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- W2913309800 abstract "Abstract Purpleputtu ( Oryza sativa ssp. indica cv . Purpleputtu) is a unique rice landrace from southern India that exhibits predominantly purple color. This study reports the underlying genetic complexity of the trait and associated domestication and de-domestication processes during its coevolution with present day cultivars. Along-with genome level allelic variations in the entire gene repertoire associated with purple, red coloration of grain and other plant parts. Comparative genomic analysis of the whole genome sequence of Purpleputtu (PP) revels total of 3,200,951 variants including 67,774 unique variations were observed in PP when compared with 108 rice genomes. Multiple sequence alignment uncovered a 14bp deletion in Rc ( Red colored , a transcription factor of bHLH class) locus of PP, a key regulatory gene of anthocyanin biosynthetic pathway. Interestingly, this deletion in Rc gene is a characteristic feature of the present-day white pericarped rice cultivars. Phylogenetic analysis of Rc locus revealed a distinct clade showing proximity to the progenitor species rufipogon and nivara . In addition, PP genome exhibits a well conserved a 4.5Mbp region on chromosome 5 that harbors several loci associated with domestication of rice. Further, PP showed 1,387 unique SNPs compared to 3,024 lines of rice (SNP-Seek database). The results indicate that PP genome is rich in allelic diversity and can serve as an excellent resource for rice breeding for a variety of agronomically important traits such as disease resistance, enhanced nutritional values, stress tolerance and protection from harmful UV-B rays." @default.
- W2913309800 created "2019-02-21" @default.
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- W2913309800 date "2019-01-31" @default.
- W2913309800 modified "2023-09-29" @default.
- W2913309800 title "Whole genome sequencing and comparative genomic analysis reveal novel allelic variations unique to a purple colored rice landrace (Oryza sativa ssp. indica cv. Purpleputtu)" @default.
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- W2913309800 doi "https://doi.org/10.1101/536326" @default.
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