Gradual speciation in a global hotspot of plant diversity.

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

authors： Ehrich D,Fedorov VB,Stenseth NC,Krebs CJ,Kenney A

更新日期：2000-03-01 00:00:00

abstract：:We investigated the genetic outcome of successful invasion by an alien species, the marsh frog Rana ridibunda, in Britain. Twelve adults translocated from Hungary into Kent (Romney) in 1935 resulted rapidly in a large localized population. A further successful translocation in 1973 from Romney to Sussex (Lewes), toget...

journal_title：Molecular ecology

authors： Zeisset I,Beebee TJ

更新日期：2003-03-01 00:00:00

abstract：:Factors promoting the establishment and colonization success of introduced populations in new environments constitute an important issue in biological invasions. In this context, the respective role of pre-adaptation and evolutionary changes during the invasion process is a key question that requires particular attent...

journal_title：Molecular ecology

authors： Perdereau E,Bagnères AG,Vargo EL,Baudouin G,Xu Y,Labadie P,Dupont S,Dedeine F

更新日期：2015-05-01 00:00:00

abstract：:Predicting and controlling infectious disease epidemics is a major challenge facing the management of agriculture, human and wildlife health. Co-evolutionarily derived patterns of local adaptation among pathogen populations have the potential to generate variation in disease epidemiology; however, studies of local ada...

journal_title：Molecular ecology

authors： Parratt SR,Barrès B,Penczykowski RM,Laine AL

更新日期：2017-04-01 00:00:00

abstract：:Isolation due to both geological barriers and range contractions during the Pleistocene glacial maxima has been an important cause of diversification of arid-adapted species in the North American deserts. Tree lizards, Urosaurus ornatus, are distributed across much of the southwestern arid regions and can tolerate a w...

journal_title：Molecular ecology

authors： Haenel GJ

更新日期：2007-10-01 00:00:00

abstract：:The molecular mechanisms underlying complex social behaviours such as dominance are largely unknown. Studying the cooperatively breeding African cichlid Neolamprologus pulcher, we show that dominant females were similar to dominant males in dominance behaviour, high testosterone levels and brain arginine vasotocin exp...

journal_title：Molecular ecology

authors： Aubin-Horth N,Desjardins JK,Martei YM,Balshine S,Hofmann HA

更新日期：2007-04-01 00:00:00

abstract：:In group living animals, especially among primates, there is consistent evidence that high-ranking males gain a higher reproductive output than low-ranking males. Primate studies have shown that male coalitions and sociality can impact male fitness; however, it remains unclear whether males could potentially increase ...

journal_title：Molecular ecology

authors： Kulik L,Muniz L,Mundry R,Widdig A

更新日期：2012-02-01 00:00:00

abstract：:Understanding the origin of new species is a central goal in evolutionary biology. Diverging lineages often evolve highly heterogeneous patterns of genetic differentiation; however, the underlying mechanisms are not well understood. We investigated evolutionary processes governing genetic differentiation between the h...

journal_title：Molecular ecology

authors： Liu X,Glémin S,Karrenberg S

更新日期：2020-09-01 00:00:00

abstract：:Mitochondrial DNA sequence data were obtained for eight species of flightless Galapaganus endemic weevils and one winged close relative in order to study their colonization history and modes of diversification in the Galápagos Archipelago. Contrary to most other insular radiations, the phylogeny estimates we recovered...

journal_title：Molecular ecology

authors： Sequeira AS,Lanteri AA,Albelo LR,Bhattacharya S,Sijapati M

更新日期：2008-02-01 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：:We estimated the gene dispersal distance and the magnitude of inbreeding depression from the fine-scale genetic structure in the endangered heterostylous perennial Primula sieboldii. We indirectly estimated the neighbourhood size (Nb) and the standard deviation of gene dispersal distance (sigma(g)) from the detected g...

journal_title：Molecular ecology

authors： Ishihama F,Ueno S,Tsumura Y,Washitani I

更新日期：2005-04-01 00:00:00

abstract：:We assessed genetic differentiation and diversity in 14 populations of sika deer (Cervus nippon) from Japan and four populations of sika deer introduced to the UK, using nine microsatellite loci. We observed extreme levels of differentiation and significant differences in diversity between populations. Our results do ...

journal_title：Molecular ecology

authors： Goodman SJ,Tamate HB,Wilson R,Nagata J,Tatsuzawa S,Swanson GM,Pemberton JM,McCullough DR

更新日期：2001-06-01 00:00:00

abstract：:The origin of eusociality in haplo-diploid organisms such as Hymenoptera has been mostly explained by kin selection. However, several studies have uncovered decreased relatedness values within colonies, resulting primarily from multiple queen matings (polyandry) and/or from the presence of more than one functional que...

journal_title：Molecular ecology

authors： Fournier D,Aron S,Milinkovitch MC

更新日期：2002-09-01 00:00:00

abstract：:Due to difficulties in identifying important within-species biodiversity for effective species management and conservation, the use of multiple complementary sources of information is required to identify and assess the designation of conservation units based on the degree of variation among populations within a speci...

journal_title：Molecular ecology

authors： Vandersteen Tymchuk W,O'Reilly P,Bittman J,Macdonald D,Schulte P

更新日期：2010-05-01 00:00:00

abstract：:The Mound-building mouse Mus spicilegus possesses a unique behaviour amongst mice. It constructs large earthen mounds and associated nesting chambers which serve to store food for immature individuals during the winter nesting period. We have used genetic analysis of four autosomal and four X-linked microsatellite loc...

journal_title：Molecular ecology

authors： Garza JC,Dallas J,Duryadi D,Gerasimov S,Croset H,Boursot P

更新日期：1997-11-01 00:00:00

abstract：:The taxonomic status of brown bears in the Caucasus remains unclear. Several morphs or subspecies have been identified from the morphological (craniological) data, but the status of each of these subspecies has never been verified by molecular genetic methods. We analysed mitochondrial DNA sequences (control region) t...

journal_title：Molecular ecology

authors： Murtskhvaladze M,Gavashelishvili A,Tarkhnishvili D

更新日期：2010-05-01 00:00:00

abstract：:In insect societies, worker vs. queen development (reproductive caste) is typically governed by environmental factors, but many Pogonomyrmex seed-harvester ants exhibit strict genetic caste determination, resulting in an obligate mutualism between two reproductively isolated lineages. Same-lineage matings produce fert...

journal_title：Molecular ecology

authors： Anderson KE,Wheeler DE,Yang K,Linksvayer TA

更新日期：2011-04-01 00:00:00

abstract：:Vertically transmitted symbionts suffer a severe reduction in numbers when they pass through host generations, resulting in genetic homogeneity or even clonality of their populations. Wolbachia endosymbionts that induce cytoplasmic incompatibility in their hosts depart from this rule, because cytoplasmic incompatibili...

journal_title：Molecular ecology

authors： Mouton L,Henri H,Bouletreau M,Vavre F

更新日期：2003-12-01 00:00:00

abstract：:In this issue of Molecular Ecology, Morick et al. (2011) present an interesting study of acquisition and transmission of Bartonella by Xenopsylla ramesis fleas (Fig. 1) which infest naturally wild desert rodents from the Negev desert. A major issue with vector-borne diseases and vector-borne infection is to know wheth...

journal_title：Molecular ecology

authors： Chomel BB

更新日期：2011-07-01 00:00:00

abstract：:Ocean currents are expected to be the predominant environmental factor influencing the dispersal of planktonic larvae or spores; yet, their characterization as predictors of marine connectivity has been hindered by a lack of understanding of how best to use oceanographic data. We used a high-resolution oceanographic m...

journal_title：Molecular ecology

authors： Alberto F,Raimondi PT,Reed DC,Watson JR,Siegel DA,Mitarai S,Coelho N,Serrão EA

更新日期：2011-06-01 00:00:00

abstract：:Direct gradient analyses in spatial genetics provide unique opportunities to describe the inherent complexity of genetic variation in wildlife species and are the object of many methodological developments. However, multicollinearity among explanatory variables is a systemic issue in multivariate regression analyses a...

journal_title：Molecular ecology

authors： Prunier JG,Colyn M,Legendre X,Nimon KF,Flamand MC

更新日期：2015-01-01 00:00:00

abstract：:The evolution of reproductive isolation in the presence of gene flow is supported by theoretical models but rarely by data. Empirical support might be gained from studies of parallel hybrid zones between interbreeding taxa. We analysed gene flow over two hybrid zones separating ecotypes of Littorina saxatilis to test ...

journal_title：Molecular ecology

authors： Panova M,Hollander J,Johannesson K

更新日期：2006-11-01 00:00:00

abstract：:One of the major challenges in evolutionary biology is to understand the mechanisms underlying morphological dimorphism and plasticity, including the genomic basis of traits and links to ecology. At the yellow eel stage of the European eel (Anguilla anguilla), two morphotypes are found: broad- and narrow-heads. This d...

journal_title：Molecular ecology

authors： De Meyer J,Maes GE,Dirks RP,Adriaens D

更新日期：2017-08-01 00:00:00

abstract：:There is a long-standing debate over whether or not the Pleistocene glaciations promoted speciation. While some models predict that extensive mixing of populations during interglacial expansion would have inhibited divergence, others postulate that divergence among allopatric glacial refuges or founder events during r...

journal_title：Molecular ecology

authors： Knowles LL

更新日期：2001-03-01 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

authors： von Rönn JA,Shafer AB,Wolf JB

更新日期：2016-06-01 00:00:00

abstract：:Landscape features are known to alter the spatial genetic variation of aboveground organisms. Here, we tested the hypothesis that the genetic structure of belowground organisms also responds to landscape structure. Microsatellite markers were used to carry out a landscape genetic study of two endogeic earthworm specie...

journal_title：Molecular ecology

authors： Dupont L,Torres-Leguizamon M,René-Corail P,Mathieu J

更新日期：2017-06-01 00:00:00

abstract：:What is the relationship between genetic or environmental variation and the variation in messenger RNA (mRNA) expression? To address this, microarrays were used to examine the effect of genetic and environmental variation on cardiac mRNA expression for metabolic genes in three groups of Fundulus heteroclitus: (i) indi...

journal_title：Molecular ecology

authors： Scott CP,Williams DA,Crawford DL

更新日期：2009-07-01 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

authors： Mugenzi LMJ,Menze BD,Tchouakui M,Wondji MJ,Irving H,Tchoupo M,Hearn J,Weedall GD,Riveron JM,Cho-Ngwa F,Wondji CS

更新日期：2020-11-01 00:00:00

abstract：:Social monogamy is nearly ubiquitous across avian taxa,but evidence from a proliferation of studies utilizing molecular paternity analysis suggests that sexual monogamy is the rare exception rather than the rule (Griffith et al. 2002). Efforts to explain the prevalence of extra-pair paternity (EPP) have largely focuse...

journal_title：Molecular ecology

authors： Oh KP

更新日期：2011-07-01 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

authors： Lavretsky P,DaCosta JM,Sorenson MD,McCracken KG,Peters JL

更新日期：2019-05-01 00:00:00