Abstract：
:Hybrid matings between the sexual species Poeciliopsis monacha and Poeciliopsis lucida produced a series of diploid all-female lineages of P. monacha-lucida that inhabit the Río Fuerte of northwestern Mexico. Restriction site analyses of mitochondrial DNA (mtDNA) clearly revealed that P. monacha was the maternal ancestor of these hybrids. The high level of mtDNA diversity in P. monacha was mirrored by similarly high levels in P. monacha-lucida; thus hybridizations giving rise to unisexual lineages have occurred many times. However, mtDNA variability among P. monacha-lucida lineages revealed a geographical component. Apparently the opportunity for the establishment of unisexual lineages varies among tributaries of the Río Fuerte. We hypothesize that a dynamic complex of sexual and clonal fishes appear to participate in a feedback process that maintains genetic diversity in both the sexual and asexual components.
journal_name
Geneticsjournal_title
Geneticsauthors
Quattro JM,Avise JC,Vrijenhoek RCsubject
Has Abstractpub_date
1991-02-01 00:00:00pages
391-8issue
2eissn
0016-6731issn
1943-2631journal_volume
127pub_type
杂志文章相关文献
GENETICS文献大全abstract：:To understand gene function, the cre/loxP conditional system is the most powerful available for temporal and spatial control of expression in mouse. However, the research community requires more cre recombinase expressing transgenic mouse strains (cre-drivers) that restrict expression to specific cell types. To addres...
journal_title：Genetics
pub_type： 杂志文章
doi：10.1534/genetics.119.301984
更新日期：2019-04-01 00:00:00
abstract：:By screening for suppressors of hypomorphic mutations of let-23, a receptor tyrosine kinase necessary for vulval induction in Caenorhabditis elegans, we recovered > or = 12 mutations defining the sli-1 (suppressor of lineage defect) locus. sli-1 mutations suppress four of five phenotypes associated with hypomorphic al...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：1995-04-01 00:00:00
abstract：:To investigate the genetic basis of maize adaptation to temperate climate, collections of 375 inbred lines and 275 landraces, representative of American and European diversity, were evaluated for flowering time under short- and long-day conditions. The inbred line collection was genotyped for 55 genomewide simple sequ...
journal_title：Genetics
pub_type： 杂志文章
doi：10.1534/genetics.105.048603
更新日期：2006-04-01 00:00:00
abstract：:A genetic model with additive-dominance effects and genotype x environment interactions is presented for quantitative traits with time-dependent measures. The genetic model for phenotypic means at time t conditional on phenotypic means measured at previous time (t-1) is defined. Statistical methods are proposed for an...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：1995-12-01 00:00:00
abstract：:Stem cells have a fascinating biology and offer great prospects for therapeutic applications, stimulating intense research on what controls their properties and behavior. Although there have been significant advances in our understanding of how local microenvironments, or niches, control the maintenance and activity o...
journal_title：Genetics
pub_type： 杂志文章,评审
doi：10.1534/genetics.108.098244
更新日期：2008-12-01 00:00:00
abstract：:Chromosomal double-strand breaks (DSBs) that have only one end with homology to a donor duplex undergo repair by strand invasion followed by replication to the chromosome terminus (break-induced replication, BIR). Using a transformation-based assay system, it was previously shown that BIR could occur by several rounds...
journal_title：Genetics
pub_type： 杂志文章
doi：10.1534/genetics.114.162297
更新日期：2014-04-01 00:00:00
abstract：:Mathematical models are presented for the evolution of postmating and premating reproductive isolation. In the case of postmating isolation it is assumed that hybrid sterility or inviability is caused by incompatibility of alleles at one or two loci, and evolution of reproductive isolation occurs by random fixation of...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：1983-03-01 00:00:00
abstract：:Although most living organisms reproduce sexually, some have developed a uniparental reproduction where the embryo usually derives from the female parent. A unique case of paternal apomixis in plants has been recently reported in Cupressus dupreziana, an endangered Mediterranean conifer. This species produces unreduce...
journal_title：Genetics
pub_type： 杂志文章
doi：10.1534/genetics.107.080572
更新日期：2008-01-01 00:00:00
abstract：:The phenomenon of chromosome, or genomic, imprinting indicates the relevance of parental origin in determining functional differences between alleles, homologous chromosomes, or haploid sets. In mealybug males (Homoptera, Coccoidea), the haploid set of paternal origin undergoes heterochromatization at midcleavage and ...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：1999-04-01 00:00:00
abstract：:The Collaborative Cross (CC) was designed to facilitate rapid gene mapping and consists of hundreds of recombinant inbred lines descended from eight diverse inbred founder strains. A decade in production, it can now be applied to mapping projects. Here, we provide a proof of principle for rapid identification of major...
journal_title：Genetics
pub_type： 杂志文章
doi：10.1534/genetics.114.163014
更新日期：2014-09-01 00:00:00
abstract：:This study attempted to assay the zygotic contribution of X chromosome genes to the genetic control of embryonic morphogenesis in Drosophila melanogaster. A systematic screen for X-linked genes which affect the morphology of the embryo was undertaken, employing the phenotype of whole mount embryos as the major screeni...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：1988-01-01 00:00:00
abstract：:Sensory cues regulate several aspects of behavior and development in Caenorhabditis elegans, including entry into and exit from an alternative developmental stage called the dauer larva. Three parallel pathways, including a TGF-beta-like pathway, regulate dauer formation. The mechanisms by which the activities of thes...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：2000-09-01 00:00:00
abstract：:Clinal variation is common for enzymes in the glycolytic pathway for Drosophila melanogaster and is generally accepted as an adaptive response to different climates. Although the enzyme phosphoglucomutase (PGM) possesses several allozyme polymorphisms, it is unique in that it had been reported to show no clinal variat...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：2001-04-01 00:00:00
abstract：:Transposable elements (TEs) constitute a substantial fraction of the eukaryotic genome and, as a result, have a complex relationship with their host that is both adversarial and dependent. To minimize damage to cellular genes, TEs possess mechanisms that target integration to sequences of low importance. However, the ...
journal_title：Genetics
pub_type： 杂志文章
doi：10.1534/genetics.115.181602
更新日期：2015-11-01 00:00:00
abstract：:Gametes are produced in plants through mitotic divisions in the haploid gametophytes. We investigated the role of EXPORTIN1 (XPO1) genes during the development of both female and male gametophytes of Arabidopsis. Exportins exclude target proteins from the nucleus and are also part of a complex recruited at the kinetoc...
journal_title：Genetics
pub_type： 杂志文章
doi：10.1534/genetics.108.094896
更新日期：2008-11-01 00:00:00
abstract：:Bayesian posterior distributions are obtained for the time to the most recent common ancestor (MRCA) for a nonrecombining segment of DNA (such as the nonpseudoautosomal arm of the Y chromosome or the mitochondrial genome) for two individuals given that they match at k out of n scored markers. We argue that the distrib...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：2001-06-01 00:00:00
abstract：:We have examined the effects of prolonged histidine deprivation on the reversion of Salmonella typhimurium histidine auxotrophs containing either hisG46, a missense mutation (CTC----CCC), or hisG428, an ochre mutation (CAA----TAA). Both of these mutants can revert to His+ via intragenic and extragenic mechanisms. Wher...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：1992-10-01 00:00:00
abstract：:Extensive Monte Carlo simulations are conducted of spatial distributions of two-locus genotypes in large, continuous populations under isolation by distance models. The results show that substantial patches of double homozygotes are present in the spatial structures, even when loci are unlinked. The stochastic spread ...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：1995-05-01 00:00:00
abstract：:Transmission-ratio distortion is a departure from a 1:1 segregation of alleles in the gametes of a heterozygous individual. The so-called driving allele is strongly selected regardless of its effect on the fitness of the carrying individual. It may then have an important impact on neutral polymorphism due to the genet...
journal_title：Genetics
pub_type： 杂志文章
doi：10.1534/genetics.105.052977
更新日期：2006-07-01 00:00:00
abstract：:Catfish is the major aquaculture species in the United States. The hybrid catfish produced by crossing channel catfish females with blue catfish males exhibit a number of desirable production traits, but their mass production has been difficult. To introduce desirable genes from blue catfish into channel catfish throu...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：2003-10-01 00:00:00
abstract：:Many heterogametic organisms adjust sex chromosome expression to accommodate differences in gene dosage. This requires selective recruitment of regulatory factors to the modulated chromosome. How these factors are localized to a chromosome with requisite accuracy is poorly understood. Drosophila melanogaster males inc...
journal_title：Genetics
pub_type： 杂志文章
doi：10.1534/genetics.118.301173
更新日期：2018-08-01 00:00:00
abstract：:Infantile neuronal ceroid lipofuscinosis (INCL) is a pediatric neurodegenerative disease caused by mutations in the human CLN1 gene. CLN1 encodes palmitoyl-protein thioesterase 1 (PPT1), suggesting an important role for the regulation of palmitoylation in normal neuronal function. To further elucidate Ppt1 function, w...
journal_title：Genetics
pub_type： 杂志文章
doi：10.1534/genetics.106.067983
更新日期：2007-05-01 00:00:00
abstract：:During development, the Notch receptor regulates many cell fate decisions by a signaling pathway that has been conserved during evolution. One positive regulator of Notch is Deltex, a cytoplasmic, zinc finger domain protein, which binds to the intracellular domain of Notch. Phenotypes resulting from mutations in delte...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：1999-06-01 00:00:00
abstract：:Spt3 of Saccharomyces cerevisiae is required for the normal transcription of many genes in vivo. Past studies have shown that Spt3 is required for both mating and sporulation, two events that initiate when cells are at G(1)/START. We now show that Spt3 is needed for two other events that begin at G(1)/START, diploid f...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：2002-06-01 00:00:00
abstract：:CarD is the only reported prokaryotic protein showing structural and functional features typical of eukaryotic high-mobility group A transcription factors. In prokaryotes, proteins similar to CarD appear to be confined primarily to myxobacteria. In Myxococcus xanthus, CarD has been previously shown to act as a positiv...
journal_title：Genetics
pub_type： 杂志文章
doi：10.1534/genetics.104.029207
更新日期：2004-08-01 00:00:00
abstract：:Four crosses were made between inbred Cannabis sativa plants with pure cannabidiol (CBD) and pure Delta-9-tetrahydrocannabinol (THC) chemotypes. All the plants belonging to the F(1)'s were analyzed by gas chromatography for cannabinoid composition and constantly found to have a mixed CBD-THC chemotype. Ten individual ...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：2003-01-01 00:00:00
abstract：:The ability of autonomously replicating plasmids to recombine in mammalian cells was investigated. Two deletion plasmids of the eukaryotic-prokaryotic shuttle vector pSV2neo were cotransfected into transformed monkey COS cells. Examination of the low molecular weight DNA isolated after 48 hr of incubation revealed tha...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：1985-10-01 00:00:00
abstract：:Mutations in arg-13 result in slow growth in minimal medium and can suppress mutations in carbamyl phosphate synthase-aspartate carbamyl transferase within the pyrimidine pathway; the exact biochemical function of the gene product is unknown. To understand the role of arg-13 in arginine metabolism, cosmids rescuing gr...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：1996-07-01 00:00:00
abstract：:Phylogenetic analyses of non-LTR retrotransposons suggest that all elements can be divided into 11 lineages. The 3 oldest lineages show target site specificity for unique locations in the genome and encode an endonuclease with an active site similar to certain restriction enzymes. The more "modern" non-LTR lineages po...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：2000-01-01 00:00:00
abstract：:Sixty independent UGA suppressors of Saccharomyces cerevisiae have been studied. They are dominant and are divided into 16 groups (loci) by recombination. Suppressors representing these loci are divided into two classes by action spectra; four in class 1 (a broad action spectrum) and 12 in class 2 (a narrow action spe...
journal_title：Genetics
pub_type： 杂志文章
doi：
更新日期：1988-01-01 00:00:00
