Abstract:
:The pattern of colonization of a forest site by the ectomycorrhizal basidiomycete fungus Hebeloma cylindrosporum Romagnesi was followed from 1993 until 1997. Fruit-bodies of this tetrapolar heterothallic species were mapped, collected and propagated as pure mycelial cultures. Isolates were analysed for their mating-types and molecular markers (rDNA polymorphism and RAPD). Dedikaryotization of the 26 isolates collected in 1993 and the separate analysis of each individual haploid nucleus established that two fully compatible genets, which occupied two nonoverlapping territories, were present. Isolates belonging to the same genet could nevertheless be distinguished from each other based on Southern hybridization using hyperpolymorphic DNA probes. A majority of the 143 isolates collected from 1994 to 1997 belonged to either of the two genets identified in 1993, whose territories extended at a rate of about 0. 45-0.60 m per year. Selfing of the two 1993 genets, rather than outcrossing, was the most likely explanation for the origin of additional genotypes identified between 1995 and 1997. The spatial distribution of fruit-bodies and genets of H. cylindrosporum suggested that only a fraction of the sampled area was favourable to colonization and that genetic diversification through meiospore dispersal may be inhibited by the presence of resident genets, possibly via a somatic incompatibility system.
journal_name
Heredity (Edinb)journal_title
Heredityauthors
Gryta H,Debaud JC,Marmeisse Rdoi
10.1046/j.1365-2540.2000.00668.xkeywords:
subject
Has Abstractpub_date
2000-03-01 00:00:00pages
294-302eissn
0018-067Xissn
1365-2540pii
her668journal_volume
84 ( Pt 3)pub_type
杂志文章相关文献
HEREDITY文献大全abstract::An analysis of the interpopulational differences observed between four European and four Chilean stocks of Drosophila subobscura, with regard to wing size, egg-to-adult development time and preadult viability, shows highly significant differences between the eight stocks irrespective of the continent from which the fl...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.1991.61
更新日期:1991-08-01 00:00:00
abstract::Comprehensive long-term studies of isolated populations provide valuable comparative data that may be used to evaluate different methods for quantifying the relationship between genetic diversity and fitness. Here, we report on data collected from large and well-characterized cohorts of the two numerically dominant sp...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/sj.hdy.6800409
更新日期:2004-04-01 00:00:00
abstract::Evolve and resequence (E&R) is a new approach to investigate the genomic responses to selection during experimental evolution. By using whole genome sequencing of pools of individuals (Pool-Seq), this method can identify selected variants in controlled and replicable experimental settings. Reviewing the current state ...
journal_title:Heredity
pub_type: 杂志文章,评审
doi:10.1038/hdy.2014.86
更新日期:2015-05-01 00:00:00
abstract::Segregation distorters are alleles that distort normal segregation in their own favour. Sex chromosomal distorters lead to biased sex ratios, and the presence of such distorters, therefore, may induce selection for a change in the mechanism of sex determination. The evolutionary dynamics of distorter-induced changes i...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.2009.104
更新日期:2010-01-01 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
pub_type: 杂志文章
doi:10.1038/s41437-018-0135-5
更新日期:2019-04-01 00:00:00
abstract::Small populations of our study species Ranunculus reptans have reduced fitness because of inbreeding, genetic load, and reduced mate availability; that is, they suffer from a three-fold genetic Allee effect. Here, we investigate how the effect of interpopulation outbreeding on offspring fitness depends on population s...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/sj.hdy.6800732
更新日期:2005-12-01 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
pub_type: 杂志文章
doi:10.1038/hdy.2010.18
更新日期:2010-12-01 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
pub_type: 杂志文章
doi:10.1038/hdy.1988.44
更新日期:1988-04-01 00:00:00
abstract::This corrects the article DOI: 10.1038/hdy.2015.89. ...
journal_title:Heredity
pub_type: 杂志文章,已发布勘误
doi:10.1038/hdy.2017.38
更新日期:2017-11-01 00:00:00
abstract::Elucidating barriers to gene flow is important for understanding the dynamics of speciation. Here we investigate pre- and post-zygotic mechanisms acting between the two hybridizing species of Atlantic eels: Anguilla anguilla and A. rostrata. Temporally varying hybridization was examined by analyzing 85 species-diagnos...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.2016.96
更新日期:2017-03-01 00:00:00
abstract::Several classes of models have been suggested to explain how natural selection can favour non-zero recombination. Directional and fluctuating selection, abiotic and biotic, and selection against harmful mutations seem to be the most plausible factors, but little has been done to test the problem experimentally. Here w...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.1994.7
更新日期:1994-01-01 00:00:00
abstract::Our understanding of the distribution of worldwide human genomic diversity has greatly increased over recent years thanks to the availability of large data sets derived from short tandem repeats (STRs), insertion deletion polymorphisms (indels) and single nucleotide polymorphisms (SNPs). A concern, however, is that th...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.2008.89
更新日期:2009-02-01 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
pub_type: 杂志文章
doi:10.1046/j.1365-2540.2000.00627.x
更新日期:2000-01-01 00:00:00
abstract::Forty-two homozygous lines each isoallelic for the Esterase 6 (Est-6) locus were extracted from a natural population of Drosophila melanogaster. Homogenates of 4-5 day old virgin adults of each sex from several replicate cultures of each line were assayed for EST6 activity. Depending on the line, males had from three ...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.1989.4
更新日期:1989-02-01 00:00:00
abstract::Genetic variation was studied in quantitative traits and molecular markers in six natural Scandinavian populations of Arabidopsis thaliana. Only two of the populations had several molecular marker haplotypes and significant between-family variance components in quantitative traits. There was no genetic variation in th...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.1997.137
更新日期:1997-08-01 00:00:00
abstract::Patterns of pollen dispersal were investigated in a small, isolated, relict population of Pinus sylvestris L., consisting of 36 trees. A total-exclusion battery comprising four chloroplast and two nuclear microsatellites (theoretical paternity exclusion probability EP=0.996) was used to assign paternity to 813 seeds, ...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/sj.hdy.6800542
更新日期:2005-01-01 00:00:00
abstract::We present an approach for quantitative trait locus (QTL) mapping, termed as 'lineage-specific QTL mapping', for inferring allelic changes of QTL evolution along with branches in a phylogeny. We describe and analyze the simplest case: by adding a third taxon into the normal procedure of QTL mapping between pairs of ta...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.2013.24
更新日期:2013-08-01 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
pub_type: 杂志文章
doi:10.1038/sj.hdy.6800182
更新日期:2003-01-01 00:00:00
abstract::Nucleotide diversity was assessed within nine candidate genes (CGs) (in total 4.6 kb) for the time of bud burst in nine sessile oak (Quercus petraea) populations distributed in central and northern Europe. The sampled populations were selected on the basis of their contrasting times of bud burst observed in common gar...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.2009.134
更新日期:2010-05-01 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
pub_type: 杂志文章
doi:10.1038/s41437-020-0318-8
更新日期:2020-08-01 00:00:00
abstract::Studies of organisms on 'terrestrial islands' can improve our understanding of two unresolved issues in evolutionary genetics: the likely long-term effects of habitat fragmentation and the genetic underpinnings of continental species radiations in island-like terrestrial habitats. We have addressed both issues for fou...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.2008.65
更新日期:2008-09-01 00:00:00
abstract::The genetic control of self-incompatibility (SI) was studied in the Mediterranean short-lived perennial species Anagallis monelli (Primulaceae: Myrsinaceae). Arrays of siblings, including families derived from reciprocal crosses, were cross-pollinated in full diallels, and compatibility groups were assesssed from a ce...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1046/j.1365-2540.2001.00951.x
更新日期:2001-11-01 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
pub_type: 杂志文章
doi:10.1038/hdy.2015.69
更新日期:2016-01-01 00:00:00
abstract::The estimation of heritabilities and genetic correlations is based on the assumption that the trait distributions are normal. When the distributions are not normal it is advisable to transform the data to produce normality. However, it is possible that no suitable transformation can be found. The purpose of the presen...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1046/j.1365-2540.2001.00844.x
更新日期:2001-04-01 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
pub_type: 杂志文章
doi:10.1038/hdy.1994.114
更新日期:1994-08-01 00:00:00
abstract::Population genetic signatures of local adaptation are frequently investigated by identifying loci with allele frequencies that exhibit high correlation with ecological variables. One difficulty with this approach is that ecological associations might be confounded by geographic variation at selectively neutral loci. H...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.2015.7
更新日期:2015-07-01 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
pub_type: 杂志文章
doi:10.1038/hdy.2014.9
更新日期:2014-07-01 00:00:00
abstract::A technique for the examination of chromosomes in testicular material in Nucella lapillus is described. The diploid chromosome number varies between 26 and 36. Eight pairs of meatcentric chromosomes are always present and range in size from 9mu to 4mu. Additionally, 10 pairs of acrocentric chromosomes (4mu to 1mu) are...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.1975.26
更新日期:1975-04-01 00:00:00
abstract::Restriction endonuclease variation in the 12 kb region surrounding the Adh locus was measured in seven Australian and six Chinese populations of Drosophila melanogaster. There is a higher level of nucleotide-substitution variation in the Australian populations than in the Chinese, which is possibly a reflection of the...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.1992.1
更新日期:1992-01-01 00:00:00
abstract::The sibling species Anopheles atroparvus and Anopheles labranchiae are cytogenetically almost indistinguishable. The chromosome complement (2n = 6) consists of two pairs of autosomes and two heteromorphic sex chromosomes with largely homologous heterochromatic long arms. Treatment of chromosome preparations with the r...
journal_title:Heredity
pub_type: 杂志文章
doi:10.1038/hdy.1990.80
更新日期:1990-08-01 00:00:00