テラチ トオル   TERACHI TORU
  寺地 徹
   所属   京都産業大学  生命科学部 産業生命科学科
   職種   教授
言語種別 英語
発行・発表の年月 2014/11
形態種別 その他
標題 Complete mitochondrial genome sequence of black mustard (Brassica nigra; BB) and comparison with Brassica oleracea (CC) and Brassica carinata (BBCC)
執筆形態 その他
掲載誌名 GENOME
出版社・発行元 CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS
巻・号・頁 57(11-12),pp.577-582
著者・共著者 Hiroshi Yamagishi,Yoshiyuki Tanaka,Toru Terachi
概要 Crop species of Brassica (Brassicaceae) consist of three monogenomic species and three amphidiploid species resulting from interspecific hybridizations among them. Until now, mitochondrial genome sequences were available for only five of these species. We sequenced the mitochondrial genome of the sixth species, Brassica nigra (nuclear genome constitution BB), and compared it with those of Brassica oleracea (CC) and Brassica carinata (BBCC). The genome was assembled into a 232 145 bp circular sequence that is slightly larger than that of B. oleracea (219 952 bp). The genome of B. nigra contained 33 protein-coding genes, 3 rRNA genes, and 17 tRNA genes. The cox2-2 gene present in B. oleracea was absent in B. nigra. Although the nucleotide sequences of 52 genes were identical between B. nigra and B. carinata, the second exon of rps3 showed differences including an insertion/deletion (indel) and nucleotide substitutions. A PCR test to detect the indel revealed intraspecific variation in rps3, and in one line of B. nigra it amplified a DNA fragment of the size expected for B. carinata. In addition, the B. carinata lines tested here produced DNA fragments of the size expected for B. nigra. The results indicate that at least two mitotypes of B. nigra were present in the maternal parents of B. carinata.
DOI 10.1139/gen-2014-0165
ISSN 0831-2796/1480-3321