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Genetic and molecular basis of fragrance in rice

Paper ID Volume ID Publish Year Pages File Format Full-Text
14510 1225 2009 6 PDF Available
Title
Genetic and molecular basis of fragrance in rice
Abstract

Fragrance or aroma in rice is considered as a special trait with huge economic importance that determines the premium price in global trade. With the availability of molecular maps and genome sequences, a major gene for fragrance (badh2) was identified on chromosome 8. An 8-bp deletion in the exon 7 of this gene was reported to result in truncation of betaine aldehyde dehydrogenease enzyme whose loss-of-function lead to the accumulation of a major aromatic compound, 2-acetyl 1-pyrroline (2AP) in fragrant rice. However, several studies have reported exceptions to this mutation and indicated the involvement of other genetic loci in controlling fragrance trait. These studies emphasize the need to characterize the fragrance and its underlying factors in a wide range of genetic resources available for this trait. This review summarizes the new insights gained on the genetic and molecular understanding of fragrance in rice.

Keywords
Aroma; Fragrance; Scent; Molecular basis; badh2; fgr; 2AP; Rice
First Page Preview
Genetic and molecular basis of fragrance in rice
Publisher
Database: Elsevier - ScienceDirect
Journal: Biotechnology Advances - Volume 27, Issue 4, July–August 2009, Pages 468–473
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering