Genetic dimension of the coevolution of virulence-resistance in Drosophila -- parasitoid wasp relationships.

abstract：:Matrilineal phylogenetic divergence among Atlantic salmon stocks of the Bay of Fundy in south eastern Canada is investigated. Sequence variation in two regions of the mitochondrial ND1 gene, encompassing 710 base pairs, is described for 168 salmon from 11 rivers. Mean overall haplotype and nucleotide diversity (h and ...

journal_title：Heredity

authors： Verspoor E,O'Sullivan M,Arnold AL,Knox D,Amiro PG

更新日期：2002-12-01 00:00:00

abstract：:Correlated multiple testing is widely performed in genetic research, particularly in multilocus analyses of complex diseases. Failure to control appropriately for the effect of multiple testing will either result in a flood of false-positive claims or in true hits being overlooked. Cheverud proposed the idea of adjust...

journal_title：Heredity

authors： Li J,Ji L

更新日期：2005-09-01 00:00:00

abstract：:Genetic data have been widely used to reconstruct the demographic history of populations, including the estimation of migration rates, divergence times and relative admixture contribution from different populations. Recently, increasing interest has been given to the ability of genetic data to distinguish alternative ...

journal_title：Heredity

authors： Sousa VC,Beaumont MA,Fernandes P,Coelho MM,Chikhi L

更新日期：2012-05-01 00:00:00

abstract：:Local patterns of genetic variation were analysed in the land snail Helix aspersa for 32 populations sampled within a patchy agricultural landscape: the polders of the Bay of Mont-Saint-Michel (France). This investigation examined the allele frequencies at four enzymatic markers and five microsatellite loci through th...

journal_title：Heredity

authors： Arnaud JF,Madec L,Guiller A,Deunff J

更新日期：2003-06-01 00:00:00

abstract：:Competition among individuals is central to our understanding of ecology and population dynamics. However, it could also have major implications for the evolution of resource-dependent life history traits (for example, growth, fecundity) that are important determinants of fitness in natural populations. This is becaus...

journal_title：Heredity

authors： Wilson AJ

更新日期：2014-01-01 00:00:00

abstract：:Colour polymorphisms have evolutionary significance for the generation and maintenance of species diversity. Demonstrating heritability of polymorphic traits can be challenging for wild populations of long-lived species because accurate information is required on trait expression and familial relationships. The Austra...

journal_title：Heredity

authors： Dobson AE,Schmidt DJ,Hughes JM

更新日期：2019-09-01 00:00:00

abstract：:We investigated intraspecific and interspecific patterns of paternity in Tribolium castaneum, the flour beetle, by mating females either to pairs of conspecific males or to one conspecific and one heterospecific male of the closely related species, T. freemani. Females of both species store sperm in the spermatheca af...

journal_title：Heredity

authors： Robinson T,Johnson NA,Wade MJ

更新日期：1994-08-01 00:00:00

abstract：:Allele frequency differences between sexes and an excess of heterozygotes in males had suggested that the PEPB-1 locus is sex-linked in chinook salmon (Oncorhynchus tshawytscha). We here estimate less than 1% recombination between PEPB-1 and a growth hormone pseudogene known to be in the sex-determining region (SEX) i...

journal_title：Heredity

authors： Marshall AR,Knudsen KL,Allendorf FW

更新日期：2004-07-01 00:00:00

abstract：:The neotropical fish, Hoplias malabaricus, is well known for its population-specific karyotypic diversity and the variation of its sex chromosomes. Seven karyomorphs (A to G) have been previously described with an XY, X(1)X(2)Y and XY(1)Y(2) sex chromosome system found in karyomorphs B, D and G, respectively. We compa...

journal_title：Heredity

authors： Cioffi MB,Bertollo LA

更新日期：2010-12-01 00:00:00

abstract：:We examined the amount and nature of variation revealed by cDNA-based sequence-tagged-site (STS) markers in Norway spruce (Picea abies (L.) Karst.) using 39 pairs of heterologous primers that were based upon arbitrary genes in black spruce (Picea mariana (Mill.) B.S.P.). A panel of 22 diverse Norway spruce genotypes w...

journal_title：Heredity

authors： Perry DJ,Isabel N,Bousquet J

更新日期：1999-09-01 00:00:00

abstract：:Six populations of Trimerotropis pallidipennis located along an altitudinal gradient in the Antinaco-Los Colorados valley (La Rioja, Argentina), were cytologically analysed. The male karyotype consists of 23 chromosomes (22 + XO) with three long pairs submetacentric, the X-chromosome metacentric and the remaining ones...

journal_title：Heredity

authors： Confalonieri VA,Colombo PC

更新日期：1989-02-01 00:00:00

abstract：:Equilibrium sex ratios have been determined analytically under Wright's island model in order to determine the effect of population structure with limited dispersal. When mating occurs before dispersal, the dispersal rate has little or no effect, and the equilibrium sex ratio remains the same as under complete dispers...

journal_title：Heredity

authors： Bulmer MG

更新日期：1986-02-01 00:00:00

abstract：:In social Hymenoptera, within-colony relatedness is usually high due to the haplodiploid sex-determining system. However, factors such as the presence of multiple reproductive queens (polygyny), multiple queen matings (polyandry) or worker reproduction result in decreased relatedness among workers and the brood they r...

journal_title：Heredity

authors： Timmermans I,Hefetz A,Fournier D,Aron S

更新日期：2008-12-01 00:00:00

abstract：:A model involving a specific pairing of homologous double-stranded nucleic acid molecules is applied to some parts of genetic recombination. The most original features of this application of the model relate to the initiation process, a part of which can be described by a highly compact and symmetrical structure. The ...

journal_title：Heredity

authors： McGavin S

更新日期：1977-08-01 00:00:00

abstract：:Cultural transmission may depend on the non-genetic transfer of information from parent to offspring. The consequences of such cultural transmission for continuous variation are investigated theoretically for randomly mating populations. Cultural inheritance may act on genetical and environmental differences between i...

journal_title：Heredity

authors： Eaves L

更新日期：1976-08-01 00:00:00

abstract：:Volunteers deriving from unharvested seeds of a crop can lead to persistent feral populations and participate in genetic exchanges across the agro-ecosystem, both between crop varieties and between crops and their wild relatives. A first step to understand the importance of volunteers is to characterize their capacity...

journal_title：Heredity

authors： Ostrowski MF,Rousselle Y,Tsitrone A,Santoni S,David J,Reboud X,Muller MH

更新日期：2010-10-01 00:00:00

abstract：:Haploid nuclear DNA of 23 species of Aedes, as determined by Feulgen cytophotometry, was found to vary 3-fold. This was accompanied by a 2-fold variation in total chromosomal length. There was a significant correlation (r = 0.765, P less than 0.001) between these two parameters. Genome size varied from 0.87 pg to 1.3 ...

journal_title：Heredity

authors： Rao PN,Rai K

更新日期：1987-10-01 00:00:00

abstract：:Genetic segregation was studied in more than 1900 seedlings of an F2 between the maize (Zea mays L.) inbred lines T232 and CM37. Significant segregation distortion was observed at 11 of 17 segregating allozyme loci and at a single morphological marker locus distributed on 7 of the 10 chromosomes in the genome. Deviati...

journal_title：Heredity

authors： Wendel JF,Edwards MD,Stuber CW

更新日期：1987-04-01 00:00:00

abstract：:Gene flow was investigated in Anopheles gambiae from eight localities that span the ecological zones of Nigeria (arid savanna zones in the north gradually turn into humid forest zones in the south). Genetic differentiation was measured over 10 microsatellite loci and, to determine any effects of selection, five loci w...

journal_title：Heredity

authors： Onyabe DY,Conn JE

更新日期：2001-12-01 00:00:00

abstract：:Blue mussels of the genus Mytilus have an unusual mode of mitochondrial DNA inheritance termed doubly uniparental inheritance (DUI). Females are homoplasmic for the F mitotype which is inherited maternally, whereas males are heteroplasmic for this and the paternally inherited M mitotype. In areas where species distrib...

journal_title：Heredity

authors： Wood AR,Turner G,Skibinski DO,Beaumont AR

更新日期：2003-10-01 00:00:00

abstract：:Understanding how geographical and environmental features affect genetic variation at both the population and individual levels is crucial in biology, especially in the case of pathogens. However, distinguishing between these factors and the effects of historical range expansion on spatial genetic structure remains ch...

journal_title：Heredity

authors： Rieux A,De Lapeyre De Bellaire L,Zapater MF,Ravigne V,Carlier J

更新日期：2013-01-01 00:00:00

abstract：:Knowledge of the mechanism underlying the expression of melanin-based sex-traits may help us to understand their signalling function. Potential sources of inter-individual variation are the total amount of melanins produced but also how biochemical precursors are allocated into the eumelanin and phaeomelanin pigments ...

journal_title：Heredity

authors： Roulin A,Dijkstra C

更新日期：2003-05-01 00:00:00

abstract：:Understanding the evolution of female multiple mating (polyandry) is crucial for understanding sexual selection and sexual conflict. Despite this interest, little is known about its genetic basis or whether genetics influences the evolutionary origin or maintenance of polyandry. Here, we explore the quantitative genet...

journal_title：Heredity

authors： Shuker DM,Phillimore AJ,Burton-Chellew MN,Hodge SE,West SA

更新日期：2007-02-01 00:00:00

abstract：:The conditional average frequency of rare alleles has been shown in simulations to provide a simple and robust estimator of the number of individuals exchanged between local populations in an island model (Nm). This statistic is defined as the average frequency of an allele in those samples in which the allele is pres...

journal_title：Heredity

authors： Barton NH,Slatkin M

更新日期：1986-06-01 00:00:00

abstract：:In plant species with mixed mating systems, differences in diverse factors-including their pollination system, flowering phenology, life form and susceptibility to inbreeding depression-cause variation in outcrossing rates among fruits within individuals, among individuals within populations and among populations with...

journal_title：Heredity

authors： Tamaki I,Setsuko S,Tomaru N

更新日期：2009-04-01 00:00:00

abstract：:Seven different mildew resistant wheat lines derived from crosses between triticale and bread wheat were examined by molecular cytogenetics and chromosome C-banding in order to determine their chromosomal composition. Genomic in situ hybridisation (GISH) showed the presence of rye germplasm in all the lines and identi...

journal_title：Heredity

authors： Forsström PO,Merker A,Schwarzacher T

更新日期：2002-05-01 00:00:00

abstract：:We dissected the relationship between genetic differentiation (Q(ST)) for a trait and its underlying genes (G(STq), differentiation for a quantitative locus) in an evolutionary context, with the aim of identifying the conditions in which these two measurements are decoupled. We used two parameters (θ(B) and θ(W)) scal...

journal_title：Heredity

authors： Kremer A,Le Corre V

更新日期：2012-04-01 00:00:00

abstract：:"Fisherian" models of sexual selection by female choice assume that females prefer male characters which are initially advantageous or neutral; character and preference then spread through the population. Once female preference has evolved to a higher frequency, the male character can become more extreme and disadvant...

journal_title：Heredity

authors： Tomlinson IP

更新日期：1988-04-01 00:00:00

abstract：:Prevention of malaria transmission throughout much of Africa is dependent on bednets that are impregnated with pyrethroid insecticides. Anopheles arabiensis is the major malaria vector in Chad and efforts to control this vector are threatened by the emergence of pyrethroid resistance. WHO bioassays revealed that An. a...

journal_title：Heredity

authors： Witzig C,Parry M,Morgan JC,Irving H,Steven A,Cuamba N,Kerah-Hinzoumbé C,Ranson H,Wondji CS

更新日期：2013-04-01 00:00:00

abstract：:"Parent-offspring conflict" is a theoretical concept proposing that siblings are selected to be slightly more greedy with each other than parents are selected to tolerate. This paper extends a class of previous models of parent-offspring conflict by introducing a new and more realistic dimension to the analysis: the a...

journal_title：Heredity

authors： Bull JJ

更新日期：1985-08-01 00:00:00