A range-wide genetic bottleneck overwhelms contemporary landscape factors and local abundance in shaping genetic patterns of an alpine butterfly (Lepidoptera: Pieridae: Colias behrii).

abstract：:Asexual lineages are thought to be prone to extinction because of deleterious mutation accumulation (Muller's ratchet). Here, we analyse genomic effects of hybridity, polyploidy and allelic divergence in apomictic plants, and identify loci under divergent selection among sexual/apomictic lineages. RNAseq was used to s...

journal_title：Molecular ecology

authors： Pellino M,Hojsgaard D,Schmutzer T,Scholz U,Hörandl E,Vogel H,Sharbel TF

更新日期：2013-12-01 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：:Parents can have profound effects on offspring fitness. Little, however, is known about the mechanisms through which parental genetic variation influences offspring physiology in natural systems. White-throated sparrows (Zonotrichia albicollis, WTSP) exist in two genetic morphs, tan and white, controlled by a large po...

journal_title：Molecular ecology

authors： Newhouse DJ,Barcelo-Serra M,Tuttle EM,Gonser RA,Balakrishnan CN

更新日期：2019-09-01 00:00:00

abstract：:Many insects possess endosymbiotic bacteria inside their body, wherein intimate interactions occur between the partners. While recent technological advancements have deepened our understanding of metabolic and evolutionary features of the symbiont genomes, molecular mechanisms underpinning the intimate interactions re...

journal_title：Molecular ecology

authors： Kikuchi Y,Fukatsu T

更新日期：2014-03-01 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：:Because the vast majority of species are well diverged, relatively little is known about the genomic architecture of speciation during the early stages of divergence. Species within recent evolutionary radiations are often minimally diverged from a genomic perspective, and therefore provide rare opportunities to addre...

journal_title：Molecular ecology

authors： Puebla O,Bermingham E,McMillan WO

更新日期：2014-11-01 00:00:00

abstract：:The koala, Phascolarctos cinereus, is a geographically widespread species endemic to Australia, with three currently recognized subspecies: P.c. adustus, P.c. cinereus, and P.c. victor. Intraspecific variation in the mitochondrial DNA (mtDNA) control region was examined in over 200 animals from 16 representative popul...

journal_title：Molecular ecology

authors： Houlden BA,Costello BH,Sharkey D,Fowler EV,Melzer A,Ellis W,Carrick F,Baverstock PR,Elphinstone MS

更新日期：1999-06-01 00:00:00

abstract：:Niche conservatism has been proposed as the mechanism driving speciation in temperate montane clades through range fragmentation during climatic oscillations. Thus, a negative relationship between speciation rates and niche width is expected. Here, we test this prediction using American zopherine beetles. Our phylogen...

journal_title：Molecular ecology

authors： Baselga A,Recuero E,Parra-Olea G,García-París M

更新日期：2011-12-01 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：:In an effort to characterize further the patterns of selection and adaptive evolution at the methuselah locus in Drosophila species, we extended an analysis of geographical variation to include single nucleotide polymorphisms (SNPs) in adjacent genes on either side of the mth locus, and examined the molecular variatio...

journal_title：Molecular ecology

authors： Duvernell DD,Schmidt PS,Eanes WF

更新日期：2003-05-01 00:00:00

abstract：:Isolation by adaptation increases divergence at neutral loci when natural selection against immigrants reduces the rate of gene flow between different habitats. This can occur early in the process of adaptive divergence and is a key feature of ecological speciation. Despite the ability of isolation by distance (IBD) a...

journal_title：Molecular ecology

authors： Andrew RL,Ostevik KL,Ebert DP,Rieseberg LH

更新日期：2012-05-01 00:00:00

abstract：:The ability of DNA screening techniques such as Temperature Gradient Gel Electrophoresis (TGGE) and Heteroduplex Analysis to provide resolution approaching that provided by DNA sequencing for a fraction of the time, effort and expense point to them as the logical successor to allozyme electrophoresis for population ge...

journal_title：Molecular ecology

authors： Campbell NJ,Harriss FC,Elphinstone MS,Baverstock PR

更新日期：1995-08-01 00:00:00

abstract：:Habitat fragmentation is one of the major contributors to the loss of biodiversity worldwide. However, relatively little is known about its more immediate impacts on within-patch population processes such as social structure and mating systems, whose alteration may play an important role in extinction risk. We investi...

journal_title：Molecular ecology

authors： Banks SC,Ward SJ,Lindenmayer DB,Finlayson GR,Lawson SJ,Taylor AC

更新日期：2005-05-01 00:00:00

abstract：:The research objectives were to determine aspects of the population dynamics relevant to effective monitoring of gene flow in the soybean crop complex in Japan. Using 20 microsatellite primers, 616 individuals from 77 wild soybean (Glycine soja) populations were analysed. All samples were of small seed size (< 0.03 g)...

journal_title：Molecular ecology

authors： Kuroda Y,Kaga A,Tomooka N,Vaughan DA

更新日期：2006-04-01 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

authors： Calsbeek R,Thompson JN,Richardson JE

更新日期：2003-04-01 00:00:00

abstract：:Classification, phylogeography and the testing of evolutionary hypotheses rely on correct estimation of species phylogeny. Early molecular phylogenies often relied on mtDNA alone, which acts as a single linkage group with one history. Over the last decade, the use of multiple nuclear sequences has often revealed confl...

journal_title：Molecular ecology

authors： Wallis GP,Cameron-Christie SR,Kennedy HL,Palmer G,Sanders TR,Winter DJ

更新日期：2017-06-01 00:00:00

abstract：:Genetic diversity and fine-scale population structure in the lichen-forming ascomycete Xanthoria parietina was investigated using sequence variation in part of the intergenic spacer (IGS) and the complete internal transcribed spacer (ITS) regions of the nuclear ribosomal DNA. Sampling included 213 and 225 individuals,...

journal_title：Molecular ecology

authors： Lindblom L,Ekman S

更新日期：2006-05-01 00:00:00

abstract：:Temporal changes at 16 allozyme loci in the Diplodus sargus population of Banyuls-sur-Mer (Mediterranean Sea, France) were monitored. Temporal genetic variation within a single population was examined over two temporal scales: (i) among three year-classes sampled at the same age, and (ii) within a single year-class sa...

journal_title：Molecular ecology

authors： Planes S,Lenfant P

更新日期：2002-08-01 00:00:00

abstract：:Diversifying selection on metabolic pathways can reduce intraspecific gene flow and promote population divergence. An opportunity to explore this arises from mitonuclear discordance observed in an Australian bird Eopsaltria australis. Across >1500 km, nuclear differentiation is low and latitudinally structured by isol...

journal_title：Molecular ecology

authors： Morales HE,Pavlova A,Joseph L,Sunnucks P

更新日期：2015-06-01 00:00:00

abstract：:In arthropods, the intracellular bacteria Wolbachia often induce cytoplasmic incompatibility (CI) between sperm and egg, which causes conditional embryonic death and promotes the spatial spread of Wolbachia infections into host populations. The ability of Wolbachia to spread in natural populations through CI has attra...

journal_title：Molecular ecology

authors： Atyame CM,Labbé P,Rousset F,Beji M,Makoundou P,Duron O,Dumas E,Pasteur N,Bouattour A,Fort P,Weill M

更新日期：2015-01-01 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

abstract：:Understanding the processes that shape patterns of genetic structure across space is a central aim of landscape genetics. However, it remains unclear how geographical features and environmental variables shape gene flow, particularly for marine species in large complex seascapes. Here, we evaluated the genomic composi...

journal_title：Molecular ecology

authors： Saenz-Agudelo P,Dibattista JD,Piatek MJ,Gaither MR,Harrison HB,Nanninga GB,Berumen ML

更新日期：2015-12-01 00:00:00

abstract：:Colonization is likely to be more successful for species with an ability to self-fertilize and thus to establish new populations as single individuals. As a result, self-compatibility should be common among colonizing species. This idea, labelled 'Baker's law', has been influential in discussions of sexual-system and ...

journal_title：Molecular ecology

authors： Pannell JR

更新日期：2015-05-01 00:00:00

abstract：:The analysis of mitochondrial DNA sequences has for a long time been the most extensively used genetic tool for phylogenetic, phylogeographic and population genetic studies. Since this approach only considers female lineages, it tends to give a biased picture of the population history. The use of protein polymorphisms...

journal_title：Molecular ecology

authors： Sundqvist AK,Ellegren H,Olivier M,Vilà C

更新日期：2001-08-01 00:00:00

abstract：:Divergent host use has long been suspected to drive population differentiation and speciation in plant-feeding insects. Evaluating the contribution of divergent host use to genetic differentiation can be difficult, however, as dispersal limitation and population structure may also influence patterns of genetic variati...

journal_title：Molecular ecology

authors： Bagley RK,Sousa VC,Niemiller ML,Linnen CR

更新日期：2017-02-01 00:00:00

abstract：:Phenotypic plasticity allows organisms to adapt quickly to local environmental conditions and could facilitate adaptive radiations. Cichlids have recently undergone an adaptive radiation in Lake Malawi where they inhabit diverse light environments and tune their visual sensitivity through differences in cone opsin exp...

journal_title：Molecular ecology

authors： Nandamuri SP,Yourick MR,Carleton KL

更新日期：2017-11-01 00:00:00

abstract：:The impact of gene flow and population size fluctuations in shaping genetic variation during adaptive radiation, at both the genome-wide and gene-specific levels, is very poorly understood. To examine how historical population size and gene flow patterns within and between loci have influenced lineage divergence in th...

journal_title：Molecular ecology

authors： Lawton-Rauh A,Robichaux RH,Purugganan MD

更新日期：2007-10-01 00:00:00

abstract：:The primary goal of captive breeding programmes for endangered species is to prevent extinction, a component of which includes the preservation of genetic diversity and avoidance of inbreeding. This is typically accomplished by minimizing mean kinship in the population, thereby maintaining equal representation of the ...

journal_title：Molecular ecology

authors： Hammerly SC,Morrow ME,Johnson JA

更新日期：2013-11-01 00:00:00

abstract：:Wolbachia are maternally transmitted bacteria that alter their arthropod hosts' reproduction in various ways, including parthenogenesis induction (PI). Wolbachia-induced parthenogenesis can have drastic effects on the genetic structure of its host because it potentially reduces populations to clones without genetic ex...

journal_title：Molecular ecology

authors： Pannebakker BA,Zwaan BJ,Beukeboom LW,Van Alphen JJ

更新日期：2004-05-01 00:00:00

abstract：:Anthropogenic habitat fragmentation of species that live in naturally patchy metapopulations such as mountaintops or sky islands experiences two levels of patchiness. Effects of such multilevel patchiness on species have rarely been examined. Metapopulation theory suggests that patchy habitats could have varied impact...

journal_title：Molecular ecology

authors： Robin VV,Gupta P,Thatte P,Ramakrishnan U

更新日期：2015-07-01 00:00:00