NDLI: Mapping of QTLs conferring extremely early heading in rice (Oryza sativa L.)

Content Provider	Springer Nature Link
Author	Fuji, Kenji Sekiguchi, Hiroshi
Copyright Year	2005
Abstract	Two genes related to extremely early heading were identified in populations derived from crosses between Hoshinoyume, a variety adapted to the northernmost limit of rice cultivation (Hokkaido), and Nipponbare, a variety adapted to the temperate region of Japan. The segregations for heading date clearly revealed that a two-gene model determined the extremely early heading in the F2 and BC1F1 populations under natural field conditions in Hokkaido. Using molecular markers corresponding to ten known quantitative trait loci (QTLs) for heading date, we carried out QTL analysis in the BC1F1 population and detected two QTLs, qDTH-7-1 and qDTH-7-2, both on chromosome 7, and observed epistatic interaction between them. We conclude that the recessive alleles of these two genes contribute to extremely early heading for the adaptation to Hokkaido environment and to stable rice production in Hokkaido. The relationships between the two QTLs identified in this study and known QTLs are discussed.
Starting Page	393
Ending Page	398
Page Count	6
File Format	PDF
ISSN	00405752
Journal	Theoretical and Applied Genetics
Volume Number	111
Issue Number	2
e-ISSN	14322242
Language	English
Publisher	Springer-Verlag
Publisher Date	2005-06-07
Publisher Place	Berlin/Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Content Type	Text
Resource Type	Article
Subject	Genetics Medicine Biotechnology Agronomy and Crop Science

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Mapping of QTLs conferring extremely early heading in rice (Oryza sativa L.)