論文

査読有り
2014年

Regulatory change in cell division activity and genetic mapping of a tomato (Solanum lycopersicum L.) elongated-fruit mutant

PLANT BIOTECHNOLOGY
  • Katarut Chusreeaeom
  • ,
  • Tohru Ariizumi
  • ,
  • Erika Asamizu
  • ,
  • Yoshihiro Okabe
  • ,
  • Kenta Shirasawa
  • ,
  • Hiroshi Ezura

31
2
開始ページ
149
終了ページ
158
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.5511/plantbiotechnology.14.0204a
出版者・発行元
JAPANESE SOC PLANT CELL & MOLECULAR BIOLOGY

Tomato elongated-fruit mutants have proven useful for elucidation and mapping of genes that regulate fruit elongation. We previously identified a novel tomato mutant, Solanum lycopersicum elongated fruit1 (Slelf1), which exhibits an elongated fruit shape caused by increased cell layers in the ovary proximal region, and located the causal genes on the long arm of chromosome 8. In this study, we isolated and characterized two independent tomato mutants, Solanum lycopersicum elongated fruit2 and 3 (Slelf2 and Slelf3). Histological analysis revealed that the Slelf2 mutant ovary displayed an overall elongated shape, whereas the developing ovary of the Slelf3 mutant was primarily expanded in the proximal region. We developed an intra-specific F-2 population by crossing Slelf3 with Ailsa Craig, a related cultivar. Mapping of this population confirmed that the candidate gene of the Slelf3 mutation was positioned on the short arm of chromosome 7, in a region of approximately 0.4 Mb. These results indicate that the causal gene is a novel locus differing from previous genes known to affect fruit shape elongation in tomatoes. In addition, analysis of transcript levels of genes related to cell division and expansion in the Slelf3 mutant suggested that the mutated gene most likely regulates cell division activity, predominantly in the proximal region.

Web of Science ® 被引用回数 : 5

リンク情報
DOI
https://doi.org/10.5511/plantbiotechnology.14.0204a
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000339501900008&DestApp=WOS_CPL

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