Abstract:
:Fragrance is an important component of end-use quality in rice. A set of 516 fragrant rice accessions were genotyped and over 80% of them carried the badh2.7 allele. A subset of 144 mostly fragrant accessions, including nine of Oryza rufipogon, was then subjected to a detailed diversity and haplotype analysis. The level of linkage disequilibrium in the Badh2 region was higher among the fragrant accessions. Re-sequencing in the Badh2 region showed that badh2.7, badh2.2 and badh2.4-5 all arose in the japonica genepool, and spread later into the indica genepool as a result of deliberate crossing. However, loss-of-function alleles of Badh2 are also found in the indica genepools, and then transferred into japonica. Evidence for three new possible FNPs was obtained from the Badh2 sequence of 62 fragrant accessions. Based on these data, we have elaborated a model for the evolution of Badh2 and its participation in the rice domestication process.
journal_name
Genomicsjournal_title
Genomicsauthors
Shao G,Tang S,Chen M,Wei X,He J,Luo J,Jiao G,Hu Y,Xie L,Hu Pdoi
10.1016/j.ygeno.2012.11.010subject
Has Abstractpub_date
2013-02-01 00:00:00pages
157-62issue
2eissn
0888-7543issn
1089-8646pii
S0888-7543(12)00230-3journal_volume
101pub_type
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