title: Chromosomal pericentric inversion detected in a sow and her piglets.
abstract: Forty-four pigs with the suspicious symptoms of porcine stress syndrome (PSS) were selected for chromosome analysis. Cytogenetic evaluation by means of the G-banding technique revealed that one sow had an abnormal (38,XX, inv (1p+q-) (2.1;1.1) karyotype. The same abnormality was also detected in 8 of 13 offspring of this sow. However, there was no correlation between the chromosome abnormality and PSS. The chromosome abnormality did not give rise to a reduction in the fertility of this sow or in the viability of her offspring. This case represents the first reported instance of pericentric inversion in swine.
authors.affiliation: Laboratory of Theriogenology, Faculty of Agriculture Iwate University, Morioka 020, Japan.
authors.forename: Y I
authors.initials: YI
authors.lastname: Miyake
authors.forename: T
authors.initials: T
authors.lastname: Matsubara
authors.forename: M
authors.initials: M
authors.lastname: Hata
authors.forename: Y
authors.initials: Y
authors.lastname: Kaneda