Yasumoto K

References (4)

Title : A complete mitochondrial genome sequence of Ogura-type male-sterile cytoplasm and its comparative analysis with that of normal cytoplasm in radish (Raphanus sativus L.) - Tanaka_2012_BMC.Genomics_13_352
Author(s) : Tanaka Y , Tsuda M , Yasumoto K , Yamagishi H , Terachi T
Ref : BMC Genomics , 13 :352 , 2012
Abstract : BACKGROUND: Plant mitochondrial genome has unique features such as large size, frequent recombination and incorporation of foreign DNA. Cytoplasmic male sterility (CMS) is caused by rearrangement of the mitochondrial genome, and a novel chimeric open reading frame (ORF) created by shuffling of endogenous sequences is often responsible for CMS. The Ogura-type male-sterile cytoplasm is one of the most extensively studied cytoplasms in Brassicaceae. Although the gene orf138 has been isolated as a determinant of Ogura-type CMS, no homologous sequence to orf138 has been found in public databases. Therefore, how orf138 sequence was created is a mystery. In this study, we determined the complete nucleotide sequence of two radish mitochondrial genomes, namely, Ogura- and normal-type genomes, and analyzed them to reveal the origin of the gene orf138. RESULTS: Ogura- and normal-type mitochondrial genomes were assembled to 258,426-bp and 244,036-bp circular sequences, respectively. Normal-type mitochondrial genome contained 33 protein-coding and three rRNA genes, which are well conserved with the reported mitochondrial genome of rapeseed. Ogura-type genomes contained same genes and additional atp9. As for tRNA, normal-type contained 17 tRNAs, while Ogura-type contained 17 tRNAs and one additional trnfM. The gene orf138 was specific to Ogura-type mitochondrial genome, and no sequence homologous to it was found in normal-type genome. Comparative analysis of the two genomes revealed that radish mitochondrial genome consists of 11 syntenic regions (length >3 kb, similarity >99.9%). It was shown that short repeats and overlapped repeats present in the edge of syntenic regions were involved in recombination events during evolution to interconvert two types of mitochondrial genome. Ogura-type mitochondrial genome has four unique regions (2,803 bp, 1,601 bp, 451 bp and 15,255 bp in size) that are non-syntenic to normal-type genome, and the gene orf138 was found to be located at the edge of the largest unique region. Blast analysis performed to assign the unique regions showed that about 80% of the region was covered by short homologous sequences to the mitochondrial sequences of normal-type radish or other reported Brassicaceae species, although no homology was found for the remaining 20% of sequences. CONCLUSIONS: Ogura-type mitochondrial genome was highly rearranged compared with the normal-type genome by recombination through one large repeat and multiple short repeats. The rearrangement has produced four unique regions in Ogura-type mitochondrial genome, and most of the unique regions are composed of known Brassicaceae mitochondrial sequences. This suggests that the regions unique to the Ogura-type genome were generated by integration and shuffling of pre-existing mitochondrial sequences during the evolution of Brassicaceae, and novel genes such as orf138 could have been created by the shuffling process of mitochondrial genome.
ESTHER : Tanaka_2012_BMC.Genomics_13_352
PubMedSearch : Tanaka_2012_BMC.Genomics_13_352
PubMedID: 22846596
Gene_locus related to this paper: rapsa-a0a6j0jyp3 , rapsa-a0a6j0lzs2 , rapsa-a0a6j0lba8 , rapsa-a0a6j0lmu0

Title : Sequence and analysis of a 31 kb segment of the Bacillus subtilis chromosome in the area of the rrnH and rrnG operons. -
Author(s) : Liu H , Haga K , Yasumoto K , Ohashi Y , Yoshikawa H , Takahashi H
Ref : Microbiology , 143 :2763 , 1997
PubMedID: 9274029

Title : The complete genome sequence of the gram-positive bacterium Bacillus subtilis - Kunst_1997_Nature_390_249
Author(s) : Kunst F , Ogasawara N , Moszer I , Albertini AM , Alloni G , Azevedo V , Bertero MG , Bessieres P , Bolotin A , Borchert S , Borriss R , Boursier L , Brans A , Braun M , Brignell SC , Bron S , Brouillet S , Bruschi CV , Caldwell B , Capuano V , Carter NM , Choi SK , Cordani JJ , Connerton IF , Cummings NJ , Daniel RA , Denziot F , Devine KM , Dusterhoft A , Ehrlich SD , Emmerson PT , Entian KD , Errington J , Fabret C , Ferrari E , Foulger D , Fritz C , Fujita M , Fujita Y , Fuma S , Galizzi A , Galleron N , Ghim SY , Glaser P , Goffeau A , Golightly EJ , Grandi G , Guiseppi G , Guy BJ , Haga K , Haiech J , Harwood CR , Henaut A , Hilbert H , Holsappel S , Hosono S , Hullo MF , Itaya M , Jones L , Joris B , Karamata D , Kasahara Y , Klaerr-Blanchard M , Klein C , Kobayashi Y , Koetter P , Koningstein G , Krogh S , Kumano M , Kurita K , Lapidus A , Lardinois S , Lauber J , Lazarevic V , Lee SM , Levine A , Liu H , Masuda S , Mauel C , Medigue C , Medina N , Mellado RP , Mizuno M , Moestl D , Nakai S , Noback M , Noone D , O'Reilly M , Ogawa K , Ogiwara A , Oudega B , Park SH , Parro V , Pohl TM , Portelle D , Porwollik S , Prescott AM , Presecan E , Pujic P , Purnelle B , Rapoport G , Rey M , Reynolds S , Rieger M , Rivolta C , Rocha E , Roche B , Rose M , Sadaie Y , Sato T , Scanlan E , Schleich S , Schroeter R , Scoffone F , Sekiguchi J , Sekowska A , Seror SJ , Serror P , Shin BS , Soldo B , Sorokin A , Tacconi E , Takagi T , Takahashi H , Takemaru K , Takeuchi M , Tamakoshi A , Tanaka T , Terpstra P , Togoni A , Tosato V , Uchiyama S , Vandebol M , Vannier F , Vassarotti A , Viari A , Wambutt R , Wedler H , Weitzenegger T , Winters P , Wipat A , Yamamoto H , Yamane K , Yasumoto K , Yata K , Yoshida K , Yoshikawa HF , Zumstein E , Yoshikawa H , Danchin A
Ref : Nature , 390 :249 , 1997
Abstract : Bacillus subtilis is the best-characterized member of the Gram-positive bacteria. Its genome of 4,214,810 base pairs comprises 4,100 protein-coding genes. Of these protein-coding genes, 53% are represented once, while a quarter of the genome corresponds to several gene families that have been greatly expanded by gene duplication, the largest family containing 77 putative ATP-binding transport proteins. In addition, a large proportion of the genetic capacity is devoted to the utilization of a variety of carbon sources, including many plant-derived molecules. The identification of five signal peptidase genes, as well as several genes for components of the secretion apparatus, is important given the capacity of Bacillus strains to secrete large amounts of industrially important enzymes. Many of the genes are involved in the synthesis of secondary metabolites, including antibiotics, that are more typically associated with Streptomyces species. The genome contains at least ten prophages or remnants of prophages, indicating that bacteriophage infection has played an important evolutionary role in horizontal gene transfer, in particular in the propagation of bacterial pathogenesis.
ESTHER : Kunst_1997_Nature_390_249
PubMedSearch : Kunst_1997_Nature_390_249
PubMedID: 9384377
Gene_locus related to this paper: bacsu-CAH , bacsu-cbxnp , bacsu-lip , bacsu-LIPB , bacsu-PKSR , bacsu-pnbae , bacsu-PPSE , bacsu-srf4 , bacsu-srfac , bacsu-YBAC , bacsu-YBDG , bacsu-ybfk , bacsu-ycgS , bacsu-yczh , bacsu-YDEN , bacsu-ydjp , bacsu-yfhM , bacsu-yisY , bacsu-YITV , bacsu-yjau , bacsu-YJCH , bacsu-MHQD , bacsu-yqjl , bacsu-yqkd , bacsu-YRAK , bacsu-YTAP , bacsu-YTMA , bacsu-YTPA , bacsu-ytxm , bacsu-yugF , bacsu-YUII , bacsu-YUKL , bacsu-YVAK , bacsu-YvaM , bacsu-RsbQ

Title : Sequence analysis of a 50 kb region between spo0H and rrnH on the Bacillus subtilis chromosome - Yasumoto_1996_Microbiology_142 ( Pt 11)_3039
Author(s) : Yasumoto K , Liu H , Jeong SM , Ohashi Y , Kakinuma S , Tanaka K , Kawamura F , Yoshikawa H , Takahashi H
Ref : Microbiology , 142 ( Pt 11) :3039 , 1996
Abstract : The 49630 bp spo0H-rrnH region of the Bacillus subtilis genome has been fully sequenced. The sequence contains one partial and 62 complete ORFs, one partial and three complete rRNA genes and a cluster of six tRNA genes. The direction of the transcription and translation of 61 ORFs is the same as that of the movement of the replication fork. A homology search of 40 ORFs in newly determined sequence revealed that 27 of them had significant similarity to known proteins such as elongation factor G, elongation factor Tu, pseudouridine synthase I and ribsosomal proteins. Two adjacent genes, ybaD and ybaE, appeared to encode proteins belonging to the ATP-binding cassette (ABC) family.
ESTHER : Yasumoto_1996_Microbiology_142 ( Pt 11)_3039
PubMedSearch : Yasumoto_1996_Microbiology_142 ( Pt 11)_3039
PubMedID: 8969501
Gene_locus related to this paper: bacsu-YBAC