 2005 and June 2006 from three geographical areas...

journal_title：Molecular ecology

authors： Etang J,Vicente JL,Nwane P,Chouaibou M,Morlais I,Do Rosario VE,Simard F,Awono-Ambene P,Toto JC,Pinto J

更新日期：2009-07-01 00:00:00

abstract：:Population decline in the federally endangered June sucker (Chasmistes liorus), a lakesucker unique to Utah Lake, Utah, has been attributed in part to hybridization with the more widespread Utah sucker (Catostomus ardens). As a group, suckers in Utah Lake exhibit considerable external morphological variation. Meristic...

journal_title：Molecular ecology

authors： Cole DD,Mock KE,Cardall BL,Crowl TA

更新日期：2008-12-01 00:00:00

abstract：:In long-lived clonal plants, the overall size of a clone is often used to estimate clone age. The size of a clone, however, might be largely determined by physical or biotic interactions, obscuring the relationship between clone size and age. Here, we use the accumulation of mutations at 14 microsatellite loci to esti...

journal_title：Molecular ecology

authors： Ally D,Ritland K,Otto SP

更新日期：2008-11-01 00:00:00

abstract：:Experimental evolution (EE) combined with whole-genome sequencing (WGS) has become a compelling approach to study the fundamental mechanisms and processes that drive evolution. Most EE-WGS studies published to date have used microbes, owing to their ease of propagation and manipulation in the laboratory and relatively...

journal_title：Molecular ecology

authors： Dettman JR,Rodrigue N,Melnyk AH,Wong A,Bailey SF,Kassen R

更新日期：2012-05-01 00:00:00

abstract：:We explore population genetic structure in phyllostomid bats (Ardops nichollsi, Brachyphylla cavernarum and Artibeus jamaicensis) from the northern Lesser Antilles by investigating the degree to which island populations are genetically differentiated. Our hypothesis, that the island populations are genetically distinc...

journal_title：Molecular ecology

authors： Carstens BC,Sullivan J,Davalos LM,Larsen PA,Pedersen SC

更新日期：2004-09-01 00:00:00

abstract：:Oryza rufipogon Griff. is the most agriculturally important but seriously endangered wild rice species. To better estimate how genetic structure can be used to obtained a conservation perspective of the species, genetic variability at six polymorphic microsatellite DNA loci was examined. High levels of genetic variabi...

journal_title：Molecular ecology

authors： Gao L

更新日期：2004-05-01 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

authors： Perrier C,Ferchaud AL,Sirois P,Thibault I,Bernatchez L

更新日期：2017-11-01 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

authors： Pagès M,Bazin E,Galan M,Chaval Y,Claude J,Herbreteau V,Michaux J,Piry S,Morand S,Cosson JF

更新日期：2013-02-01 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

authors： De Barro PJ

更新日期：2005-10-01 00:00:00

abstract：:Identifying traits that affect the reproductive success of individuals is fundamental for our understanding of evolutionary processes. In cooperative breeders, a dominant male typically restricts mating access to the dominant female for extended periods, resulting in pronounced variation in reproductive success among ...

journal_title：Molecular ecology

authors： Spong GF,Hodge SJ,Young AJ,Clutton-Brock TH

更新日期：2008-05-01 00:00:00

abstract：:The Mediterranean Sea is a two-basin system, with the boundary zone restricted to the Strait of Sicily and the narrow Strait of Messina. Two main population groups are recognized in the Mediterranean endemic seagrass Posidonia oceanica, corresponding to the Western and the Eastern basins. To address the nature of the ...

journal_title：Molecular ecology

authors： Serra IA,Innocenti AM,Di Maida G,Calvo S,Migliaccio M,Zambianchi E,Pizzigalli C,Arnaud-Haond S,Duarte CM,Serrao EA,Procaccini G

更新日期：2010-02-01 00:00:00

abstract：:The environmental and/or life history factors affecting genetic exchange in marine species with potential for high dispersal are of great interest, not only from an evolutionary standpoint but also with regard to effective management. Previous genetic studies have demonstrated substantial differentiation among populat...

journal_title：Molecular ecology

authors： Shaw PW,Arkhipkin AI,Al-Khairulla H

更新日期：2004-11-01 00:00:00

abstract：:How does one species become two? What is the relative importance of selection vs. drift? How many genes are involved, what are their effect sizes and where are they located in the genome? The answers to these questions will inevitably vary from one species to another, but by addressing these questions in a diverse arr...

journal_title：Molecular ecology

authors： Yeaman S

更新日期：2013-06-01 00:00:00

abstract：:The timing of reproduction in birds varies considerably within populations and is often under strong natural selection. Individual timing within years is dependent on a range of environmental factors in addition to having an additive genetic basis. In vertebrates, an increasing amount is known about the molecular basi...

journal_title：Molecular ecology

authors： Liedvogel M,Szulkin M,Knowles SC,Wood MJ,Sheldon BC

更新日期：2009-06-01 00:00:00

abstract：:Large-scale anthropogenic changes in the environment are reshaping global biodiversity and the evolutionary trajectory of many species. Evolutionary mechanisms that allow organisms to thrive in this rapidly changing environment are just beginning to be investigated (Hoffmann & Sgrò 2011; Colautti & Barrett 2013). Weed...

journal_title：Molecular ecology

authors： Hodgins K

更新日期：2014-05-01 00:00:00

abstract：:The number of exotic plant species that have been introduced into the United States far exceeds that of other groups of organisms, and many of these have become invasive. As in many regions of the globe, invasive members of the thistle tribe, Cardueae, are highly problematic in the California Floristic Province, an es...

journal_title：Molecular ecology

authors： Park DS,Potter D

更新日期：2015-06-01 00:00:00

abstract：:DNA-based sex tests now exist for many avian species. However, none of these tests are widely applicable to ratites. We present DNA sequence data for a locus that is W chromosome-linked in the kiwi, ostrich, cassowary, rhea, and emu. At the amino acid level, this sequence has significant homology to X-linked genes in ...

journal_title：Molecular ecology

authors： Huynen L,Millar CD,Lambert DM

更新日期：2002-04-01 00:00:00