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Sequence and Analysis of the Tomato JOINTLESS Locus - 2001-1988 - News
2001-1988 : Sequence and Analysis of the Tomato JOINTLESS Locus
Posted by webmaster on 2001/7/31 23:50:00 ( 1876 reads )

Long Mao, Dilara Begum, Stephen A. Goff, and Rod A. Wing

Plant Physiol. 2001 July; 126(3): 1331–1340.

PMCID: PMC116490

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.

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