Sequence and analysis of the tomato JOINTLESS locus

L. Mao, D. Begum, S. A. Goff, R. A. Wing

Research output: Contribution to journalArticle

31 Scopus citations

Abstract

A 119-kb bacterial artificial chromosome from the JOINTLESS locus on the tomato (Lycopersicon esculentum) chromosome 11 contained 15 putative genes. Repetitive sequences in this region include one copia-like LTR retrotransposon, 13 simple sequence repeats, three copies of a novel type III foldback transposon, and four putative short DNA repeats. Database searches showed that the foldback transposon and the short DNA repeats seemed to be associated preferably with genes. The predicted tomato genes were compared with the complete Arabidopsis genome. Eleven out of 15 tomato open reading frames were found to be colinear with segments on five Arabidopsis bacterial artificial chromosome/P1-derived artificial chromosome clones. The synteny patterns, however, did not reveal duplicated segments in Arabidopsis, where over half of the genome is duplicated. Our analysis indicated that the microsynteny between the tomato and Arabidopsis genomes was still conserved at a very small scale but was complicated by the large number of gene families in the Arabidopsis genome.

Original languageEnglish (US)
Pages (from-to)1331-1340
Number of pages10
JournalPlant physiology
Volume126
Issue number3
DOIs
StatePublished - Aug 1 2001

ASJC Scopus subject areas

  • Physiology
  • Genetics
  • Plant Science

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