The rice cultivar ‘Chamdongjin’ was developed to enhance the disease resistance of ‘Sindongjin’. ‘Sindongjin’, developed by theRDA in 1999, is a mega-variety with a unique grain size and excellent taste, and has been cultivated in the larg...
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https://www.riss.kr/link?id=A108495408
박현수 (농촌진흥청 국립식량과학원 작물육종과) ; 백만기 (농촌진흥청 국립식량과학원 작물육종과) ; 김우재 (농촌진흥청 국립식량과학원 작물육종과) ; 서정필 (농촌진흥청 국립식량과학원 작물육종과) ; 이점호 (농촌진흥청 국립식량과학원 작물육종과) ; 정지웅 (농촌진흥청 국립식량과학원 작물육종과) ; 김춘송 (농촌진흥청 국립식량과학원 작물육종과) ; 정오영 (농촌진흥청 국립식량과학원 작물육종과) ; 이덕렬 (전라북도농업기술원 농업환경과) ; 이창민 (농촌진흥청 국립식량과학원 작물육종과) ; 정종민 (농촌진흥청 대변인실) ; 모영준 (전북대학교) ; 하수경 (농촌진흥청 국립식량과학원 작물육종과) ; 이동규 (농촌진흥청 국립식량과학원 작물육종과) ; 지현소 (농촌진흥청 국립농업과학원 유전자공학과) ; 서정환 (농촌진흥청 국립식량과학원 작물육종과) ; 박재령 (농촌진흥청 국립식량과학원 작물육종과) ; 이현숙 (농촌진흥청 국립식량과학원 작물육종과) ; 박송희 (농촌진흥청 국립식량과학원 작물육종과) ; 진민아 (농촌진흥청 국립식량과학원 작물육종과) ; 김기영 (농촌진흥청 국립식량과학원 작물육종과)
2023
Korean
KCI등재
학술저널
86-102(17쪽)
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
The rice cultivar ‘Chamdongjin’ was developed to enhance the disease resistance of ‘Sindongjin’. ‘Sindongjin’, developed by theRDA in 1999, is a mega-variety with a unique grain size and excellent taste, and has been cultivated in the larg...
The rice cultivar ‘Chamdongjin’ was developed to enhance the disease resistance of ‘Sindongjin’. ‘Sindongjin’, developed by theRDA in 1999, is a mega-variety with a unique grain size and excellent taste, and has been cultivated in the largest area in Korea since2018. As ‘Sindongjin’ has been cultivated in a large area recently, problems such as pest damage are increasing, and the necessity to developalternative cultivars is emerging. Accordingly, the multiple disease-resistant, mid-late maturing rice cultivar ‘Chamdongjin’, carrying the bacterialblight resistance gene Xa21 into the genetic background of ‘Sindongjin’, was developed. ‘Chamdongjin’ was developed by the backcrossingmethod using the donor parent ‘HR27195-59-3-5-5’, harboring the bacterial blight resistance genes Xa3+Xa21 and the recurrent parent‘Sindongjin’. ‘Chamdongjin’ was selected through the pedigree method, yield trials, and local adaptability tests, with a high selection pressurefor agronomic trait similarities with ‘Sindongjin’. In order to effectively improve the disease resistance, marker-assisted selection for diseaseresistance genes and bioassays for bacterial blight, blast, and stripe virus were performed in parallel. ‘Chamdongjin’ was confirmed to havethree disease-resistance genes, Xa3+Xa21+Stvb-i. Most of agronomic traits of ‘Chamdongjin’ were similar to ‘Sindongjin’, while ‘Chamdongjin’showed enhanced disease resistance against bacterial blight and panicle blast compared to ‘Sindongjin’. ‘Chamdongjin’, like ‘Sindongjin’,possessed a grain size-related gene, the gs3 allele, and exhibited larger grains than general Korean japonica cultivars. In addition, ‘Chamdongjin’showed a similar or higher level of palatability compared to ‘Sindognjin’, indicating the excellent quality characteristics. In the genetic backgroundanalysis using 787 KASP markers, ‘Chamdongjin’ showed 96.3% homozygosity with ‘Sindongjin’, indicating that it had a more similar geneticbackground to ‘Sindongjin’ than to other existing cultivars. ‘Chamgdongjin’ is expected to be widely cultivated as an alternative to ‘Sindongjin’,which could maintain the brand value while preventing the disease damage caused to ‘Sindongjin’ (Registration No. 9310).
밥맛과 재배안정성이 강화된 조생종 최고품질 벼 ‘해들’
보리호위축병저항성으로 도복에 강한 다수성 맥주보리 ‘다이안’