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Reports on the occurrence of single nucleotide polymorphisms in the pig. Mutations of the alpha-inhibin gene; Comparison of gene sequences derived from wild boar, white Meishan and Pietrain pig breeds; Gene segregation; Chromosomal localization.

Discusses a study which described a single-strand conformation polymorphism in the ovine interleukin-2 gene. Source and description of gene primers; Primer gene sequences; Inheritance pattern.

Provides information on the results of the linkage analyses between the identified microsatellite and genetic markers on goat chromosomes. Information on the glycoprotein hormone Inhibin-alpha; Source and description of primers; Method of detection.

Two major Ovis aries mitochondrial DNA (mtDNA) haplogroups have been described in independent studies. HinfI RFLP data of mitochondrial genomes from a large sample set (n = 239) indicated an ancient mutation which differentiates between the two mtDNA types. A completely determined sheep mtDNA sequence was used to assign this mutation to the COI gene and to develop a PCR based assay discriminating between the two phylogenetic branches. The haplogroup specificity of the mutation was further investigated in 26 randomly selected individuals. The animals were unequivocally assigned to their respective groups on the basis of the developed test and their complete control region sequences. The assay provides a rapid and economic means of discriminating between both major domestic sheep mtDNAs. [ABSTRACT FROM AUTHOR]