Japanese Journal of Veterinary Research;Volume 32, Number 3

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GENE EXPRESSION OF TRIPLOIDY IN SIX ADULT INTERSEXUAL CHICKENS

MIYAKE, Yoh-Ichi;SYUTO, Bunei;KANAGAWA, Hiroshi

Permalink : http://hdl.handle.net/2115/2307
JaLCDOI : 10.14943/jjvr.32.3.143
KEYWORDS : chicken intersexes;chromosomal triploidy;level of protein and isozyme;streak gonad

Abstract

The peripheral blood of 6 adult intersexual chickens was examined chromosomally. The cases were chromosomal triploidy (3n) with the ZZW sex chromosomes. Erythrocyte size of triploid chickens was about 1.5 times that of normal diploid cell size. The difference between triploid cell size and diploid cell size was significant (P<0.001). The analyses of protein and estrase activity revealed that the triploidy had similar levels of gene expression to that of the diploid chickens. Macroscopically, three cases had a lateral streak gonad and two cases had bilateral gonads (a streak gonad on the left side and a small testis-like gonad on the right side). In the microscopical observations, all cases showed seminiferous tubeles without a spermatogenetic figure.

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