http://www.cnr.it/ontology/cnr/individuo/prodotto/ID51566

Numerical Sex Chromosome Aberrations and Abnormal Sex Development in Horse and Sheep. (Articolo in rivista)

Type

Label

Numerical Sex Chromosome Aberrations and Abnormal Sex Development in Horse and Sheep. (Articolo in rivista) (literal)

Anno

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Alternative label

Di Meo GP 1, Neglia G 2, Perucatti A 1, Genualdo V 1, Iannuzzi A 1, Crocco D 3, Incarnato D 1, Romano G 4, Parma P 5, Iannuzzi L 1 (2009)
Numerical Sex Chromosome Aberrations and Abnormal Sex Development in Horse and Sheep.
in Sexual development (Print); Karger, Basel (Swaziland)
(literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

Di Meo GP 1, Neglia G 2, Perucatti A 1, Genualdo V 1, Iannuzzi A 1, Crocco D 3, Incarnato D 1, Romano G 4, Parma P 5, Iannuzzi L 1 (literal)

Pagina inizio

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Note

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1. CNR ISPAAM, Lab Anim Cytogenet & Gene Mapping, IT-80147 Naples, Italy 2. Univ Naples Federico 2, Dept Anim Prod & Food Inspect, Fac Vet Med, Naples, Italy 3. Univ Bari, Dept Anim Prod, Fac Agr Sci, Bari, Italy 4. Equine Arcadia Ctr, Turin, Italy 5. Univ Milan, Dept Anim Sci, Milan, Italy (literal)

Titolo

Numerical Sex Chromosome Aberrations and Abnormal Sex Development in Horse and Sheep. (literal)

Abstract

Gonadal dysgenesis and heterosexual conditions are often associated with sex chromosome abnormalities. In this study we report on 2 cases of abnormal sex development involving numerical sex chromosome aberrations in both horse and sheep. A 17-month-old Standardbred filly was sent to an equine fertility centre as an embryo donor due to its reduced size, being much smaller than a racehorse filly of the same age, which excluded it from an athletic career. External genitalia were clinically normal but manual palpation of the reproductive tract showed the presence of a small underdeveloped uterus and ovaries, as confirmed by ultrasonographic examination. Cytogenetic investigation by CBA-banding revealed an abnormal karyotype with X chromosome monosomy (2n = 63,X). A 18-month-old ewe showed distinct heterosexual traits with presence of a vulva (with enlarged clitoris), well-developed abdominal testes and mammary glands. Internal sex adducts were atrophic as seen after mating. Cytogenetic analysis revealed the presence of XX/XY mosaicism. (literal)

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