Major Sperm Protein Genes from Globodera rostochiensis
AbstractThree genes in the major sperm protein (MSP) gene family from the potato cyst nematode Globodera rostochiensis were cloned and sequenced. In contrast to the absence of introns in Caenorhabditis elegans MSP genes, these genes in G. rostochiensis contained a 57 nucleotide intron, with normal exon-intron boundaries, in the same relative location as the intron in Onchocerca volvulus. The MSP genes of G. rostochiensis had putative CAAT, TATA, and polyadenylation signals. The predicted G. rostochiensis MSP gene product is 126 amino acids long, one residue shorter than the products in the other species. The comparison of MSP amino acid sequences from four diverse nematode species suggests that O. volvulus, Ascaris suum, and C. elegans may be more closely related to each other than they are to G. rostochiensis. Key words: Ascaris suum, Caenorhabditis elegans, DNA, gene, Globodera rostochiensis, major sperm protein, nematode, Onchocerca volvulus.
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