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Cytogenetic
characterization of Nigerian indigenous pig
Oluwole, O. O.* and
Omitogun, O. G.
Department of Animal Science, Obafemi Awolowo
University, Ile-Ife, Nigeria.
*Corresponding author. E-mail:
oluwafunmike@yahoo.co.uk.
Tel: +234(0)8053570807.
Accepted
17 August, 2009 |
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This work
studied the chromosomal structure of the Nigerian indigenous
pig (NIP). The karyotype was obtained and a detailed
karyogram constructed. Using sixty-two metaphases of the NIP
obtained from both mature male and female leucocytes
culture, the chromosomal structure was studied. The
karyotype obtained was based on the chromosome’s relative
length, centromere position and arm (p/q) ratio. The cells
had the usual diploid complement of 38 chromosomes (2n = 38)
and a nombre fondamental of 64 as in the
exotic. The karyotype of NIP was characterized by
submetacentric chromosome pairs 1 – 7; metacentric
chromosome pairs 8 to 12 and telocentric chromosome pairs 13
to 18 with submetacentric XX for female and XY for male. A
detailed karyogram was constructed from the obtained
results.
Key
words:
Karyotype,
Nombre fondamental, Nigerian indigenous pig. |
