Rickettsia associated with male-killing in a buprestid beetle.

abstract：:Podisma pedestris exists as both an XO and neoXY form in the Southern French Alps. These chromosome types are shown to be contiguously allopatric and hybrid populations have been located in several places. Hybridisation appears to be occurring freely, but the hybrid zones are quite narrow. In several places the two di...

journal_title：Heredity

authors： Hewitt GM

更新日期：1975-12-01 00:00:00

abstract：:Many lepidopteran insects exhibit body colour variations, where the high phenotypic diversity observed in the wings and bodies of adults provides opportunities for studying adaptive morphological evolution. In the silkworm Bombyx mori, two genes responsible for moth colour mutation, Bm and Ws, have been mapped to 0.0 ...

journal_title：Heredity

authors： Ito K,Katsuma S,Kuwazaki S,Jouraku A,Fujimoto T,Sahara K,Yasukochi Y,Yamamoto K,Tabunoki H,Yokoyama T,Kadono-Okuda K,Shimada T

更新日期：2016-01-01 00:00:00

abstract：:Fluorescence in situ hybridization (FISH) was used to localize two transgenes (gus and bar), carried on plasmids pACT-1F and pUBA, respectively, on mitotic metaphase squashes of T1 plants of the cultivated hexaploid oat Avena sativa L. cotransformed by microprojectile bombardment of embryogenic callus. Among the eight...

journal_title：Heredity

authors： Leggett JM,Perret SJ,Harper J,Morris P

更新日期：2000-01-01 00:00:00

abstract：:The central aim of evolutionary biology is to understand patterns of genetic variation between species and within populations. To quantify the genetic variation underlying intraspecific differences, estimating quantitative genetic parameters of traits is essential. In Pterygota, wing morphology is an important trait a...

journal_title：Heredity

authors： Xia S,Pannebakker BA,Groenen MAM,Zwaan BJ,Bijma P

更新日期：2020-08-01 00:00:00

abstract：:Phlebotomus ariasi is one of the two sandflies transmitting the causative agent of zoonotic leishmaniasis, Leishmania infantum, in France and Iberia, and provides a rare case study of the postglacial re-colonization of France by a Mediterranean species. Four DNA sequences were analysed-mitochondrial cytochrome b (cyt ...

journal_title：Heredity

authors： Mahamdallie SS,Pesson B,Ready PD

更新日期：2011-05-01 00:00:00

abstract：:The course of adaptation to heterogeneous environments is influenced by the magnitude of genetic variation for ecologically important characters within each environment and the extent of genotype x environment interaction. Using the genetic correlation between the expression of characters in different environments as ...

journal_title：Heredity

authors： Via S,Conner J

更新日期：1995-01-01 00:00:00

abstract：:Determining the mechanisms responsible for the distribution of genetic diversity in natural populations has occupied a central role in molecular evolution. Our study was motivated by the unprecedented observation that a widespread Eurasian flycatcher, Ficedula albicilla, exhibited no variation at the mitochondrial DNA...

journal_title：Heredity

authors： Hung CM,Zink RM

更新日期：2014-07-01 00:00:00

abstract：:Heterozygotes are assumed to mate with a frequency that is any general function, f(v), of their population frequency, v. Models are analysed in which the selection that determines the function f(v) acts either on one sex alone or on both sexes equally. The central equilibrium point v* = 1/2 always exists; it is stable...

journal_title：Heredity

authors： St Lawrence I,O'Donald P

更新日期：1981-08-01 00:00:00

abstract：:Among the asexual reproductive modes, androgenesis is probably one of the most astonishing and least studied mechanisms. In this 'paternal monopolization', the maternal nuclear genome fails to participate in zygote development and offspring are paternal nuclear clones. Obligate androgenesis is known in only a few orga...

journal_title：Heredity

authors： Pigneur LM,Hedtke SM,Etoundi E,Van Doninck K

更新日期：2012-06-01 00:00:00

abstract：:Insect cuticle melanism is linked to a number of life-history traits, and a positive relationship is hypothesized between melanism and the strength of immune defense. In this study, the phenotypic and genetic relationships between cuticular melanization, innate immune defense, individual development time and body size...

journal_title：Heredity

authors： Prokkola J,Roff D,Kärkkäinen T,Krams I,Rantala MJ

更新日期：2013-08-01 00:00:00

abstract：:In prediction of genomic values, the single-step method has been demonstrated to outperform multi-step methods. In statistical analyses of longitudinal traits, the random regression test-day model (RR-TDM) has clear advantages over other models. Our goal in this study was to evaluate the performance of a model that in...

journal_title：Heredity

authors： Kang H,Zhou L,Mrode R,Zhang Q,Liu JF

更新日期：2017-12-01 00:00:00

abstract：:Colonizing events may expose organisms to physical and ecological environments found nowhere else in their range. Novel selection pressures can then influence subsequent rapid evolutionary changes. Here, I investigate the genetics of one such rapid change in the sexual signal of Polynesian field crickets, Teleogryllus...

journal_title：Heredity

authors： Tinghitella RM

更新日期：2008-03-01 00:00:00

abstract：:The effect of selection on patterns of genetic structure within and between populations may be studied by contrasting observed patterns at the genes targeted by selection with those of unlinked neutral marker loci. Local directional selection on target genes will produce stronger population genetic structure than at n...

journal_title：Heredity

authors： Leducq JB,Llaurens V,Castric V,Saumitou-Laprade P,Hardy OJ,Vekemans X

更新日期：2011-02-01 00:00:00

abstract：:The highly diverse genes of the major histocompatibility complex (MHC) are important in the adaptive immune system and are expected to be under selection from pathogens. Thus, the MHC genes provide an exceptional opportunity to investigate patterns of selection within and across populations. In this study, we analyzed...

journal_title：Heredity

authors： Fraser BA,Ramnarine IW,Neff BD

更新日期：2010-02-01 00:00:00

abstract：:Lung cancer is the leading cause of cancer deaths in both men and women in the US. While most sporadic lung cancer cases are related to environmental factors such as smoking, genetic susceptibility may also play an important role and a number of lung cancer associated single-nucleotide polymorphisms (SNPs) have been i...

journal_title：Heredity

authors： Lei X,Yuan D,Zhu Z,Huang S

更新日期：2018-12-01 00:00:00

abstract：:Genetic effects of habitat fragmentation may be undetectable because they are generally a recent event in evolutionary time or because of confounding effects such as historical bottlenecks and historical changes in species' distribution. To assess the effects of demographic history on the genetic diversity and populat...

journal_title：Heredity

authors： Collevatti RG,Telles MP,Nabout JC,Chaves LJ,Soares TN

更新日期：2013-08-01 00:00:00

abstract：:In wide-ranging taxa with historically dynamic ranges, past allopatric isolation and range expansion can both influence the current structure of genetic diversity. Considering alternate historical scenarios involving expansion from either a single refugium or from multiple refugia can be useful in differentiating the ...

journal_title：Heredity

authors： Reid BN,Kass JM,Wollney S,Jensen EL,Russello MA,Viola EM,Pantophlet J,Iverson JB,Peery MZ,Raxworthy CJ,Naro-Maciel E

更新日期：2019-04-01 00:00:00

abstract：:The theory, construction and optimization of a model of chromosome pairing in triploid hybrids are re-examined and the model reconstructed. A new approach to optimization is described that removes a bias in the estimation of x, the measure of relative affinity, by weighting the observed and calculated meiotic figure f...

journal_title：Heredity

authors： Chapman CGD,Kimber G

更新日期：1992-02-01 00:00:00

abstract：:In this work we report the development and characterization of 10 microsatellite loci for the endangered tree species Caryocar brasiliense. Using genomic library enrichment, the efficiency of SSR marker development was 14.4% from sequencing data to operationally useful loci. Primer sequences for this set of 10 loci ar...

journal_title：Heredity

authors： Collevatti RG,Brondani RV,Grattapaglia D

更新日期：1999-12-01 00:00:00

abstract：:Plants mediate carbon into most ecosystems and are thus under persistent attack by diverse enemies. The evolution of defense against such assaults will depend on the availability of genetic variation, as well as the costs and constraints on defense. We estimated the magnitude of genetic variation for defense against s...

journal_title：Heredity

authors： Ivey CT,Carr DE,Eubanks MD

更新日期：2009-03-01 00:00:00

abstract：:Recent genetic studies have shown that introgression rates among loci may greatly vary according to their location in the genome. In particular, several cases of mito-nuclear discordances have been reported for a wide range of organisms. In the present study, we examine the causes of discordance between mitochondrial ...

journal_title：Heredity

authors： Pons JM,Sonsthagen S,Dove C,Crochet PA

更新日期：2014-03-01 00:00:00

abstract：:Understanding the breeding system and population genetic structure of invasive weed species is important for biocontrol, and contributes to our understanding of the evolutionary processes associated with invasions. Hieracium lepidulum is an invasive weed in New Zealand, colonising a diverse range of habitats including...

journal_title：Heredity

authors： Chapman H,Robson B,Pearson ML

更新日期：2004-03-01 00:00:00

abstract：:Southern Italy has a long history of human occupation and passage of different cultures since the Early Holocene. Repeated, ancient introductions of pigs in several geographic areas in Europe make it difficult to understand pig translocation and domestication in Italy. The archeozoological record may provide fundament...

journal_title：Heredity

authors： Lega C,Fulgione D,Genovese A,Rook L,Masseti M,Meiri M,Cinzia Marra A,Carotenuto F,Raia P

更新日期：2017-02-01 00:00:00

abstract：:Variations observed in parasite virulence and host resistance may be the outcome of coevolutionary processes. Recent theoretical developments have led to a 'geographic mosaic theory' of coevolution according to which there are some localities where reciprocal selection occurs (hot spots) and others where it is strongl...

journal_title：Heredity

authors： Dupas S,Carton Y,Poiriè M

更新日期：2003-01-01 00:00:00

abstract：:Apomixis is a mode of asexual reproduction through seed. Progeny produced by apomixis are clonal replicas of a mother plant. The essential feature of apomixis is that embryo sacs and embryos are produced in ovules without meiotic reduction or egg cell fertilisation. Thus, apomixis fixes successful gene combinations an...

journal_title：Heredity

authors： Barcaccia G,Arzenton F,Sharbel TF,Varotto S,Parrini P,Lucchin M

更新日期：2006-04-01 00:00:00

abstract：:Cycloheximide-resistant mutants of Schizosaccharomyces pombe were isolated either as spontaneous mutants or after mutagenic treatment with nitrous acid, UV and N-methyl-N'-nitro-N-nitrosoguanidine (MNNG). Twenty-three spontaneous mutants and 64 induced mutants were analysed genetically. Crosses revealed that at least ...

journal_title：Heredity

authors： Ibrahim MA,Coddington A

更新日期：1976-10-01 00:00:00

abstract：:In the silkworm, Bombyx mori, the female is the heterogametic (ZW) sex and the male is homogametic (ZZ). The female heterogamety is a typical situation in the insect order Lepidoptera. Although the W chromosome in silkworm is strongly female determining, no W-linked gene for a morphological character has been found on...

journal_title：Heredity

authors： Nagaraja GM,Mahesh G,Satish V,Madhu M,Muthulakshmi M,Nagaraju J

更新日期：2005-08-01 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：:Atlantic Coast striped bass exhibit exceptionally low levels of genetic variation. The ability of the randomly amplified polymorphic DNA (RAPD) method to uncover genetic variation in this highly conserved species was investigated. Sufficient levels of variation were detected to allow a population genetic analysis of t...

journal_title：Heredity

authors： Bielawski JP,Pumo DE

更新日期：1997-01-01 00:00:00

abstract：:Determination of mammalian sex depends on the presence or absence of a functional testis. Testes are determined by the activity of the testis determining factor encoded by the sex determining gene, Y (SRY) located on the Y chromosome. Considerable evidence suggests that the SRY gene is the only gene on the Y chromosom...

journal_title：Heredity

authors： McElreavey K,Barbaux S,Ion A,Fellous M

更新日期：1995-12-01 00:00:00