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The Hsp20 genes represent the most abundant small heat shock proteins (sHSPs) in plants. Hsp20 gene family has been shown to be involved in preventing heat shock and promoting resistance to environmental stress factors, but very little is known about this gene family in rice. Here, we report the identification and characterization of 39 OsHsp20 genes in(More)
Miniature inverted-repeat transposable elements (MITEs) are prevalent in eukaryotic species including plants. MITE families vary dramatically and usually cannot be identified based on homology. In this study, we de novo identified MITEs from 41 plant species, using computer programs MITE Digger, MITE-Hunter and/or Repetitive Sequence with Precise Boundaries(More)
The sequenced genomes of cucumber, melon and watermelon have relatively few R-genes, with 70, 75 and 55 copies only, respectively. The mechanism for low copy number of R-genes in Cucurbitaceae genomes remains unknown. Manual annotation of R-genes in the sequenced genomes of Cucurbitaceae species showed that approximately half of them are pseudogenes.(More)
Resistance (R) genes represent one of the most divergent gene families in plants. Novel resistance function might arise through point mutations or sequence exchanges between paralogues (Kuang et al., 2004; Luo et al., 2011, 2012). Sequence exchanges between homologues may generate a large number of distinct genes. In fact, some R gene families are extensive(More)
Several resistance traits, including the I2 resistance against tomato fusarium wilt, were mapped to the long arm of chromosome 11 of Solanum. However, the structure and evolution of this locus remain poorly understood. Comparative analysis showed that the structure and evolutionary patterns of the I2 locus vary considerably between potato and tomato. The I2(More)
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