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Author Marathi B., Jena K.K.
Title Floral traits to enhance outcrossing for higher hybrid seed production in rice: present status and future prospects
Abstract:
High seed cost is a major factor limiting the adoption of hybrid rice in South and Southeast Asian countries. A practical way to improve hybrid seed production is to increase the outcrossing rate in rice. Several studies reveal that perennial wild Oryza species have a higher outcrossing rate than annual species. Among various traits that influence outcrossing, pistil characteristics are the most crucial in improving the seed set on the male sterile parent in hybrid seed production. Wild species are known to have wide genetic variability for stigma length, anther length, and percent stigma exsertion. This review establishes the need to exploit new genetic resources, through both classical and molecular breeding approaches, to improve seed production. It also reviews the genetic variability of floral characteristics, the genetics of floral traits that influence outcrossing, and progress made in understanding these traits using biotechnological approaches, the effect of environment on floral traits and the resulting prospects for improving hybrid rice seed production.
Journal Euphytica
Country the Philippines
Volume 201
Pages 1-14
Year 2014
PubMed ID -
PubMed Central ID -
DOI 10.1007/s10681-014-1251-9
URL -
Relation
Gene AID1 CP1 CYP704B2 DL LHS1 MADS13 MADS2 MADS24 MADS4 MADS58 MADS7 MFO1 RAG RAP1A SPW1 TDR UDT1 WDA1
INSD -
Strain Wild Core Collection -
Sterile Seed Strain -
Lethal Embryo
Mutantion Strain
-
Stages in Each Organ
- Muant Lines (Gene)
-
Cultivated Varieties(NIG Collection) -
Stages in Each Organ -
/rice/oryzabase