Table 3. The analysis of the chromosomal segregation errors of porcine oocytes matured in vitro.
Experimental group | Chromosomes contributing to the aneuploidy - oocytes | Chromosomes contributing to the aneuploidy - PBs | |
nondisjunction | PSSC | ||
Miniature pigsyoung | −2, −8, −15 | Euploid | |
+13, +14, +15 | Unsuccessful amplification | ||
+15 | −15 | ||
−9 | +9 | ||
Miniature pigsold | +7,+8,+11,+15 | −7, −8, −11, −15 | |
+5 | −5 | ||
+12 | −12 | ||
−12 | +12 | ||
LxCLWold | −6 | Euploid | |
−8, −13 | Unsuccessful amplification | ||
−13 | Euploid | ||
−1 | +1 | ||
−2 | +2 | ||
+X | −X |
Oocytes with incorrect number of chromosomes are shown for each group. The origin of aneuploidy (chromosome non-disjunction versus premature segregation of sister chromatids - PSSC), chromosomes contributing to aneuploidy and the result of analysis of the corresponding polar body are shown for each cell. LxCLW stands for crossbred of Landrace and Czech Large White pigs.