Microgeographic population structure of green swordail fish: genetic differentiation despite abundant migration.

abstract：:The extinction of the giant tortoises of the Seychelles Archipelago has long been suspected but is not beyond doubt. A recent morphological study of the giant tortoises of the western Indian Ocean concluded that specimens of two native Seychelles species survive in captivity today alongside giant tortoises of Aldabra,...

journal_title：Molecular ecology

authors： Palkovacs EP,Marschner M,Ciofi C,Gerlach J,Caccone A

更新日期：2003-06-01 00:00:00

abstract：:In two sister species of leaf beetles with overlapping host associations, Chrysochus auratus and C. cobaltinus, we established diet breadth and food preference of local populations for evaluation together with genetic differentiation between populations. While C. auratus turned out to be monophagous on the same plant ...

journal_title：Molecular ecology

authors： Dobler S,Farrell BD

更新日期：1999-08-01 00:00:00

abstract：:Sex chromosomes are believed to be stable in endotherms, but young and evolutionary unstable in most ectothermic vertebrates. Within lacertids, the widely radiated lizard group, sex chromosomes have been reported to vary in morphology and heterochromatinization, which may suggest turnovers during the evolution of the ...

journal_title：Molecular ecology

authors： Rovatsos M,Vukić J,Altmanová M,Johnson Pokorná M,Moravec J,Kratochvíl L

更新日期：2016-07-01 00:00:00

abstract：:Few chloroplast-based genetic studies have been undertaken for plants of mesic temperate forests in the southern hemisphere and fossil-based models have provided evidence of vegetation history only at the broadest scales in this region. This study investigates the chloroplast DNA phylogeography of Tasmannia lanceolata...

journal_title：Molecular ecology

authors： Worth JR,Jordan GJ,Marthick JR,McKinnon GE,Vaillancourt RE

更新日期：2010-07-01 00:00:00

abstract：:Studies that span entire species ranges can provide insight into the relative roles of historical contingency and contemporary factors that influence population structure and can reveal patterns of genetic variation that might otherwise go undetected. American shad is a wide ranging anadromous clupeid fish that exhibi...

journal_title：Molecular ecology

authors： Hasselman DJ,Ricard D,Bentzen P

更新日期：2013-03-01 00:00:00

abstract：:Plasmid pSI30 was constructed to increase the sensitivity of detection of a genetically engineered micro-organism (GEM) and its recombinant DNA in environmental samples. This broad host-range, mobilizable plasmid contained chlorocatechol (clc) degradative genes, antibiotic resistance genes (ampicillin and kanamycin) a...

journal_title：Molecular ecology

authors： Genthner FJ,Campbell RP,Pritchard PH

更新日期：1992-10-01 00:00:00

abstract：:Achieving long-term persistence of species in urbanized landscapes requires characterizing population genetic structure to understand and manage the effects of anthropogenic disturbance on connectivity. Urbanization over the past century in coastal southern California has caused both precipitous loss of coastal sage s...

journal_title：Molecular ecology

authors： Barr KR,Kus BE,Preston KL,Howell S,Perkins E,Vandergast AG

更新日期：2015-05-01 00:00:00

abstract：:The population dynamics of a parasite depend on species traits, host dynamics and the environment. Those dynamics are reflected in the genetic structure of the population. Habitat fragmentation has a greater impact on parasites than on their hosts because resource distribution is increasingly fragmented for species at...

journal_title：Molecular ecology

authors： Couchoux C,Seppä P,van Nouhuys S

更新日期：2016-07-01 00:00:00

abstract：:I derive the equilibrium values of sex-specific FST parameters, in an island model for a dioecious species with sex-biased dispersal and binomial distribution of family size before dispersal (as assumed in a Wright-Fisher population). I show that FST may take different values among males and among females whenever dis...

journal_title：Molecular ecology

authors： Vitalis R

更新日期：2002-01-01 00:00:00

abstract：:Infections with maternally inherited Wolbachia bacteria may have dramatic influences on reproductive traits and speciation patterns of their hosts. We here show that in the beetle genus Altica, infection has influenced phylogenetic patterns of the host's mtDNA and different strains led to repeated selective sweeps. By...

journal_title：Molecular ecology

authors： Jäckel R,Mora D,Dobler S

更新日期：2013-08-01 00:00:00

abstract：:Social bees are important insect pollinators of wildflowers and agricultural crops, making their reported declines a global concern. A major factor implicated in these declines is the widespread use of neonicotinoid pesticides. Indeed, recent research has demonstrated that exposure to low doses of these neurotoxic pes...

journal_title：Molecular ecology

authors： Colgan TJ,Fletcher IK,Arce AN,Gill RJ,Ramos Rodrigues A,Stolle E,Chittka L,Wurm Y

更新日期：2019-04-01 00:00:00

abstract：:The relationships between parasites and their hosts are intimate, dynamic and complex; the evolution of one is inevitably linked to the other. Despite multiple origins of parasitism in the Cnidaria, only parasites belonging to the Myxozoa are characterized by a complex life cycle, alternating between fish and inverteb...

journal_title：Molecular ecology

authors： Holzer AS,Bartošová-Sojková P,Born-Torrijos A,Lövy A,Hartigan A,Fiala I

更新日期：2018-04-01 00:00:00

abstract：:Cotton plants accumulate phytotoxins, including gossypol and related sesquiterpene aldehydes, to resist insect herbivores and pathogens. To counteract these defensive plant secondary metabolites, cotton bollworms (Helicoverpa armigera) elevate their production of detoxification enzymes, including cytochrome P450 monoo...

journal_title：Molecular ecology

authors： Tao XY,Xue XY,Huang YP,Chen XY,Mao YB

更新日期：2012-09-01 00:00:00

abstract：:Genetic divergence of populations in the presence of gene flow is a central theme in speciation research. Theory predicts that divergence can happen with full range overlap - in sympatry - driven by ecological factors, but there are few empirical examples of how ecologically divergent selection can overcome gene flow ...

journal_title：Molecular ecology

authors： Kaiser TS,von Haeseler A,Tessmar-Raible K,Heckel DG

更新日期：2021-01-07 00:00:00

abstract：:Quaternary climatic fluctuations have left contrasting historical footprints on the neutral genetic diversity patterns of existing populations of different tree species. We should expect the demography, and consequently the neutral genetic structure, of taxa less tolerant to particular climatic extremes to be more sen...

journal_title：Molecular ecology

authors： Soto A,Robledo-Arnuncio JJ,González-Martínez SC,Smouse PE,Alía R

更新日期：2010-04-01 00:00:00

abstract：:Reef corals are especially sensitive to environmental change since their survival is dependent on a delicate balance between the coral host and its algal endosymbiont. Predicting the responses of reef ecosystems to global climate change requires a detailed understanding of the diversity of both partners in this symbio...

journal_title：Molecular ecology

authors： van Oppen MJ

更新日期：2007-03-01 00:00:00

abstract：:Sağlam et al. recently argued that the Devil's Hole pupfish (Cyprinodon diabolis), a conservation icon with the smallest known species range, was isolated 60 kya based on a new genomic data set. If true, this would be a radically long timescale for any species to persist at population sizes <500 individuals, in contra...

journal_title：Molecular ecology

authors： Martin CH,Höhna S

更新日期：2018-02-01 00:00:00

abstract：:Avian wing length is an important trait that covaries with the ecology and migratory behaviour of a species and tends to change rapidly when the conditions are altered. Long-distance migrants typically have longer wings than short-distance migrants and sedentary species, and long-winged species also tend to be more di...

journal_title：Molecular ecology

authors： Schielzeth H,Forstmeier W,Kempenaers B,Ellegren H

更新日期：2012-01-01 00:00:00

abstract：:As populations diverge many processes can shape genomic patterns of differentiation. Regions of high differentiation can arise due to divergent selection acting on selected loci, genetic hitchhiking of nearby loci, or through repeated selection against deleterious alleles (linked background selection); this divergence...

journal_title：Molecular ecology

authors： Lehnert SJ,Kess T,Bentzen P,Clément M,Bradbury IR

更新日期：2020-06-01 00:00:00

abstract：:Spatially overdispersed mounds of fungus-farming termites (Macrotermitinae) are hotspots of nutrient availability and primary productivity in tropical savannas, creating spatial heterogeneity in communities and ecosystem functions. These termites influence the local availability of nutrients in part by redistributing ...

journal_title：Molecular ecology

authors： Baker CCM,Castillo Vardaro JA,Doak DF,Pansu J,Puissant J,Pringle RM,Tarnita CE

更新日期：2020-11-01 00:00:00

abstract：:Relatedness increases the likelihood of cooperation within colonies of social insects. Polygyny, the coexistence of numerous reproductive females (queens) in a colony, is common in mature colonies of the termite Macrotermes michaelseni. In this species, polygyny results from pleometrosis and from several female alates...

journal_title：Molecular ecology

authors： Hacker M,Kaib M,Bagine RK,Epplen JT,Brandl R

更新日期：2005-04-01 00:00:00

abstract：:Threespine stickleback populations are model systems for studying adaptive evolution and the underlying genetics. In lakes on the Haida Gwaii archipelago (off western Canada), stickleback have undergone a remarkable local radiation and show phenotypic diversity matching that seen throughout the species distribution. T...

journal_title：Molecular ecology

authors： Deagle BE,Jones FC,Absher DM,Kingsley DM,Reimchen TE

更新日期：2013-04-01 00:00:00

abstract：:The inference of population divergence times and branching patterns is of fundamental importance in many population genetic analyses. Many methods have been developed for estimating population divergence times, and recently, there has been particular attention towards genome-wide single-nucleotide polymorphisms (SNP) ...

journal_title：Molecular ecology

authors： Wang Y,Nielsen R

更新日期：2012-02-01 00:00:00

abstract：:White clover is polymorphic for cyanogenesis (HCN production after tissue damage), and this herbivore defence polymorphism has served as a classic model for studying adaptive variation. The cyanogenic phenotype requires two interacting biochemical components; the presence/absence of each component is controlled by a s...

journal_title：Molecular ecology

authors： Kooyers NJ,Olsen KM

更新日期：2012-05-01 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：:Wolbachia are a genus of bacterial symbionts that are known to manipulate the reproduction of their arthropod hosts, both by distorting the host sex ratio and by inducing cytoplasmic incompatibility. Previous work has suggested that some Wolbachia clades specialize in particular host taxa, but others are diverse. Furt...

journal_title：Molecular ecology

authors： Jiggins FM,Bentley JK,Majerus ME,Hurst GD

更新日期：2002-08-01 00:00:00

abstract：:Recombination rate is a heritable trait that varies among individuals. Despite the major impact of recombination rate on patterns of genetic diversity and the efficacy of selection, natural variation in this phenotype remains poorly characterized. We present a comparison of genetic maps, sampling 1212 meioses, from a ...

journal_title：Molecular ecology

authors： Wang RJ,Gray MM,Parmenter MD,Broman KW,Payseur BA

更新日期：2017-01-01 00:00:00

abstract：:Genetic assignment methods provide an appealing approach for characterizing dispersal patterns on ecological time scales, but require sufficient genetic differentiation to accurately identify migrants and a large enough sample size of migrants to, for example, compare dispersal between sexes or age classes. We demonst...

journal_title：Molecular ecology

authors： Hall LA,Palsbøll PJ,Beissinger SR,Harvey JT,Bérubé M,Raphael MG,Nelson SK,Golightly RT,McFarlane-Tranquilla L,Newman SH,Peery MZ

更新日期：2009-12-01 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：:Animals generally benefit from their gastrointestinal microbiome, but the factors that influence the composition and dynamics of their microbiota remain poorly understood. Studies of nonmodel host species can illuminate how microbiota and their hosts interact in natural environments. We investigated the role of migrat...

journal_title：Molecular ecology

authors： Turjeman S,Corl A,Wolfenden A,Tsalyuk M,Lublin A,Choi O,Kamath PL,Getz WM,Bowie RCK,Nathan R

更新日期：2020-12-01 00:00:00