Among them, 13 members of group IV constitute the most collinear gene pairs (13 of 29), accounting for 45%%, and all the group V members and more than 65%% of the group I (4 of 6) and group VII (10 of 12) members were found to be present on the duplicated segments of tomato chromosomes.
Furthermore, 14 out of 27 gene pairs identified (Additional file 11: Table S6) are located on the duplicated segmental regions of tomato chromosomes, suggesting the existence of unidentified duplicated chromosomal segments on tomato chromosomes.
While we were able to confirm synteny on a genome scale with segments of the tomato and potato genome > 100 kb, we have also demonstrated that synteny is not absolute and that insertions/deletions as well as micro-inversions have occurred since the divergence of potato and tomato.
Comparison of sequenced segments of the tomato genome with the Arabidopsis genome reveals multiple large-scale genome duplications are present in Arabidopsis [ 58] but not Lycopersicon, suggesting that the low numbers of expressed MST loci in tomato may be a result, at least in part, of fewer large-scale genome duplication events in its evolutionary history.
Based on our analysis, we propose that the majority of SlbHLHs may have been generated via gene duplication rather than segment duplication in the genome of tomato.
RFLP analysis of the size of chromosomal segments retained around the Tm-2 locus of tomato during backcross breeding.
A gene-containing BAC sequence of tomato (asteroid I) had conserved synteny with four different segments of Arabidopsis chromosomes 2 5 [ 19].
To serve, place in each bowl four croutons, two fillets of tomato seeds, four cherry tomato halves, three cucumber cubes and three onion segments.
Spoonfuls of tomato salsa?
Northern blot analysis showed that LeGMP was constitutively expressed in roots, stems, leaves, flowers and fruits of tomato; but the expression levels varied.LeGMP was mapped to 3-D using 75 tomato introgression lines (ILs), each containing a single homozygous RFLP-defined chromosome segment from the green-fruited species Lycopersicon pennellii.
It was known as "Dr. Miles' Compound Extract of Tomato".
