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대메뉴안내: 농수식품
농림성과 수산성과 식품성과 인터뷰
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한국생명공학연구원
 
조회177  주소복사  소셜네트워크로 공유하기
Genetic analysis of the Lf1 gene that controls leaflet number in soybean

Soon-Chun Jeong1,*, Ji Hong Kim1, Dong Nyuk Bae1

1
Bio-Evaluation Center, Korea Research Institute of Bioscience and Biotechnology Cheongju, Korea

*Corresponding author

Abstract
Changes in leaf architecture as photosynthesis factories remain a major challenge for the improvement of crop productivity. Unlike most soybeans, which have compound leaves comprising three leaflets, the soybean Lf1 mutant has a high frequency of compound leaves with five leaflets in a partially dominant manner. Here, we generated a fine genetic map to determine the genetic basis of this multifoliolate leaf trait. A five-leaflet variant Dusam was found in a recently collected landrace cultivar. Phenotypic data were collected from the F2 population of a cross between the Dusam and three-leaflet cultivar V94-5152. The mapping results generated using public markers indicated that the five-leaflet determining gene in Dusam is an allele of the previously studied Lf1 gene on chromosome 8. A high-resolution map delimited the genomic region controlling the leaflet number trait to a sequence length of 49 kb. AP2 domain-containing Glyma.08g281900 annotated in this 49 kb region appeared to be a strong candidate for the Lf1-encoding gene, as members of the AP2-type transcription factor family regulate lateral organ development. Dusam additionally exhibits visually distinct phenotypes for shattering and seed-coat cracking traits. However, the two traits were clearly unlinked to the Lf1 gene in our mapping population. Interestingly, the mapping results suggest that the Lf1 gene most likely exerts a pleiotropic effect on the number of seeds per pod. Thus, our results provide a strong foundation towards the cloning of this compound leaf development gene and marker-assisted selection of the seeds per pod trait.

논문정보
- 형식: Research article
- 게재일: 2017년 08월 (BRIC 등록일 2017-07-26)
- 연구진: 국내연구진 태극기
- 분야: Genetics, Plant Science
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에펜도르프(T:1577-4395) 스폰서배너광고 안내
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Google scholar (by Soon-Chun Jeong)
Pubmed (by Soon-Chun Jeong)
프리미엄 Bio일정 Bio일정 프리미엄 안내
[9월 27일 수요일] 설계기반 품질고도화 (QbD)를 위한 실험계획법 (DoE) 실습교육
[9월 27일 수요일] 설계기반 품질고도화 (QbD)를 위한 실험계획법 (DoE) 실습교육
사전접수: ~2017.09.26
날짜: 2017.09.27
장소: 구로디지털단지 우림이비지센터2차 1406호 (2호선 구로디지털단지역 3번출구 도보 10분)
혁신적 진단 플랫폼 기술 개발 공모전
혁신적 진단 플랫폼 기술 개발 공모전
날짜: 2017.10.11
주관: (주)제우스
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