NDLI: Mapping two major effect grain dormancy QTL in rice

Content Provider	Springer Nature Link
Author	Lu, Bingyue Xie, Kun Yang, Chunyan Wang, Songfeng Liu, Xi Zhang, Long Jiang, Ling Wan, Jianmin
Copyright Year	2010
Abstract	The intrachromosomal positions of the two grain dormancy quantitative trait loci (QTL) qSdn-1 (chromosome 1) and qSdn-5 (chromosome 5) were obtained from the segregation analysis of the advanced backcross populations derived from the cross between rice (Oryza sativa L.) cultivars N22 (indica) and Nanjing35 (japonica). Marker-assisted selection (MAS) was applied to select derivatives carrying one or both of qSdn-1 and qSdn-5 in a genetic background which was nearly isogenic to Nanjing35. An analysis of dormancy in the BC4F2 population allowed qSdn-1 to be located between the simple sequence repeat (SSR) markers RM11669 and RM1216; the QTL explained 24.58% of the overall phenotypic variation and the most closely linked marker was RM11694. qSdn-5 was mapped between RM480 and RM3664, and explained 17.58% of the overall phenotypic variation. The SSR locus RM19080 mapped within 0.4 cM of qSdn-5. No epistasis was observed between qSdn-1 and qSdn-5. The mean germination rates of lines containing qSdn-1, qSdn-5 and both qSdn-1 and qSdn-5 were 7.9, 11.1 and 6.1%, respectively, whereas that of the check line lacking both QTL was 86.3%. The SSR loci linked most tightly to qSdn-1 and qSdn-5 are suitable for MAS for reduced pre-harvest sprouting in rice. The dormancy of both qSdn-1 and qSdn-5 could be readily broken by a 7-day post-harvest treatment at 50°C.
Starting Page	453
Ending Page	462
Page Count	10
File Format	PDF
ISSN	13803743
Journal	Molecular Breeding
Volume Number	28
Issue Number	4
e-ISSN	15729788
Language	English
Publisher	Springer Netherlands
Publisher Date	2010-09-02
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Dormancy Advanced backcross population Epistatic interaction Dry heat treatment Rice (Oryza sativa L.) Plant Physiology Plant Genetics & Genomics Plant Sciences Biotechnology Plant Pathology
Content Type	Text
Resource Type	Article
Subject	Genetics Plant Science Molecular Biology Biotechnology Agronomy and Crop Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

QTL Identification and Fine Mapping for Seed Storability in Rice (Oryza sativa L.)

Exploring sheath blight quantitative trait loci in a Lemont/O. meridionalis advanced backcross population

Identification of rice sheath blight and blast quantitative trait loci in two different O. sativa/O. nivara advanced backcross populations

Evaluation of a M-202 × Oryza nivara advanced backcross mapping population for seedling vigor, yield components and quality

Mapping of QTLs for eating and cooking quality-related traits in rice (Oryza sativa L.)

QTL analysis of seed dormancy in rice (Oryza sativa L.)

QTL mapping of dehiscence length at the basal part of thecae related to heat tolerance of rice (Oryza sativa L.)

Clustered QTL for source leaf size and yield traits in rice (Oryza sativa L.)

Mapping QTLs for salt tolerance in an introgression line population between Japonica cultivars in rice

Mapping two major effect grain dormancy QTL in rice

Similar Documents

QTL Identification and Fine Mapping for Seed Storability in Rice (Oryza sativa L.)

Exploring sheath blight quantitative trait loci in a Lemont/O. meridionalis advanced backcross population

Identification of rice sheath blight and blast quantitative trait loci in two different O. sativa/O. nivara advanced backcross populations

Evaluation of a M-202 × Oryza nivara advanced backcross mapping population for seedling vigor, yield components and quality

Mapping of QTLs for eating and cooking quality-related traits in rice (Oryza sativa L.)

QTL analysis of seed dormancy in rice (Oryza sativa L.)

QTL mapping of dehiscence length at the basal part of thecae related to heat tolerance of rice (Oryza sativa L.)

Clustered QTL for source leaf size and yield traits in rice (Oryza sativa L.)

Mapping QTLs for salt tolerance in an introgression line population between Japonica cultivars in rice

Mapping two major effect grain dormancy QTL in rice