Asexual genome evolution in the apomictic Ranunculus auricomus complex: examining the effects of hybridization and mutation accumulation.

abstract：:The thermal profiles of 118 bacterial strains, representing six species of the family Enterobacteriaceae, isolated from a variety of native Australian mammals were determined under in vitro conditions. Each of the bacterial species had a unique thermal profile and differed in their minimum or maximum temperature for g...

journal_title：Molecular ecology

authors： Okada S,Gordon DM

更新日期：2001-10-01 00:00:00

abstract：:Current forestry policy promotes the use of local seed for new plantings, on the assumption that local material may be better adapted to local conditions. However, landscape-scale genetic studies which are necessary to underpin conservation and breeding strategies are often lacking. We investigated molecular diversity...

journal_title：Molecular ecology

authors： Sutherland BG,Belaj A,Nier S,Cottrell JE,P Vaughan S,Hubert J,Russell K

更新日期：2010-06-01 00:00:00

abstract：:Crop-wild hybridization has been documented in many cultivated species, but the ecological and genetic factors that influence the likelihood or rate that cultivar alleles will introgress into wild populations are poorly understood. Seed predation is one factor that could mitigate the spread of otherwise advantageous c...

journal_title：Molecular ecology

authors： Dechaine JM,Burger JC,Burke JM

更新日期：2010-08-01 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：:The population structure of variation in a nuclear actin intron and the control region of mitochondrial DNA is described for humpback whales from eight regions in the North Pacific Ocean: central California, Baja Peninsula, nearshore Mexico (Bahia Banderas), offshore Mexico (Socorro Island), southeastern Alaska, centr...

journal_title：Molecular ecology

authors： Baker CS,Medrano-Gonzalez L,Calambokidis J,Perry A,Pichler F,Rosenbaum H,Straley JM,Urban-Ramirez J,Yamaguchi M,von Ziegesar O

更新日期：1998-06-01 00:00:00

abstract：:The evolutionary origin of extant species in the Neotropics, one of the most biodiverse regions of the world, has been widely debated. One hypothesis is that neotropical species emerged primarily during the Quaternary (the last approximately 2 million years), favoured by alternating glacial/interglacial climates. An o...

journal_title：Molecular ecology

authors： Rull V

更新日期：2008-06-01 00:00:00

abstract：:The confounding effects of population structure complicate efforts to identify regions of the genome under the influence of selection in natural populations. Here we test for evidence of selection in three genes involved in vertebrate immune function - the major histocompatibility complex (MHC), interferon gamma (IFNG...

journal_title：Molecular ecology

authors： Worley K,Carey J,Veitch A,Coltman DW

更新日期：2006-03-01 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：:Variation in social behaviour is common, yet little is known about the genetic architectures underpinning its evolution. A rare exception is in the fire ant Solenopsis invicta: Alternative variants of a supergene region determine whether a colony will have exactly one or up to dozens of queens. The two variants of thi...

journal_title：Molecular ecology

authors： Pracana R,Priyam A,Levantis I,Nichols RA,Wurm Y

更新日期：2017-06-01 00:00:00

abstract：:Ophiocordyceps unilateralis (Hypocreales, Ascomycetes) is an entomopathogenic fungus specific to formicine ants (Formicinae, Hymenoptera). Previous works have shown that the carpenter ant Camponotus leonardi acts as the principal host with occasional infections of ants from the genus Polyrhachis (sister genus of Campo...

journal_title：Molecular ecology

authors： Kobmoo N,Mongkolsamrit S,Tasanathai K,Thanakitpipattana D,Luangsa-Ard JJ

更新日期：2012-06-01 00:00:00

abstract：:Understanding the factors that maintain genetic variation in natural populations is a foundational goal of evolutionary biology. To this end, population geneticists have developed a variety of models that can produce stable polymorphisms. In one of the earliest models, Owen () demonstrated that differences in selectio...

journal_title：Molecular ecology

authors： Meisel RP

更新日期：2018-09-01 00:00:00

abstract：:The Southern Ocean contains some of the most isolated islands on Earth, and fundamental questions remain regarding their colonization and the connectivity of their coastal biotas. Here, we conduct a genetic investigation into the Cellana strigilis (limpet) complex that was originally classified based on morphological ...

journal_title：Molecular ecology

authors： Reisser CM,Wood AR,Bell JJ,Gardner JP

更新日期：2011-08-01 00:00:00

abstract：:Ecologists are increasingly interested in quantifying consumer diets based on food DNA in dietary samples and high-throughput sequencing of marker genes. It is tempting to assume that food DNA sequence proportions recovered from diet samples are representative of consumer's diet proportions, despite the fact that capt...

journal_title：Molecular ecology

authors： Thomas AC,Jarman SN,Haman KH,Trites AW,Deagle BE

更新日期：2014-08-01 00:00:00

abstract：:Phenotypic plasticity occurs at a variety of timescales, but little is known about the degree to which plastic responses at different timescales are associated with similar underlying molecular processes, which is critical for assessing the effects of plasticity on evolutionary trajectories. To address this issue, we ...

journal_title：Molecular ecology

authors： Metzger DCH,Schulte PM

更新日期：2018-05-01 00:00:00

abstract：:Effects of habitat fragmentation on genetic diversity vary among species. This may be attributed to the interacting effects of species traits and landscape structure. While widely distributed and abundant species are often considered less susceptible to fragmentation, this may be different if they are small sized and ...

journal_title：Molecular ecology

authors： Lange R,Durka W,Holzhauer SI,Wolters V,Diekötter T

更新日期：2010-11-01 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：:Possible effects of habitat fragmentation on the population genetics of a species of wolf spider (Lycosidae) from remnant Callitris woodland in the wheat belt of central western New South Wales in Australia are examined. Single-strand conformational analysis of mitochondrial cytochrome oxidase (subunit 1) was used to ...

journal_title：Molecular ecology

authors： Colgan DJ,Brown S,Major RE,Christie F,Gray MR,Cassis G

更新日期：2002-11-01 00:00:00

abstract：:Cichlid fish are well known for their high speciation rates, which are usually accompanied by spectacular and rapid diversification in eco-morphological and secondary sexual traits. This is best illustrated by the famous repeated explosive radiations in the African Great Lakes Tanganyika, Malawi and Victoria, each lak...

journal_title：Molecular ecology

authors： Pinho C,Faria R

更新日期：2016-04-01 00:00:00

abstract：:Cysteine plays essential biological roles, but excessive amounts produce cellular oxidative stress. Cysteine metabolism is mainly mediated by the enzymes cysteine dioxygenase and γ-glutamylcysteine synthetase, respectively coded by the genes CDO1 and GCLC. Here we test a new hypothesis posing that the synthesis of the...

journal_title：Molecular ecology

authors： Rodríguez-Martínez S,Márquez R,Inácio Â,Galván I

更新日期：2019-03-01 00:00:00

abstract：:The factors that control the assembly and composition of endophyte communities across plant hosts remains poorly understood. This is especially true for endophyte communities inhabiting inner tree bark, one of the least studied components of the plant microbiome. Here, we test the hypothesis that bark of different tre...

journal_title：Molecular ecology

authors： Pellitier PT,Zak DR,Salley SO

更新日期：2019-12-01 00:00:00

abstract：:Individual-based assignment tests are now standard tools in molecular ecology and have several applications, including the study of dispersal. The measurement of natal dispersal is vital to understanding the ecology of many species, yet the accuracy of assignment tests in situations where natal dispersal is common rem...

journal_title：Molecular ecology

authors： Berry O,Tocher MD,Sarre SD

更新日期：2004-03-01 00:00:00

abstract：:Phytophthora ramorum (Oomycetes) is an emerging plant pathogen in forests in southwestern Oregon (Curry County). Moreover, since 2003 it has been repeatedly isolated from plants in Oregon nurseries. In this study, we analysed the genetic diversity of the P. ramorum population in Oregon from 2001 to 2004 by using micro...

journal_title：Molecular ecology

authors： Prospero S,Hansen EM,Grünwald NJ,Winton LM

更新日期：2007-07-01 00:00:00

abstract：:We reanalysed published data to evaluate whether climate and habitat are barriers to dispersal in one of the most mobile and widely distributed mammals, the grey wolf (Canis lupus). Distance-based redundancy analysis (dbRDA) was used to examine the amount of variation in genetic distances that could be explained by an...

journal_title：Molecular ecology

authors： Geffen E,Anderson MJ,Wayne RK

更新日期：2004-08-01 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：:Noninvasive samples are useful for molecular genetic analyses of wild animal populations. However, the low DNA content of such samples makes DNA amplification difficult, and there is the potential for erroneous results when one of two alleles at heterozygous microsatellite loci fails to be amplified. In this study we ...

journal_title：Molecular ecology

authors： Morin PA,Chambers KE,Boesch C,Vigilant L

更新日期：2001-07-01 00:00:00

abstract：:One of the challenges of comparative genomics is to identify specific genetic changes associated with the evolution of a novel adaptation or trait. We need to be able to disassociate the genes involved with a particular character from all the other genetic changes that take place as lineages diverge. Here we show that...

journal_title：Molecular ecology

authors： Filatov V,Dowdle J,Smirnoff N,Ford-Lloyd B,Newbury HJ,Macnair MR

更新日期：2006-09-01 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：:Coastal marine ecosystems world-wide are threatened by invasions of nonindigenous species. The ubiquity of marine sibling species identifiable only by genetic analysis suggests that many invasions are cryptic and therefore undetected, causing an underestimation of the actual number and impacts of invading species. We ...

journal_title：Molecular ecology

authors： Geller JB,Walton ED,Grosholz ED,Ruiz GM

更新日期：1997-10-01 00:00:00

abstract：:Genetic variation is often arrayed in latitudinal or altitudinal clines, reflecting either adaptation along environmental gradients, migratory routes, or both. For forest trees, climate is one of the most important drivers of adaptive phenotypic traits. Correlations of single and multilocus genotypes with environmenta...

journal_title：Molecular ecology

authors： Eckert AJ,Bower AD,González-Martínez SC,Wegrzyn JL,Coop G,Neale DB

更新日期：2010-09-01 00:00:00

abstract：:Experimental evolution (EE) combined with whole-genome sequencing (WGS) has become a compelling approach to study the fundamental mechanisms and processes that drive evolution. Most EE-WGS studies published to date have used microbes, owing to their ease of propagation and manipulation in the laboratory and relatively...

journal_title：Molecular ecology

authors： Dettman JR,Rodrigue N,Melnyk AH,Wong A,Bailey SF,Kassen R

更新日期：2012-05-01 00:00:00