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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2021.12
- 수록면
- 392 - 403 (12page)
- DOI
- 10.9787/KJBS.2021.53.4.392
이용수
초록· 키워드
오류제보하기
Interspecific and intersubspecific crosses have been an important strategy for rice breeding programs to obtain useful charactersby expanding genetic diversity. However, the wide cross routinely causes undesirable characters in rice, such as spikelet sterility and poorquality. In this study, we developed near-isogenic lines of R-gene (Xa4+xa5+Xa21+Pi40+Bph18) introgression population to investigate thegenetic relationship between the occurrence of poor characters and R-genes induced by MAS. The ANOVA analysis revealed that Pi40, Bph18,and Xa4 were associated with spikelet fertility (SF), ratio of ripened grain (RRG), third internode length (TIL), panicle extraction (PE), andprotein content (Pro), whereas others showed no association with the 14 traits tested. In the three-way ANOVA, the impact of two R-genes(Pi40 and Bph18) on the poor characters was independent, with no interaction with others. Quantitative trait locus (QTL) analysis identifiedQTLs for PE and TIL traits near Pi40, and in particular, QTLs for five traits (SF, RRG, TIL, PE, and Pro) were negatively affected aroundBph18. The occurrence of a poor character in R-gene pyramiding lines could be associated with linkage drag caused by the Bph18 gene.
We speculate that the development of DNA markers that effectively eliminate poor characters will not only improve breeding efficiency usingMAS, but will also help improve traits of japonica rice through wide crossing.
목차
등록된 정보가 없습니다.
참고문헌 (25)
참고문헌 신청
최임수 / 2015 / 중생 복합내병성 고품질 벼 ‘청운’ / 한국육종학회지 47(2):166~172
Jena KK / 2006 / High-resolution mapping of a new brown planthopper (BPH) resistance gene, Bph18 (t), and marker-assisted selection for BPH resistance in rice (Oryza sativa L.) / Theor Appl Genet 112:288~297
Jena KK / 2017 / Development of 25 near-isogenic lines (NILs) with ten BPH resistance genes in rice (Oryza sativa L.): production, resistance spectrum, and molecular analysis / Theor Appl Genet 130:2345~2360
Jeung JU / 2007 / A novel gene, Pi40(t), linked to the DNA markers derived from NBS-LRR motifs confers broad spectrum of blast resistance in rice / Theor Appl Genet 115:1163~1177
정지웅 / 2016 / 고온조건에서 등숙이 양호하고 도열병에 강한 조생 고품질 벼 ‘중모1024’ 육성 / 한국육종학회지 48(1):72~84
Jena KK / 2006 / High-resolution mapping of a new brown planthopper (BPH) resistance gene, Bph18 (t), and marker-assisted selection for BPH resistance in rice (Oryza sativa L.) / Theor Appl Genet 112:288~297
Jena KK / 2017 / Development of 25 near-isogenic lines (NILs) with ten BPH resistance genes in rice (Oryza sativa L.): production, resistance spectrum, and molecular analysis / Theor Appl Genet 130:2345~2360
Jeung JU / 2007 / A novel gene, Pi40(t), linked to the DNA markers derived from NBS-LRR motifs confers broad spectrum of blast resistance in rice / Theor Appl Genet 115:1163~1177
정지웅 / 2016 / 고온조건에서 등숙이 양호하고 도열병에 강한 조생 고품질 벼 ‘중모1024’ 육성 / 한국육종학회지 48(1):72~84
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