Publicação: SYNAPTONEMAL COMPLEX-ANALYSIS OF THE SEX BIVALENT IN GOATS
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1994-01-01
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Coorientador
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Elsevier B.V.
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Acesso aberto
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Synaptonemal complex (SC) analysis of XY pairing in the goat (Capra hircus; 2n = 60) was investigated by electron microscopy for the first time in this species. Synapsis of the X and Y chromosomes begins during the mid-late zygotene stage as the autosomes complete their pairing. Only a small portion of the total length of the Y is paired with the X chromosome at this time. By the early pachytene, almost 90% of the Y is paired with the X. All the observed stages of the sex bivalent pairing showed the structural difference between the differential and pairing regions. In the pairing region, a synaptonemal complex is formed, while in the differential region the chromosome axes remain free.
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Inglês
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Genetics Selection Evolution. Paris Cedex 15: Editions Scientifiques Elsevier, v. 26, n. 4, p. 369-375, 1994.
