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대메뉴안내: 농수식품
농림성과 수산성과 식품성과 인터뷰
정순천
정순천 (Soon-Chun Jeong) 저자 이메일 보기
한국생명공학연구원
 
조회 553  인쇄하기 주소복사 트위터 공유 페이스북 공유 
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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Google scholar (by Soon-Chun Jeong)
Pubmed (by Soon-Chun Jeong)
프리미엄 Bio일정 Bio일정 프리미엄 안내
2018년 부산대학교 의학전문대학원 의과학과 Open Lab
2018년 부산대학교 의학전문대학원 의과학과 Open Lab
사전접수: ~2018.08.20
날짜: 2018.08.28
장소: 부산대학교 의학전문대학원(양산) 통합행정동 116호
[사전등록안내] 강북삼성병원 개원 50주년 기념 국제심포지엄
[사전등록안내] 강북삼성병원 개원 50주년 기념 국제심포지엄
날짜: 2018.07.20
장소: 중앙일보빌딩 호암아트홀 (서울시 중구 서소문로 100)
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