Journal article
Identification of QTLs for hybrid fertility in inter-subspecific crosses of rice (Oryza sativa L.)
Genes & genomics, v 33(1), pp 39-48
01 Feb 2011
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Abstract
Two subspecies in rice, japonica and indica, have their own ecotypic traits. However, reproductive barriers such as spikelet sterility in hybrid progenies between subspecies have been an obstacle in breeding programs for combining desirable traits from both subspecies through inter-subspecific hybridization. The 166 F-9 RILs and two BC(1)F(1)s' were analyzed for spikelet and pollen fertility with the parents and F-1 between Dasanbyeo (DS, indica) / TR22183 (TR, japonica). A frame map was constructed using a total of 218 polymorphic STS and SSR markers. In both BC(1)F(1)s' of DS//DS/TR and TR//DS/TR, clusters of significant QTLs for spikelet and pollen fertility were identified on the short arm of chromosome 5 and chromosome 8. Nine and ten digenic epistatic interactions for DS//DS/TR and TR//DS//TR were identified, respectively. HF-QTLs were detected at the similar position with subspecies-specific markers and segregation distortion loci, implying that HF-QTLs might be associated with the differentiation of indica and japonica. Hybrid fertility/sterility and its relationship with other traits are discussed in relation to the reproductive barriers between subspecies of rice.
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Details
- Title
- Identification of QTLs for hybrid fertility in inter-subspecific crosses of rice (Oryza sativa L.)
- Creators
- Joong Hyoun Chin - Plant (United States)Sang-Ho Chu - Plant (United States)Wenzhu Jiang - Plant (United States)Young-Il Cho - Plant (United States)Reflinur Basyirin - Plant (United States)Darshan S. Brar - Rice Research InstituteHee-Jong Koh - Plant (United States)
- Publication Details
- Genes & genomics, v 33(1), pp 39-48
- Publisher
- Springer Nature
- Number of pages
- 10
- Grant note
- KRF- 2005-214-C00230 / Korean Government (MOEHRD); Ministry of Education & Human Resources Development (MOEHRD), Republic of Korea; Korean Government 3111 / Ministry of Science; Ministry of Science, ICT & Future Planning, Republic of Korea Korea Research Foundation; National Research Foundation of Korea
- Resource Type
- Journal article
- Language
- English
- Academic Unit
- Mechanical Engineering and Mechanics
- Web of Science ID
- WOS:000287969000006
- Scopus ID
- 2-s2.0-79954506699
- Other Identifier
- 991020547615004721
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- Collaboration types
- Domestic collaboration
- International collaboration
- Web of Science research areas
- Biochemistry & Molecular Biology
- Biotechnology & Applied Microbiology
- Genetics & Heredity