Mitochondrial DNA polymorphism and determination of effects on reproductive trait in pigs.

Full Abstract

The purposes of this study were to investigate single strand conformation polymorphisms (SSCP) in the D-loop region of pig mitochondrial DNA (mtDNA) and to determinate their association with the reproductive traits of meishan pigs. A total of four types of band patterns, designed SSCP band pattern A, B, C and D, were identified. A type of SSCP band pattern was present in all European-American breeds, but not in East Asian breeds. This result showed the diversified sequence in the D-loop region between European-American and East Asian populations. Two types of band patterns, B and C, were found in Meishan pigs. The average body weight at day 21 of piglets from B type dams was significantly heavier than the body weight of C type (p < 0.05). We also tested whether the SSCP patterns would be suitable for paternity testing in a family group and found that bands of all the offspring were derived from their maternal parent. Therefore, we conclude that SSCP may be a marker for identification of maternal ancestors.

Author information

Author/s: Yen, N-T (NT); Lin, C-S (CS); Ju, C-C (CC); Wang, S-C (SC); Huang, M-C (MC);

Affiliation: Department of Animal Science, National Chung Hsing University, Taichung, Taiwan.

Journal and publication information

Publication Type: Journal Article

Journal: Reproduction in domestic animals = Zuchthygiene (Reprod Domest Anim), published in Germany. (Language: eng)

Reference: 2007-Aug; vol 42 (issue 4) : pp 387-92

Dates: Created 2007/07/19; Completed 2007/09/06; Revised 2008/11/21;

PMID: 17635776, status: MEDLINE (last retrieval date: 2/18/2009, IMS Date: )

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