Minimal increase in genetic diversity enhances predation resistance.

abstract：:Most plant species are recent or ancient polyploids (displaying at least one round of genome duplication in their history). Cultivated species (e.g. wheat, cotton, canola, sugarcane, coffee) and invasive species are often relatively recent polyploids, and frequently of hybrid origin (i.e. allopolyploids). Despite the ...

journal_title：Molecular ecology

authors： Salmon A,Ainouche ML

更新日期：2010-01-01 00:00:00

abstract：:Individuals are generally predicted to avoid inbreeding because of detrimental fitness effects. However, several recent studies have shown that limited inbreeding is tolerated by some vertebrate species. Here, we examine the costs and benefits of inbreeding in a largely polygynous rodent, the yellow-bellied marmot (Ma...

journal_title：Molecular ecology

authors： Olson LE,Blumstein DT,Pollinger JR,Wayne RK

更新日期：2012-02-01 00:00:00

abstract：:Due to their maternal mode of inheritance, mitochondrial markers can be regarded as almost 'ideal' tools in evolutionary studies of conifer populations. In the present study, polymorphism was analysed at one mitochondrial intron (nad 1, exon B/C) in 23 native European Pinus sylvestris populations. In a preliminary scr...

journal_title：Molecular ecology

authors： Soranzo N,Alia R,Provan J,Powell W

更新日期：2000-09-01 00:00:00

abstract：:The Haute Island mouflon (Ovis aries) population is isolated on one small (6.5 km2) island of the remote Kerguelen archipelago. Given a promiscuous mating system, a cyclic demography and a strong female-biased sex ratio after population crashes, we expected a low effective population size (Ne). We estimated Ne using d...

journal_title：Molecular ecology

authors： Kaeuffer R,Coltman DW,Chapuis JL,Réale D,Pontier D

更新日期：2007-11-01 00:00:00

abstract：:Common groundsel, Senecio vulgaris (Asteraceae), is a highly selfing semelparous ephemeral weed that belongs to the few plant species in central Europe capable of growing, flowering and fruiting all year round. In temperate climates, flowering S. vulgaris cohorts were found to appear up to three times per year. Using ...

journal_title：Molecular ecology

authors： Haldimann P,Steinger T,Müller-Schärer H

更新日期：2003-10-01 00:00:00

abstract：:Habitat loss and fragmentation often reduce gene flow and genetic diversity in plants by disrupting the movement of pollen and seed. However, direct comparisons of the contributions of pollen vs. seed dispersal to genetic variation in fragmented landscapes are lacking. To address this knowledge gap, we partitioned the...

journal_title：Molecular ecology

authors： Browne L,Karubian J

更新日期：2018-08-01 00:00:00

abstract：:Lady's slipper orchids (Cypripedium spp.) are rare terrestrial plants that grow throughout the temperate Northern Hemisphere. Like all orchids, they require mycorrhizal fungi for germination and seedling nutrition. The nutritional relationships of adult Cypripedium mycorrhizae are unclear; however, Cypripedium distrib...

journal_title：Molecular ecology

authors： Shefferson RP,Weiss M,Kull T,Taylor DL

更新日期：2005-02-01 00:00:00

abstract：:New methods for better identification of timber geographical origin would constitute an important technical element in the forest industry, for phytosanitary certification procedures or in the chain of custody developed for the certification of timber from sustainably managed forests. In the case of the European white...

journal_title：Molecular ecology

authors： Deguilloux MF,Pemonge MH,Bertel L,Kremer A,Petit RJ

更新日期：2003-06-01 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：: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：: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

abstract：:It has been hypothesized that salmonids use olfactory cues to return to their natal rivers and streams. However, the key components of the molecular pathway involved in imprinting and homing are still unknown. If odorants are involved in salmon homing migration, then olfactory receptors should play a critical role in ...

journal_title：Molecular ecology

authors： Johnstone KA,Lubieniecki KP,Koop BF,Davidson WS

更新日期：2011-10-01 00:00:00

abstract：:Kinkajou social groups generally consist of one adult female, two males, one subadult and one juvenile. Based on analysis of variation in 11 microsatellite loci, we assess the degree of kinship within and between four social groups totaling 25 kinkajous. We use exclusion and likelihood analyses to assign parents for s...

journal_title：Molecular ecology

authors： Kays RW,Gittleman JL,Wayne RK

更新日期：2000-06-01 00:00:00

abstract：:Species may often exhibit geographic variation in population genetic structure due to contemporary and historical variation in population size and gene flow. Here, we test the predictions that populations on the margins of a species' distribution contain less genetic variation and are more differentiated than populati...

journal_title：Molecular ecology

authors： Hamilton JA,Eckert CG

更新日期：2007-04-01 00:00:00

abstract：:Aphis gossypii is an aphid species that is found throughout the world and is extremely polyphagous. It is considered a major pest of cotton and cucurbit species. In Europe, A. gossypii is assumed to reproduce exclusively by apomictic parthenogenesis. The present study investigates the genetic diversity of A. gossypii ...

journal_title：Molecular ecology

authors： Fuller SJ,Chavigny P,Lapchin L,Vanlerberghe-Masutti F

更新日期：1999-11-01 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：:A simple method is presented for developing polymorphic, anonymous DNA markers suitable for population genetic studies. Anonymous DNA fragments are screened for sequence variability using a common mutation detection technique (single strand conformation polymorphism analysis; SSCP) and locus-specific PCR primers are d...

journal_title：Molecular ecology

authors： Bagley MJ,Medrano JF,Gall GA

更新日期：1997-04-01 00:00:00

abstract：:Determining how genetic diversity is structured between populations that span the divergence continuum from populations to biological species is key to understanding the generation and maintenance of biodiversity. We investigated genetic divergence and gene flow in eight lineages of birds with a trans-Beringian distri...

journal_title：Molecular ecology

authors： McLaughlin JF,Faircloth BC,Glenn TC,Winker K

更新日期：2020-09-01 00:00:00

abstract：:The mummichog, Fundulus heteroclitus, exhibits extensive latitudinal clinal variation in a number of physiological and biochemical traits, coupled with phylogeographical patterns at mitochondrial and nuclear DNA loci that suggest a complicated history of spatially variable selection and secondary intergradation. This ...

journal_title：Molecular ecology

authors： Adams SM,Lindmeier JB,Duvernell DD

更新日期：2006-04-01 00:00:00

abstract：:A new polymerase chain reaction-based screening method for microsatellites is presented. Using this method, we isolated 12 microsatellite loci from Drosophila buzzatii, two of which were X-linked. We applied the other 10 microsatellite loci to the analysis of genetic variation in five natural populations of D. buzzati...

journal_title：Molecular ecology

authors： Frydenberg J,Pertoldi C,Dahlgaard J,Loeschcke V

更新日期：2002-02-01 00:00:00

abstract：:As natural selection must act on underlying genetic variation, discovering the number and location of loci under the influence of selection is imperative towards understanding adaptive divergence in evolving populations. Studies employing genome scans have hypothesized that the action of divergent selection should red...

journal_title：Molecular ecology

authors： Rogers SM,Bernatchez L

更新日期：2005-02-01 00:00:00

abstract：:New technologies promise to revolutionize the field of molecular ecology. This technological progress comes with its own set of challenges. Among the most important ones is the analysis and interpretation of the data in a way that tells us about the molecular causes of the phenotype of interest and its consequences. I...

journal_title：Molecular ecology

authors： Landry CR,Aubin-Horth N

更新日期：2010-12-01 00:00:00

abstract：:The climbing orchid Erythrorchis altissima is the largest mycoheterotroph in the world. Although previous in vitro work suggests that E. altissima has a unique symbiosis with wood-decaying fungi, little is known about how this giant orchid meets its carbon and nutrient demands exclusively via mycorrhizal fungi. In thi...

journal_title：Molecular ecology

authors： Ogura-Tsujita Y,Gebauer G,Xu H,Fukasawa Y,Umata H,Tetsuka K,Kubota M,Schweiger JM,Yamashita S,Maekawa N,Maki M,Isshiki S,Yukawa T

更新日期：2018-03-01 00:00:00

abstract：:In certain cases, a species may have access to important genetic variation present in a related species via adaptive introgression. These novel alleles may interact with their new genetic background, resulting in unexpected phenotypes. In this study, we describe a selective sweep on standing variation on the X chromos...

journal_title：Molecular ecology

authors： Main BJ,Lee Y,Collier TC,Norris LC,Brisco K,Fofana A,Cornel AJ,Lanzaro GC

更新日期：2015-10-01 00:00:00

abstract：:Most landscape genetic studies assess the impact of landscape elements on species' dispersal and gene flow. Many of these studies perform their analysis on all possible population pairs in a study area and do not explicitly consider the effects of spatial scale and population network topology on their results. Here, w...

journal_title：Molecular ecology

authors： Keller D,Holderegger R,van Strien MJ

更新日期：2013-05-01 00:00:00

abstract：:Many genes increase coding capacity by alternate exon usage. The gene encoding the insect nicotinic acetylcholine receptor (nAChR) α6 subunit, target of the bio-insecticide spinosad, is one example of this and expands protein diversity via alternative splicing of mutually exclusive exons. Here, we show that spinosad r...

journal_title：Molecular ecology

authors： Berger M,Puinean AM,Randall E,Zimmer CT,Silva WM,Bielza P,Field LM,Hughes D,Mellor I,Hassani-Pak K,Siqueira HA,Williamson MS,Bass C

更新日期：2016-11-01 00:00:00

abstract：:Random amplified polymorphic DNA (RAPD) fragments were prepared from samples of Calonectris diomedea (Cory's shearwater, Aves) and Haemonchus contortus (Nematoda) DNA by polymerase chain reaction (PCR) using decamers containing two restriction enzyme sites as primers. Six of 19 studied RAPD fragments probably originat...

journal_title：Molecular ecology

authors： Rabouam C,Comes AM,Bretagnolle V V,Humbert JF,Periquet G,Bigot Y

更新日期：1999-03-01 00:00:00

abstract：:We explore population genetic structure in phyllostomid bats (Ardops nichollsi, Brachyphylla cavernarum and Artibeus jamaicensis) from the northern Lesser Antilles by investigating the degree to which island populations are genetically differentiated. Our hypothesis, that the island populations are genetically distinc...

journal_title：Molecular ecology

authors： Carstens BC,Sullivan J,Davalos LM,Larsen PA,Pedersen SC

更新日期：2004-09-01 00:00:00

abstract：:To explore how biogeography, parasite life history and host vagility influences evolutionary codivergences, we followed a comparative phylogeography approach using a host-specific nonpermanent mite, Laelaps giganteus, that occurs on four rodent species within the genus Rhabdomys. A mtDNA COI haplotype network derived ...

journal_title：Molecular ecology

authors： Engelbrecht A,Matthee S,du Toit N,Matthee CA

更新日期：2016-02-01 00:00:00

abstract：:Spatial discordance between primary and effective dispersal in plant populations indicates that postdispersal processes erase the seed rain signal in recruitment patterns. Five different models were used to test the spatial concordance of the primary and effective dispersal patterns in a European beech (Fagus sylvatic...

journal_title：Molecular ecology

authors： Millerón M,López de Heredia U,Lorenzo Z,Alonso J,Dounavi A,Gil L,Nanos N

更新日期：2013-03-01 00:00:00