SNP genotyping and characterization of pistil traits revealing a distinct phylogenetic relationship among the species of Oryza

摘要: The genomic structure of Oryza species is informative to widen the genetic base and design strategies for more efficient rice improvement programs. 384-plex GoldenGate SNP genotyping 48 accessions cultivated wild were used determine population explore variation in stigma style length species. More than 98 % SNPs amplified O. sativa subspecies indica japonica whereas, among AA genome species, longistaminata meridionalis had lowest amplification 80 72 %, respectively. Population analysis grouped into six subpopulations: I. indica, II. japonica, III. nivara, IV. complex, V. officinalis VI. meyeriana ridleyi complex. Phylogentic based on evolutionary dissimilarities supported most groupings done bayesian cluster analysis. A wide range variability was present pistil characteristics Among genome, has significantly longer stigma, style, total remaining We identified five loci chromosomes 3, 4, 7, 10 that have shown significant association with length, plus explained 17–24 phenotypic variation. study useful unravel mechanisms governing natural which will be improving out-crossing rate increased hybrid seed production.