Genomewide signatures of selection in Epichloë reveal candidate genes for host specialization.

abstract：:Genetic variation supplies the raw material for adaptation, evolution and survival of populations and has therefore been a key focus of conservation biology ever since its foundation (Soulé 1985). In previous decades, the neutral component of genetic diversity (generated by mutation and shaped by drift) has been the s...

journal_title：Molecular ecology

authors： Ficetola GF,Bonin AL

更新日期：2011-04-01 00:00:00

abstract：:Lions were the most widespread carnivores in the late Pleistocene, ranging from southern Africa to the southern USA, but little is known about the evolutionary relationships among these Pleistocene populations or the dynamics that led to their extinction. Using ancient DNA techniques, we obtained mitochondrial sequenc...

journal_title：Molecular ecology

authors： Barnett R,Shapiro B,Barnes I,Ho SY,Burger J,Yamaguchi N,Higham TF,Wheeler HT,Rosendahl W,Sher AV,Sotnikova M,Kuznetsova T,Baryshnikov GF,Martin LD,Harington CR,Burns JA,Cooper A

更新日期：2009-04-01 00:00:00

abstract：:Habitat fragmentation represents the single most serious threat to the survival of tropical ecosystems. In formulating strategies to counteract the detrimental effects of fragmentation, knowledge of the levels and patterns of genetic diversity within and between natural populations is vital to the establishment of any...

journal_title：Molecular ecology

authors： Lira CF,Cardoso SR,Ferreira PC,Cardoso MA,Provan J

更新日期：2003-12-01 00:00:00

abstract：:Patterns of genetic differentiation in the plains zebra (Equus quagga) were analysed using mitochondrial DNA control region variation and seven microsatellites. The six morphologically defined subspecies of plains zebra lacked the population genetic structure indicative of distinct evolutionary units. Both marker sets...

journal_title：Molecular ecology

authors： Lorenzen ED,Arctander P,Siegismund HR

更新日期：2008-06-01 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：:Small and isolated populations face threats from genetic drift and inbreeding. To rescue populations from these threats, conservation biologists can augment gene flow into small populations to increase variation and reduce inbreeding depression. Spectacular success stories include greater prairie chickens in Illinois ...

journal_title：Molecular ecology

authors： Waller DM

更新日期：2015-06-01 00:00:00

abstract：:There is ample evidence that organisms adapt to their native environment when gene flow is restricted. However, evolution of plastic responses across discrete environments is less well examined. We studied divergence in means and plasticity across wild and hatchery populations of sea-run brown trout (Salmo trutta) in ...

journal_title：Molecular ecology

authors： Rogell B,Dannewitz J,Palm S,Petersson E,Dahl J,Prestegaard T,Järvi T,Laurila A

更新日期：2012-06-01 00:00:00

abstract：:Urban fragmentation can reduce gene flow that isolates populations, reduces genetic diversity and increases population differentiation, all of which have negative conservation implications. Alternatively, gene flow may actually be increased among urban areas consistent with an urban facilitation model. In fact, urban ...

journal_title：Molecular ecology

authors： Miles LS,Johnson JC,Dyer RJ,Verrelli BC

更新日期：2018-07-04 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

authors： Novick RR,Dick CW,Lemes MR,Navarro C,Caccone A,Bermingham E

更新日期：2003-11-01 00:00:00

abstract：:House mice are extra-ordinary animals -extra-ordinary in the literal sense of that word. They are pests - but also a valued laboratory animal. They are generalized rodents - and successful in habitats from tundra to tropics and from sea-level to high altitudes. They have differentiated into a perplexity of taxa, yet d...

journal_title：Molecular ecology

authors： Berry RJ

更新日期：2009-11-01 00:00:00

abstract：:Both models and case studies suggest that chromosomal inversions can facilitate adaptation and speciation in the presence of gene flow by suppressing recombination between locally adapted alleles. Until recently, however, it has been laborious and time-consuming to identify and genotype inversions in natural populatio...

journal_title：Molecular ecology

authors： Huang K,Andrew RL,Owens GL,Ostevik KL,Rieseberg LH

更新日期：2020-07-01 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

authors： Ludington AJ,Sanders KL

更新日期：2020-11-10 00:00:00

abstract：:Changes in species distributions after the last glacial maximum (c. 18 000 years bp) are beginning to be understood, but information diminishes quickly as one moves further back in time. In this issue of Molecular Ecology, Magri et al. (2007) present the fascinating case of a Mediterranean tree species whose populatio...

journal_title：Molecular ecology

authors： Hampe A,Petit RJ

更新日期：2007-12-01 00:00:00

abstract：:The macrogeographic population structure of the agricultural pest Bactrocera cucurbitae (Diptera: Tephritidae) was investigated in order to identify the geographic origin of the species and reconstruct its range expansion. Individuals of B. cucurbitae were collected from 25 worldwide-distributed localities (n = 570) a...

journal_title：Molecular ecology

authors： Virgilio M,Delatte H,Backeljau T,De Meyer M

更新日期：2010-07-01 00:00:00

abstract：:Fragmentation and loss of natural habitats are recognized as major threats to contemporary flora and fauna. Detecting past or current reductions in population size is therefore a major aim in conservation genetics. Statistical methods developed to this purpose have tended to ignore the effects of spatial population st...

journal_title：Molecular ecology

authors： Leblois R,Estoup A,Streiff R

更新日期：2006-10-01 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：:Pseudomonas fluorescens SBW25 is a Gram-negative bacterium that grows in close association with plants. In common with a broad range of functionally similar bacteria it plays an important role in the turnover of organic matter and certain isolates can promote plant growth. Despite its environmental significance, the c...

journal_title：Molecular ecology

authors： Gal M,Preston GM,Massey RC,Spiers AJ,Rainey PB

更新日期：2003-11-01 00:00:00

abstract：:Colonization of vacant habitat is a fundamental ecological process that affects the ability of species to persist and undergo range modifications in continually shifting landscapes. Thus, understanding factors that affect and limit colonization has important ecological and conservation implications. Epiphytic orchids ...

journal_title：Molecular ecology

authors： Trapnell DW,Hamrick JL,Ishibashi CD,Kartzinel TR

更新日期：2013-07-01 00:00:00

abstract：:Facilitated by the intensification of global trading, the introduction and dispersal of species to areas in which they are historically non-native is nowadays common. From an evolutionary standpoint, invasions are paradoxical: not only non-native environments could be different from native ones for which introduced in...

journal_title：Molecular ecology

authors： Baltazar-Soares M,Blanchet S,Cote J,Tarkan AS,Záhorská E,Gozlan RE,Eizaguirre C

更新日期：2020-01-01 00:00:00

abstract：:Replicated ecological gradients are prime systems to study processes of molecular evolution underlying ecological divergence. Here, we investigated the repeated adaptation of the neotropical fish Poecilia mexicana to habitats containing toxic hydrogen sulphide (H2 S) and compared two population pairs of sulphide-adapt...

journal_title：Molecular ecology

authors： Pfenninger M,Patel S,Arias-Rodriguez L,Feldmeyer B,Riesch R,Plath M

更新日期：2015-11-01 00:00:00

abstract：:In species that form dense populations, major disturbance events are expected to increase the chance of establishment for immigrant lineages. Real-time tests of the impact of disturbance on patterns of genetic structure are, however, scarce. Central to testing these concepts is determining the pool of potential immigr...

journal_title：Molecular ecology

authors： Peters JC,Waters JM,Dutoit L,Fraser CI

更新日期：2020-01-01 00:00:00

abstract：:Using the phylogeographic framework, we assessed the DNA sequence variation at the mitochondrial cytochrome b gene across the distribution range of the barbel Barbus barbus, a widely distributed European cyprinid. Reciprocal monophyly of non-Mediterranean European and Balkan/Anatolian populations is taken as evidence ...

journal_title：Molecular ecology

authors： Kotlík P,Berrebi P

更新日期：2001-09-01 00:00:00

abstract：:We investigated the use of PCR primers designed to conserved exons within nuclear DNA to amplify potentially variable regions such as introns or hypervariable exons from a wide range of species. We then explored various approaches to assay population-level variation in these PCR products. Primers designed to amplify r...

journal_title：Molecular ecology

authors： Slade RW,Moritz C,Heideman A,Hale PT

更新日期：1993-12-01 00:00:00

abstract：:Understanding the pattern of connectivity among populations is crucial for the development of realistic and spatially explicit population models in marine systems. Here we analysed variation at eight microsatellite loci to assess the genetic structure and to infer patterns of larval dispersal for a brooding coral, Ser...

journal_title：Molecular ecology

authors： Underwood JN,Smith LD,Van Oppen MJ,Gilmour JP

更新日期：2007-02-01 00:00:00

abstract：:A breakdown of self-incompatibility (SI) followed by a shift to selfing is commonly observed in the evolution of flowering plants. Both are expected to reduce the levels of heterozygosity and genetic diversity. However, breakdown of SI should most strongly affect the region of the SI locus (S-locus) because of the rel...

journal_title：Molecular ecology

authors： Haudry A,Zha HG,Stift M,Mable BK

更新日期：2012-03-01 00:00:00

abstract：:Natural hybridization between closely related taxa is frequent in many organismal groups, yet it has long been perceived as a force preventing diversification and speciation, especially so in animals. In recent years, growing evidence in favour of hybridization facilitating adaptive divergence has accumulated (Mallet ...

journal_title：Molecular ecology

authors： Renaut S

更新日期：2011-04-01 00:00:00

abstract：:Amphibians are a globally distributed and diverse lineage, but much of our current understanding of their population genetic structure comes from studies in mesic temperate habitats. We characterize the population genetic structure of two sympatric explosive breeding amphibians in the southwestern deserts of the Unite...

journal_title：Molecular ecology

authors： Chan LM,Zamudio KR

更新日期：2009-08-01 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：: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

abstract：:Nested clade phylogeographic analysis (NCPA) has become a popular method for reconstructing the history of populations across species ranges. Ever since its invention in 1995, criticisms have been formulated, but the method, which has been regularly updated, continues to attract investigators. Molecular Ecology has pu...

journal_title：Molecular ecology

authors： Petit RJ

更新日期：2008-01-01 00:00:00