Journal ArticleDOI
Polymorphic minisatellite amplified on avian W chromosome
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TLDR
That sex-linked fragments do not occur in the congener Campylorhynchus griseus suggests that their entrapment and amplification on the W chromosome in C. nuchalis occurred since the divergence of the two species.Abstract:
Jeffrey's minisatellite probe 33.15, which screens dozens of hypervariable loci throughout the genome, detects female-specific fragments in stripe-backed wrens (Campylorhynchus nuchalis). HaeIII subdivides the single large female-specific fragment observed with other enzymes into a polymorphic suite of fragments of similar total molecular weight among patterns. Sex-linked HaeIII haplotypes are perfectly transmitted from mother to daughter but not to sons. These results suggest that the female-specific HaeIII fragments represent variable subunits of a single long tandem repetitive array composed of approximately 20-bp repetitive units located outside the pairing region of the W chromosome. That sex-linked fragments do not occur in the congener Campylorhynchus griseus suggests that their entrapment and amplification on the W chromosome in C. nuchalis occurred since the divergence of the two species.Key words: minisatellites, sex chromosome, W chromosome, amplification.read more
Citations
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Journal ArticleDOI
Sex identification in birds using two CHD genes
TL;DR: The discovery of a W-linked gene in the Great tit (Parus major) is described, it is named CHD-W (chromodomain-helicase-DNA-binding protein W- linked), it is highly conserved and it is W-chromosome linked in a range of bird species.
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First Gene on the Avian W Chromosome (CHD) Provides a Tag for Universal Sexing of Non-Ratite Birds
TL;DR: The isolation of a chicken homologue to the mouse chromo-helicase-DNA binding (CHD) gene which encodes a protein involved in global regulation of transcriptional activation on the chromatin level is described.
Journal ArticleDOI
Chromosome-Specific Intron Size Differences in the Avian CHD Gene Provide an Efficient Method for Sex Identification in Birds
TL;DR: To this problem for some species, PCR-based approaches that are technically simpler and that have broad taxonomic utility have been developed, but their use requires considerable xpertise, and often their taxonomic range is limited.
Journal ArticleDOI
New tools for sex identification and the study of sex allocation in birds
Hans Ellegren,Ben C. Sheldon +1 more
TL;DR: The recent development of simple, DNA-based methods for the determination of an individual's sex will make possible large-scale studies of sex allocation and the consequence of gender in birds.
Journal ArticleDOI
Matriarchal population genetic structure in an avian species with female natal philopatry.
TL;DR: The contrast between results of banding returns and mtDNA distributions in the snow goose raises general issues regarding population structure: direct contemporary observations on dispersal and gene flow can convey a misleading impression of phylogeographic population structure.
References
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Journal ArticleDOI
The natal and breeding dispersal of birds
and P J Greenwood,Paul H. Harvey +1 more
TL;DR: Over 40 years ago, ornithologists studying the movement of birds in relation to their birth and breeding sites were preoccupied with estimating the extent of mixing of individuals within a species's range, with major disagreements about how far young birds dispersed.
Journal ArticleDOI
Demographic study of a wild house sparrow population by DNA fingerprinting
TL;DR: It is reported that one of the human minisatellite clones is a suitable probe for sparrow DNA and that it reveals variation as extensive as that found in man, suggesting that analysis of minis Satellite DNA will be a powerful tool in the study of demographic population genetics.
Journal ArticleDOI
Positive identification of an immigration test-case using human DNA fingerprints
TL;DR: The potential for positive or inclusive identification is illustrated and the DNA fingerprint analysis of an immigration case is described, the resolution of which would have been very difficult and laborious using currently available single-locus genetic markers.
Journal ArticleDOI
DNA fingerprinting in birds.
TL;DR: It is shown here that human minisatellite-derived probes also detect highly variable regions in bird DNAs and it is concluded that house sparrow DNA fingerprints are analagous to those of humans.
Journal ArticleDOI
Parental care and mating behaviour of polyandrous dunnocks Prunella modularis related to paternity by DNA fingerprinting
TL;DR: It is shown that in the dunnock Prunella modularis, a small passerine bird with a variable mating system, males do not discriminate between their own young and those of another male in multiply-sired broods, which is a good predictor of paternity.