Gene flow and inbreeding depression inferred from fine-scale genetic structure in an endangered heterostylous perennial, Primula sieboldii.

abstract：:The formation of stable genetic boundaries between emerging species is often diagnosed by reduced hybrid fitness relative to parental taxa. This reduced fitness can arise from endogenous and/or exogenous barriers to gene flow. Although detecting exogenous barriers in nature is difficult, we can estimate the role of ec...

journal_title：Molecular ecology

authors： Tarroso P,Pereira RJ,Martínez-Freiría F,Godinho R,Brito JC

更新日期：2014-03-01 00:00:00

abstract：:Small population sizes can, over time, put species at risk due to the loss of genetic variation and the deleterious effects of inbreeding. Losing diversity in the major histocompatibility complex (MHC) could be particularly harmful, given its key role in the immune system. Here, we assess MHC class I (MHC-I) diversity...

journal_title：Molecular ecology

authors： Stervander M,Dierickx EG,Thorley J,Brooke ML,Westerdahl H

更新日期：2020-05-16 00:00:00

abstract：:Microorganisms in the gastrointestinal tract of animals play vital roles in food digestion, homeostasis and immune response regulation. Globally, there are 33,700 fish species, representing almost half of all vertebrate diversity and a wide range of physiologies, ecologies and life histories. To investigate gut microb...

journal_title：Molecular ecology

authors： Huang Q,Sham RC,Deng Y,Mao Y,Wang C,Zhang T,Leung KMY

更新日期：2020-12-01 00:00:00

abstract：:Population differentiation (PD) and ecological association (EA) tests have recently emerged as prominent statistical methods to investigate signatures of local adaptation using population genomic data. Based on statistical models, these genomewide testing procedures have attracted considerable attention as tools to id...

journal_title：Molecular ecology

authors： François O,Martins H,Caye K,Schoville SD

更新日期：2016-01-01 00:00:00

abstract：:Phenotypic plasticity has been hypothesized to play a central role in the evolution of phenotypic diversity across species (West-Eberhard ). Through 'genetic assimilation', phenotypes that are initially environmentally induced within species become genetically fixed over evolutionary time. While genetic assimilation h...

journal_title：Molecular ecology

authors： Sikkink KL,Snell-Rood EC

更新日期：2016-12-01 00:00:00

abstract：:Several species of swallowtail butterflies (genus Papilio) are Batesian mimics that express multiple mimetic female forms, while the males are monomorphic and nonmimetic. The evolution of such sex-limited mimicry may involve sexual dimorphism arising first and mimicry subsequently. Such a stepwise scenario through a n...

journal_title：Molecular ecology

authors： Timmermans MJ,Thompson MJ,Collins S,Vogler AP

更新日期：2017-03-01 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：:On one night per year, at a specific point in the lunar cycle, one of the most extraordinary reproductive events on the planet unfolds as hundreds of millions of broadcast spawning corals release their trillions of gametes into the waters of the tropical seas. Each species spawns on a specific night within the lunar c...

journal_title：Molecular ecology

authors： Oldach MJ,Workentine M,Matz MV,Fan TY,Vize PD

更新日期：2017-05-01 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：:The major aim of this study was to compare the phylogeographic patterns of codistributed bats and small nonvolant Neotropical mammals. Cytochrome b sequences (mitochondrial DNA) were obtained for a total of 275 bats representing 17 species. The tissue samples were collected in coastal Brazil, and were available from M...

journal_title：Molecular ecology

authors： Ditchfield AD

更新日期：2000-09-01 00:00:00

abstract：:Gene flow is a fundamental evolutionary force in adaptation that is especially important to understand as humans are rapidly changing both the natural environment and natural levels of gene flow. Theory proposes a multifaceted role for gene flow in adaptation, but it focuses mainly on the disruptive effect that gene f...

journal_title：Molecular ecology

authors： Tigano A,Friesen VL

更新日期：2016-05-01 00:00:00

abstract：:Ribosomal DNA (rDNA) copy number variation (CNV) has major physiological implications for all organisms, but how it varies for fungi, an ecologically ubiquitous and important group of microorganisms, has yet to be systemically investigated. Here, we examine rDNA CNV using an in silico read depth approach for 91 fungal...

journal_title：Molecular ecology

authors： Lofgren LA,Uehling JK,Branco S,Bruns TD,Martin F,Kennedy PG

更新日期：2019-02-01 00:00:00

abstract：:Knowledge of the role of landscapes in shaping genetic connectivity and divergence is essential for understanding patterns of biogeography and diversity. This is particularly relevant for the Andes region, a major biodiversity hotspot of relatively recent origin. We examined the phylogeography and landscape genetics o...

journal_title：Molecular ecology

authors： Trénel P,Hansen MM,Normand S,Borchsenius F

更新日期：2008-08-01 00:00:00

abstract：:Investigating complex parasitic life cycles is important for understanding the major fitness components that drive the evolution of host-parasite systems. The rare condition of heterotrophic heteronomy, in which the sexes utilize disparate host taxa, is a poorly understood complex parasitic lifestyle. One of only two ...

journal_title：Molecular ecology

authors： Hayward A,McMahon DP,Kathirithamby J

更新日期：2011-04-01 00:00:00

abstract：:Multilocus isozyme genotypic composition for aspartate aminotransferase (AAT), leucine aminopeptidase (LAP) and glutamate dehydrogenase (GDH) was studied for Capsella in the source continent, Europe (9000 plants from 593 populations), and in the colonized continent, North America (2700 plants from 88 populations). Nor...

journal_title：Molecular ecology

authors： Neuffer B,Hurka H

更新日期：1999-10-01 00:00:00

abstract：:The Neolithic transition has been widely debated particularly regarding the extent to which this revolution implied a demographic expansion from the Near East. We attempted to shed some light on this process in northeastern Iberia by combining ancient DNA (aDNA) data from Early Neolithic settlers and published DNA dat...

journal_title：Molecular ecology

authors： Gamba C,Fernández E,Tirado M,Deguilloux MF,Pemonge MH,Utrilla P,Edo M,Molist M,Rasteiro R,Chikhi L,Arroyo-Pardo E

更新日期：2012-01-01 00:00:00

abstract：:Sex identification is a problem in research and conservation. It can often be solved using a DNA test but this is only an option if a sex-specific marker is available. Such markers can be identified using the amplified fragment length polymorphism (AFLP) technique. This is usually a taxonomic method, as it produces a ...

journal_title：Molecular ecology

authors： Griffiths R,Orr K

更新日期：1999-04-01 00:00:00

abstract：:Sky islands are ideal systems for determining the effects of climatic oscillations on species distributions and genetic structure. Our study focused on montane stonefly populations in the Great Basin of western North America. We used niche-based distribution modelling, phylogeography and traditional species-based biog...

journal_title：Molecular ecology

authors： Schultheis AS,Booth JY,Perlmutter LR,Bond JE,Sheldon AL

更新日期：2012-07-01 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：:The ecosystem service of insect pest regulation by natural enemies, such as primary parasitoids, may be enhanced by the presence of uncultivated, semi-natural habitats within agro-ecosystems, although quantifying such host-parasitoid interactions is difficult. Here, we use rRNA 16S gene sequencing to assess both the l...

journal_title：Molecular ecology

authors： Derocles SA,Le Ralec A,Besson MM,Maret M,Walton A,Evans DM,Plantegenest M

更新日期：2014-08-01 00:00:00

abstract：:We present a mitochondrial DNA (mtDNA) haplotype phylogeny for Amazonian Anolis lizards, including geographical sampling within four species distributed across the Amazon basin (A. fuscoauratus, A. nitens, A. ortonii and A. punctatus). Approximately 1500 bp of mtDNA encoding ND2, COI and four transfer RNAs (tRNAs) are...

journal_title：Molecular ecology

authors： Glor RE,Vitt LJ,Larson A

更新日期：2001-11-01 00:00:00

abstract：:Mitochondrial DNA control region sequences and seven microsatellites were used to estimate the genetic structuring, evolutionary history and historic migration patterns of the kob antelope (Kobus kob). Ten populations were analysed, representing the three recognized K. kob subspecies: K. k. kob in west Africa, K. k. t...

journal_title：Molecular ecology

authors： Lorenzen ED,De Neergaard R,Arctander P,Siegismund HR

更新日期：2007-08-01 00:00:00

abstract：:It has been long recognized that population demographic expansions lead to distinctive features in the molecular diversity of populations. However, recent simulation results have suggested that a distinction could be made between a pure demographic expansion in an unsubdivided population, and a range expansion in a su...

journal_title：Molecular ecology

authors： Excoffier L

更新日期：2004-04-01 00:00:00

abstract：:Random amplified polymorphic DNA (RAPD) markers are sensitive to changes in reaction conditions and may express polymorphisms of nongenetic origin. Taxa with variable chromosome numbers are particularly challenging cases, as differences in DNA content may also influence marker reproducibility. We addressed these probl...

journal_title：Molecular ecology

authors： Kjølner S,Såstad SM,Taberlet P,Brochmann C

更新日期：2004-01-01 00:00:00

abstract：:Typha glauca represents a significant portion of the biomass of the wetlands surrounding the Great Lakes, USA. It is generally accepted to be a form of hybrid between T. latifolia and T. angustifolia, which itself appears to be an exotic introduction from Europe. Based on morphological and isozyme data, conflicting th...

journal_title：Molecular ecology

authors： Kuehn MM,Minor JE,White BN

更新日期：1999-12-01 00:00:00

abstract：:Naturally occurring heat shock (HS) during pupation induces abnormal wing development in Drosophila; we examined factors affecting the severity of this induction. The proportion of HS-surviving adults with abnormal wings varied with HS duration and intensity, and with the pupal age or stage at HS administration. Pretr...

journal_title：Molecular ecology

authors： Williams KD,Helin AB,Posluszny J,Roberts SP,Feder ME

更新日期：2003-05-01 00:00:00

abstract：:Telomeres are dynamic DNA-protein structures that form protective caps at the ends of eukaryotic chromosomes. Although initial telomere length is partly genetically determined, subsequent accelerated telomere shortening has been linked to elevated levels of oxidative stress. Recent studies show that short telomere len...

journal_title：Molecular ecology

authors： Pauliny A,Wagner RH,Augustin J,Szép T,Blomqvist D

更新日期：2006-05-01 00:00:00

abstract：:The lizard genus Kentropyx (Squamata: Teiidae) comprises nine species, which have been placed in three species groups (calcarata group, associated to forests ecosystems; paulensis and striata groups, associated to open ecosystems). We reconstructed phylogenetic relationships of Kentropyx based on morphology (pholidosi...

journal_title：Molecular ecology

authors： Werneck Fde P,Giugliano LG,Collevatti RG,Colli GR

更新日期：2009-01-01 00:00:00

abstract：:As modern genomic tools are developed for ecologically compelling models, field manipulation experiments will become important for establishing the role of functional genomic variation in physiological acclimation and evolutionary adaptation along environmental clines. High-altitude habitats expose individuals to hypo...

journal_title：Molecular ecology

authors： Cheviron ZA,Whitehead A,Brumfield RT

更新日期：2008-10-01 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

authors： Segelbacher G,Höglund J,Storch I

更新日期：2003-07-01 00:00:00