ISOLATION AND MOLECULAR EVOLUTIONARY ANALYSIS OF A CYTOCHROME-C GENE FROM ORYZA-SATIVA (RICE)

作者：KEMMERER EC; LEI M; WU R

来源：Molecular Biology and Evolution, 1991, 8(2): 212-226.

• CLADOGRAMS
• CYTOCHROME-C
• INTRONS
• PHENOGRAMS
• UNIT EVOLUTIONARY PERIOD

A cytochrome c gene, OsCc-1, from rice (Oryza sativa) has been isolated and analyzed. The OsCc-1 gene encodes a cytochrome c protein that is typical of higher-plant cytochrome c proteins. OsCc-1 consists of three exons separated by two introns that are 817 and 747 bp in length, respectively. From genomic DNA hybridization analysis, OsCc-1 appears to be one of possibly two cytochrome c genes in several Asian, American, and Indian rice species and varieties surveyed. A single, unique cytochrome c gene appears to be present in one African cultivated rice species. We performed comparative molecular evolutionary analyses of OsCc-1 and other cytochrome c genes. We calculated a unit evolutionary period of 19.4 Myr for cytochrome c DNA sequences, which agrees closely with previous estimates based on protein sequence comparisons.

• 出版日期1991-3