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Comparative analysis using available genomic resources within closely related species is an effective way to investigate genomic sequence and structural diversity. Rice (Oryza sativa L.) has undergone significant physiological and morphological changes during its domestication and local adaptation. We present a complete bacterial artificial chromosome (BAC) physical map for the aus rice cultivar ‘Kasalath’,...
Heading date determines rice’s adaptation to its area and cropping season. We analyzed the molecular evolution of the Hd6 quantitative trait locus for photoperiod sensitivity in a total of 20 cultivated varieties and wild rice species and found 74 polymorphic sites within its coding region (1,002 bp), of which five were nonsynonymous substitutions. Thus, natural mutations and modifications of the...
Accurate sequencing of the rice genome has ignited a passion for elucidating mechanism for sequence diversity among rice varieties and species, both in protein-coding regions and in genomic regions that are important for chromosome functions. Here, we have shown examples of sequence diversity in genic and non-genic regions. Sequence analysis of chromosome ends has revealed that there is diversity...
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