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Discovery of Functional SNPs via Genome-Wide Exploration of Malaysian Pigmented Rice Varieties.


ABSTRACT: Recently, rice breeding program has shown increased interests on the pigmented rice varieties due to their benefits to human health. However, the genetic variation of pigmented rice varieties is still scarce and remains unexplored. Hence, we performed genome-wide SNP analysis from the genome resequencing of four Malaysian pigmented rice varieties, representing two black and two red rice varieties. The genome of four pigmented varieties was mapped against Nipponbare reference genome sequences, and 1.9 million SNPs were discovered. Of these, 622 SNPs with polymorphic sites were identified in 258 protein-coding genes related to metabolism, stress response, and transporter. Comparative analysis of 622 SNPs with polymorphic sites against six rice SNP datasets from the Ensembl Plants variation database was performed, and 70 SNPs were identified as novel SNPs. Analysis of SNPs in the flavonoid biosynthetic genes revealed 40 nonsynonymous SNPs, which has potential as molecular markers for rice seed colour identification. The highlighted SNPs in this study show effort in producing valuable genomic resources for application in the rice breeding program, towards the genetic improvement of new and improved pigmented rice varieties.

SUBMITTER: Zainal-Abidin RA 

PROVIDER: S-EPMC6811786 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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Discovery of Functional SNPs via Genome-Wide Exploration of Malaysian Pigmented Rice Varieties.

Zainal-Abidin Rabiatul-Adawiah RA   Abu-Bakar Norliza N   Sew Yun-Shin YS   Simoh Sanimah S   Mohamed-Hussein Zeti-Azura ZA  

International journal of genomics 20191010


Recently, rice breeding program has shown increased interests on the pigmented rice varieties due to their benefits to human health. However, the genetic variation of pigmented rice varieties is still scarce and remains unexplored. Hence, we performed genome-wide SNP analysis from the genome resequencing of four Malaysian pigmented rice varieties, representing two black and two red rice varieties. The genome of four pigmented varieties was mapped against Nipponbare reference genome sequences, an  ...[more]

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