Independent origins and horizontal transfer of bacterial symbionts of aphids.

abstract：:Many studies propose that Quaternary climatic cycles contracted and/or expanded the ranges of species and biomes. Strong expansion-contraction dynamics of biomes presume concerted demographic changes of associated fauna. The analysis of temporal concordance of demographic changes can be used to test the influence of Q...

journal_title：Molecular ecology

authors： Gehara M,Garda AA,Werneck FP,Oliveira EF,da Fonseca EM,Camurugi F,Magalhães FM,Lanna FM,Sites JW Jr,Marques R,Silveira-Filho R,São Pedro VA,Colli GR,Costa GC,Burbrink FT

更新日期：2017-09-01 00:00:00

abstract：:Episodes of trans-Arctic faunal exchange and isolation between the north Pacific and Atlantic ocean basins have been implicated as important historic geological events contributing to extant patterns of genetic diversity and structure in Holarctic faunas. We made a further test of the significance of such biogeographi...

journal_title：Molecular ecology

authors： Taylor EB,Dodson JJ

更新日期：1994-06-01 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：:Understanding the spatial structure of a population is critical for effective assessment and management. However, direct observation of spatial dynamics is generally difficult, particularly for marine mammals. California sea lions (Zalophus californianus) are polygynous pinnipeds distributed along the Pacific coast of...

journal_title：Molecular ecology

authors： González-Suárez M,Flatz R,Aurioles-Gamboa D,Hedrick PW,Gerber LR

更新日期：2009-03-01 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：:The cellular stress response has long been the primary model for studying the molecular basis of thermal adaptation, yet the link between gene expression, RNA metabolism and physiological responses to thermal stress remains largely unexplored. We address this by comparing the transcriptional and physiological response...

journal_title：Molecular ecology

authors： Telonis-Scott M,Clemson AS,Johnson TK,Sgrò CM

更新日期：2014-12-01 00:00:00

abstract：:Inbreeding can have negative consequences on population and individual fitness, which could be counteracted by inbreeding avoidance mechanisms. However, the inbreeding risk and inbreeding avoidance mechanisms in endangered species are less studied. The giant panda, a solitary and threatened species, lives in many smal...

journal_title：Molecular ecology

authors： Hu Y,Nie Y,Wei W,Ma T,Van Horn R,Zheng X,Swaisgood RR,Zhou Z,Zhou W,Yan L,Zhang Z,Wei F

更新日期：2017-10-01 00:00:00

abstract：:Antagonistic co-evolution between hosts and parasites can lead to local adaptation (LA) such that parasite fitness is greatest in sympatric hosts (or vice versa). The magnitude of LA typically increases with geographical distance, which is assumed to be because genetic (and hence phenotypic) distance increases with ge...

journal_title：Molecular ecology

authors： Scanlan PD,Hall AR,Buckling A

更新日期：2017-04-01 00:00:00

abstract：:This study presents genetic evidence that whale sharks, Rhincodon typus, are comprised of at least two populations that rarely mix and is the first to document a population expansion. Relatively high genetic structure is found when comparing sharks from the Gulf of Mexico with sharks from the Indo-Pacific. If mixing o...

journal_title：Molecular ecology

authors： Vignaud TM,Maynard JA,Leblois R,Meekan MG,Vázquez-Juárez R,Ramírez-Macías D,Pierce SJ,Rowat D,Berumen ML,Beeravolu C,Baksay S,Planes S

更新日期：2014-05-01 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：:Organisms often respond to environmental changes by producing alternative phenotypes. Epigenetic processes such as DNA methylation may contribute to environmentally induced phenotypic variation by modifying gene expression. Changes in DNA methylation, unlike DNA mutations, can be influenced by the environment; they ar...

journal_title：Molecular ecology

authors： Angers B,Castonguay E,Massicotte R

更新日期：2010-04-01 00:00:00

abstract：:The process of discovering species is a fundamental responsibility of systematics. Recently, there has been a growing interest in coalescent-based methods of species delimitation aimed at objectively identifying species early in the divergence process. However, few empirical studies have compared these new methods wit...

journal_title：Molecular ecology

authors： McKay BD,Mays HL Jr,Wu Y,Li H,Yao CT,Nishiumi I,Zou F

更新日期：2013-10-01 00:00:00

abstract：:Highly expressed proteins can exhibit relatively small material costs, in terms of the quantities of carbon (C), nitrogen (N) or sulphur (S) atoms they contain. This 'elemental sparing' probably reflects selection to reduce the quantities of potentially growth-limiting elements in abundant proteins, but the evolutiona...

journal_title：Molecular ecology

authors： Bragg JG,Quigg A,Raven JA,Wagner A

更新日期：2012-05-01 00:00:00

abstract：:Root-associated fungi, particularly ectomycorrhizal fungi (EMF), are critical symbionts of all boreal tree species. Although climatically driven increases in wildfire frequency and extent have been hypothesized to increase vegetation transitions from tundra to boreal forest, fire reduces mycorrhizal inoculum. Therefor...

journal_title：Molecular ecology

authors： Hewitt RE,Chapin FS 3rd,Hollingsworth TN,Taylor DL

更新日期：2017-07-01 00:00:00

abstract：:Army ants are among the top arthropod predators and considered keystone species in tropical ecosystems. During daily mass raids with many thousand workers, army ants hunt live prey, likely exerting strong top-down control on prey species. Many tropical sites exhibit a high army ant species diversity (>20 species), sug...

journal_title：Molecular ecology

authors： Hoenle PO,Blüthgen N,Brückner A,Kronauer DJC,Fiala B,Donoso DA,Smith MA,Ospina Jara B,von Beeren C

更新日期：2019-05-01 00:00:00

abstract：:The phylogeographical history of the rare marsh orchid Anacamptis palustris (Orchidaceae) was reconstructed using highly polymorphic chloroplast minisatellite and microsatellite loci. Allelic variation at chloroplast microsatellite loci was due to length variation in poly(A/T) repeats and was informative on a regional...

journal_title：Molecular ecology

authors： Cozzolino S,Cafasso D,Pellegrino G,Musacchio A,Widmer A

更新日期：2003-10-01 00:00:00

abstract：:There is a long tradition of artificially stocking lakes and rivers with fish in the hope to increase the quality and amount of fish that can be harvested. The animals used for stocking often originate in distant hatcheries or hatcheries that breed fish from remote regions. This stocking practice could have effects on...

journal_title：Molecular ecology

authors： Englbrecht CC,Schliewen U,Tautz D

更新日期：2002-06-01 00:00:00

abstract：:Climatic oscillations during the last few million years had well-documented effects on the distributions and genomes of temperate plants and animals, but much less is known of their impacts on tropical and subtropical species. In contrast to Europe and North America, ice-sheets did not cover most of China during glaci...

journal_title：Molecular ecology

authors： Chen Y,Compton SG,Liu M,Chen XY

更新日期：2012-04-01 00:00:00

abstract：:Many amphibian species are known to form leks during breeding season, yet it has seldom been tested which evolutionary forces are likely to act on lek formation in this taxon. We tested the kin selection hypothesis for lek formation by using eight variable microsatellite loci to compare the genetic relationship of 203...

journal_title：Molecular ecology

authors： Knopp T,Heimovirta M,Kokko H,Merilä J

更新日期：2008-05-01 00:00:00

abstract：:The grey wolf (Canis lupus) and coyote (C. latrans) are highly mobile carnivores that disperse over great distances in search of territories and mates. Previous genetic studies have shown little geographical structure in either species. However, population genetic structure is also influenced by past isolation events ...

journal_title：Molecular ecology

authors： Vila C,Amorim IR,Leonard JA,Posada D,Castroviejo J,Petrucci-Fonseca F,Crandall KA,Ellegren H,Wayne RK

更新日期：1999-12-01 00:00:00

abstract：:Polyploidy (whole-genome duplication) has contributed significantly to angiosperm evolution and diversification. To date, it has been found that most polyploids are the result of multiple formation events, which may contribute to genetic diversity and affect interfertility among polyploid lineages of independent origi...

journal_title：Molecular ecology

authors： Modliszewski JL,Willis JH

更新日期：2012-11-01 00:00:00

abstract：:During the co-evolutionary arms race between plants and herbivores, insects evolved systematic adaptive plasticity to minimize the chemical defence effects of their host plants. Previous studies mainly focused on the expressional plasticity of enzymes in detoxification and digestion. However, the expressional response...

journal_title：Molecular ecology

authors： Li X,Shi L,Dai X,Chen Y,Xie H,Feng M,Chen Y,Wang H

更新日期：2018-07-01 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：: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：: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：:Determining the genetic structure of tropical bird populations is important for assessing potential genetic effects of future habitat fragmentation and for testing hypotheses about evolutionary mechanisms promoting diversification. Here we used 10 microsatellite DNA loci to describe levels of genetic differentiation f...

journal_title：Molecular ecology

authors： Francisco MR,Gibbs HL,Galetti M,Lunardi VO,Galetti PM Jr

更新日期：2007-12-01 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：:Genetic diversity in experimental, domesticated and wild populations of the related yeasts, Saccharomyces cerevisiae and Saccharomyces paradoxus, has been well described at the global scale. We investigated the population genomics of a local population on a small spatial scale to address two main questions. First, is ...

journal_title：Molecular ecology

authors： Xia W,Nielly-Thibault L,Charron G,Landry CR,Kasimer D,Anderson JB,Kohn LM

更新日期：2017-02-01 00:00:00

abstract：:Abstract The genetic impact of the cultural practice of spat collection and translocation between genetically distinct stocks of black-lipped pearl oyster, Pinctada margaritifera cumingii, was studied by comparing samples collected in the 1980s and 2000s from seven atolls in French Polynesia. An amova revealed homogen...

journal_title：Molecular ecology

authors： Arnaud-Haond S,Vonau V,Bonhomme F,Boudry P,Blanc F,Prou J,Seaman T,Goyard E

更新日期：2004-07-01 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