Diversity and divergence patterns in regulatory genes suggest differential gene flow in recently derived species of the Hawaiian silversword alliance adaptive radiation (Asteraceae).

abstract：:Crossing over is well known to have profound effects on patterns of genetic diversity and genome evolution. Far less direct attention has been paid to another distinct outcome of meiotic recombination: noncrossover gene conversion (NCGC). Crossing over and NCGC both shuffle combinations of alleles, and this degradatio...

journal_title：Molecular ecology

authors： Korunes KL,Noor MA

更新日期：2017-01-01 00:00:00

abstract：:Naturally occurring heat shock (HS) during pupation induces abnormal wing development in Drosophila; we examined factors affecting the severity of this induction. The proportion of HS-surviving adults with abnormal wings varied with HS duration and intensity, and with the pupal age or stage at HS administration. Pretr...

journal_title：Molecular ecology

authors： Williams KD,Helin AB,Posluszny J,Roberts SP,Feder ME

更新日期：2003-05-01 00:00:00

abstract：:Local adaptation can be a fundamental component of speciation, but its dynamics in relation to gene flow are not necessarily straightforward. Herbivorous taxa with localized host plant or habitat specialization across their geographic range are ideal models for investigating the patterns and constraints of local adapt...

journal_title：Molecular ecology

authors： Dupuis JR,Peigler RS,Geib SM,Rubinoff D

更新日期：2018-11-01 00:00:00

abstract：:Many parasites manipulate their hosts' phenotype. In particular, parasites with complex life cycles take control of their intermediate hosts' behaviour and life history to increase transmission to their definitive host. The proximate mechanisms underlying these parasite-induced alterations are poorly understood. The c...

journal_title：Molecular ecology

authors： Feldmeyer B,Mazur J,Beros S,Lerp H,Binder H,Foitzik S

更新日期：2016-01-01 00:00:00

abstract：:The utility of genetic measures for kinship reconstruction in polysomic species is not well evaluated. We developed a framework to test hypotheses about estimating breeding population size indirectly from collections of outmigrating green sturgeon juveniles. We evaluated a polysomic dataset, in allelic frequency and p...

journal_title：Molecular ecology

authors： Israel JA,May B

更新日期：2010-03-01 00:00:00

abstract：:High-throughput DNA methods hold great promise for the study of taxonomically intractable mesofauna of the soil. Here, we assess species diversity and community structure in a phylogenetic framework, by sequencing total DNA from bulk specimen samples and assembly of mitochondrial genomes. The combination of mitochondr...

journal_title：Molecular ecology

authors： Andújar C,Arribas P,Ruzicka F,Crampton-Platt A,Timmermans MJ,Vogler AP

更新日期：2015-07-01 00:00:00

abstract：:Many insect groups have obligate associations with primary endosymbionts: mutualistic bacteria that are maternally transmitted and derived from an ancient infection. Often, the same insects are hosts to 'secondary' bacterial symbionts which are maternally transmitted but relatively labile within host lineages. To expl...

journal_title：Molecular ecology

authors： Sandström JP,Russell JA,White JP,Moran NA

更新日期：2001-01-01 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：:Plant mating systems are known to influence population genetic structure because pollen and seed dispersal are often spatially restricted. However, the reciprocal outcomes of population structure on the dynamics of polymorphic mating systems have received little attention. In gynodioecious sea beet (Beta vulgaris ssp....

journal_title：Molecular ecology

authors： DE Cauwer I,Dufay M,Cuguen J,Arnaud JF

更新日期：2010-04-01 00:00:00

abstract：:Genome reduction is a general process that has been studied in numerous symbiotic bacteria associated with insects. We investigated the last stages of genome degradation in Blochmannia floridanus, a mutualistic bacterial endosymbiont of the ant Camponotus floridanus. We determined the tempo (rates of insertion and del...

journal_title：Molecular ecology

authors： Gómez-Valero L,Latorre A,Gil R,Gadau J,Feldhaar H,Silva FJ

更新日期：2008-10-01 00:00:00

abstract：:Replicated ecological gradients are prime systems to study processes of molecular evolution underlying ecological divergence. Here, we investigated the repeated adaptation of the neotropical fish Poecilia mexicana to habitats containing toxic hydrogen sulphide (H2 S) and compared two population pairs of sulphide-adapt...

journal_title：Molecular ecology

authors： Pfenninger M,Patel S,Arias-Rodriguez L,Feldmeyer B,Riesch R,Plath M

更新日期：2015-11-01 00:00:00

abstract：:A number of evolutionary mechanisms have been suggested for generating low but significant genetic structuring among marine fish populations. We used nine microsatellite loci and recently developed methods in landscape genetics and coalescence-based estimation of historical gene flow and effective population sizes to ...

journal_title：Molecular ecology

authors： Hemmer-Hansen J,Nielsen EE,Grønkjaer P,Loeschcke V

更新日期：2007-08-01 00:00:00

abstract：:Two species of horned lizards are sympatric along the periphery of the Salton Trough. Phrynosoma mcallii, endemic to the trough, is of conservation concern because its limited habitat has been fragmented by human activities. A more common and widespread species, Phrynosoma platyrhinos, occurs around the periphery of t...

journal_title：Molecular ecology

authors： Mulcahy DG,Spaulding AW,Mendelson JR 3rd,Brodie ED Jr

更新日期：2006-06-01 00:00:00

abstract：:Contemporary adaptation of plant feeding insects to introduced hosts provides clear cases of ecologically based population divergence. In most cases the mechanisms permitting rapid differentiation are not well known. Here we study morphological and genetic variation associated with recent shifts by the Australian soap...

journal_title：Molecular ecology

authors： Andres JA,Thampy PR,Mathieson MT,Loye J,Zalucki MP,Dingle H,Carroll SP

更新日期：2013-12-01 00:00:00

abstract：:Understanding the pattern of connectivity among populations is crucial for the development of realistic and spatially explicit population models in marine systems. Here we analysed variation at eight microsatellite loci to assess the genetic structure and to infer patterns of larval dispersal for a brooding coral, Ser...

journal_title：Molecular ecology

authors： Underwood JN,Smith LD,Van Oppen MJ,Gilmour JP

更新日期：2007-02-01 00:00:00

abstract：:Mounting evidence suggests that average telomere length reflects previous stress and predicts subsequent survival across vertebrate species. In humans, leucocyte telomere length (LTL) is consistently shorter during adulthood in males than in females, although the causes of this sex difference and its generality to oth...

journal_title：Molecular ecology

authors： Watson RL,Bird EJ,Underwood S,Wilbourn RV,Fairlie J,Watt K,Salvo-Chirnside E,Pilkington JG,Pemberton JM,McNeilly TN,Froy H,Nussey DH

更新日期：2017-06-01 00:00:00

abstract：:In lichen symbiosis, fungal and algal partners form close associations, often codispersed by vegetative propagules. Due to the particular interdependence, processes such as colonization, dispersal or genetic drift are expected to result in congruent patterns of genetic structure in the symbionts. To study the populati...

journal_title：Molecular ecology

authors： Widmer I,Dal Grande F,Excoffier L,Holderegger R,Keller C,Mikryukov VS,Scheidegger C

更新日期：2012-12-01 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：:The Leptynia hispanica stick insect species complex includes bisexuals, triploid and tetraploid parthenogenetic populations, suggesting that polyploidy has played a central role in the evolution of this complex. An analysis of karyotype, mitochondrial DNA (cox2) and nuclear DNA (ef1-alpha) markers was carried out to c...

journal_title：Molecular ecology

authors： Ghiselli F,Milani L,Scali V,Passamonti M

更新日期：2007-10-01 00:00:00

abstract：:We used behavioural observations and mitochondrial DNA (mtDNA) sequence analysis to examine demographic and genetic structure within and among home-range groups of desert bighorn sheep (Ovis canadensis) ewes in the Peninsular Ranges of southern California, USA. We identified substantial genetic variation in the first ...

journal_title：Molecular ecology

authors： Boyce WM,Ramey RR 2nd,Rodwell TC,Rubin ES,Singer RS

更新日期：1999-01-01 00:00:00

abstract：:The Monotropoideae (Ericaceae) are non-photosynthetic angiosperms that obtain fixed carbon from basidiomycete ectomycorrhizal fungi. In previous work, we showed that each plant species is associated with a single genus or a set of closely related genera of ectomycorrhizal fungi. Here we show that the level of specific...

journal_title：Molecular ecology

authors： Bidartondo MI,Bruns TD

更新日期：2002-03-01 00:00:00

abstract：:Understanding how immune genetic variation is shaped by selective and neutral processes in wild populations is of prime importance in both evolutionary biology and epidemiology. The European roe deer (Capreolus capreolus) has considerably expanded its distribution range these last decades, notably by colonizing agricu...

journal_title：Molecular ecology

authors： Quéméré E,Galan M,Cosson JF,Klein F,Aulagnier S,Gilot-Fromont E,Merlet J,Bonhomme M,Hewison AJ,Charbonnel N

更新日期：2015-08-01 00:00:00

abstract：:In this issue of Molecular Ecology, Morick et al. (2011) present an interesting study of acquisition and transmission of Bartonella by Xenopsylla ramesis fleas (Fig. 1) which infest naturally wild desert rodents from the Negev desert. A major issue with vector-borne diseases and vector-borne infection is to know wheth...

journal_title：Molecular ecology

authors： Chomel BB

更新日期：2011-07-01 00:00:00

abstract：:We combine kinship estimates with traditional F-statistics to explain contemporary drivers of population genetic differentiation despite high gene flow. We investigate range-wide population genetic structure of the California spiny (or red rock) lobster (Panulirus interruptus) and find slight, but significant global p...

journal_title：Molecular ecology

authors： Iacchei M,Ben-Horin T,Selkoe KA,Bird CE,García-Rodríguez FJ,Toonen RJ

更新日期：2013-07-01 00:00:00

abstract：:Interbreeding species often produce low-fitness hybrids due to genetic incompatibilities between parental genomes. Whether these incompatibilities reflect fixed allelic differences between hybridizing species, or, alternatively, standing variants that segregate within them, remains unknown for many natural systems. Ye...

journal_title：Molecular ecology

authors： Seidl F,Levis NA,Jones CD,Monroy-Eklund A,Ehrenreich IM,Pfennig KS

更新日期：2019-10-01 00:00:00

abstract：:Single nucleotide polymorphisms (SNPs) are about to become one of the most popular genetic markers for genetic model organisms. To test the usefulness of SNPs for estimating genetic diversity, we surveyed three genomic regions in two Drosophila melanogaster populations, one from Africa and one European, collected in A...

journal_title：Molecular ecology

authors： Schlötterer C,Harr B

更新日期：2002-05-01 00:00:00

abstract：:Although many sharks begin their life confined in nursery habitats, it is unknown how rapidly they disperse away from their natal area once they leave the nursery. We examine this issue in immature lemon sharks (Negaprion brevirostris) from the time they leave the nursery (approximately age 3) at a subtropical island ...

journal_title：Molecular ecology

authors： Chapman DD,Babcock EA,Gruber SH,Dibattista JD,Franks BR,Kessel SA,Guttridge T,Pikitch EK,Feldheim KA

更新日期：2009-08-01 00:00:00

abstract：:Carrion beetles (Coleoptera, Silphidae) are well known for their behaviour of exploiting vertebrate carcasses for nutrition. While species in the subfamily Silphinae feed on large carcasses and on larvae of competing scavengers, the Nicrophorinae are unique in monopolizing, burying and defending small carrion, and pro...

journal_title：Molecular ecology

authors： Kaltenpoth M,Steiger S

更新日期：2014-03-01 00:00:00

abstract：:Medicago citrina is an endangered western Mediterranean endemic that grows only on small islets of the Balearic archipelago and off the eastern Spanish coast. Only 10 isolated subpopulations are currently known (four from Ibiza, three from Cabrera, two from Columbretes and one from an offshore islet in northern Alican...

journal_title：Molecular ecology

authors： Juan A,Crespo MB,Cowan RS,Lexer C,Fay MF

更新日期：2004-09-01 00:00:00

abstract：:A common challenge in phylogenetic reconstruction is to find enough suitable genomic markers to reliably trace splitting events with short internodes. Here, we present phylogenetic analyses based on genomewide single-nucleotide polymorphisms (SNPs) of an enigmatic avian radiation, the subspecies complex of Afrocanaria...

journal_title：Molecular ecology

authors： Gohli J,Leder EH,Garcia-Del-Rey E,Johannessen LE,Johnsen A,Laskemoen T,Popp M,Lifjeld JT

更新日期：2015-01-01 00:00:00