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RNA 시퀀싱과 QTL 분석을 통한 콩 내습성 관련 후보유전자 탐색
산지브쿠마르둥가나(Sanjeev Kumar Dhungana),서정현(Jeong-Hyun Seo),박지희(Ji-Hee Park),성정숙(Jung-Sook Sung),김홍식(Hong-Sik Kim),강범규(Beom-Kyu Kang),신상욱(Sang-Ouk Shin),백인열(In-Youl Baek),정찬식(Chan-Sik Jung) 한국육종학회 2021 한국육종학회지 Vol.53 No.2
Flooding stress causes a significant reduction in soybean yield. The development of flood-tolerant cultivars is an effective wayto minimize yield loss due to flooding. Information on candidate genes for flooding tolerance is useful for developing tolerant lines. Theobjective of this study was to identify potential candidate genes for flooding tolerance in soybean by integrating the results of a quantitativetrait locus analysis and RNA sequencing. A total of 19 genes showed good amplification in capillary electrophoresis and were further analyzedthrough a reverse transcription quantitative polymerase chain reaction (qRT-PCR); two of these genes showed differential expression amongtolerant and susceptible lines. The expression of Glyma.12g030900 and Glyma.10g050300 in leaf and root tissues, respectively, was higherin several tolerant lines than in the susceptible lines under flooding stress. The chlorophyll index of the tolerant lines was also consistentlyhigher than that of the susceptible lines over two years, supporting the qRT-PCR results. This study provides useful information on floodingtolerance in soybeans.
들깨 종간 교잡(Perilla citriodora × P. hirtella) 집단의 양적 형질 유전자좌 분석
이명희(Myoung Hee Lee),오기원(Ki Won Oh),김명식(Myung Sik Kim),김성업(Sung Up Kim),김정인(Jung In Kim),오은영(Eun Young Oh),배석복(Suk Bok Pae),여운상(Un Sang Yeo),김태호(Tae Ho Kim),이정희(Jeong Hee Lee),정찬식(Chan Sik Jung),곽도연(Do 한국육종학회 2018 한국육종학회지 Vol.50 No.1
레몬들깨(P. citriodora)와 범꼬리소엽(P. hirtella) 등 2종의 2배체 야생 들깨 종간 교잡을 통해 들깨 유전체 사업의 연관 유전지도 작성에 필요한 집단을 육성하였다. 두 종의 염색체 수는 n=10으로 같고 종간 교잡 후대는 세대를 거치는 동안 정상적인 생육과 결실을 보였다. F2 집단의 표현형은 정규분포를 보여 종간 교잡 식물체의 감수분열 과정에서 두 종의 염색체가 친화성이 높은 것으로 보였다. F2 집단으로부터 수확한 종자에서 Rosmarinic acid, Luteolin, Apigenin등 3종의 성분을 분석한 결과 4배체 재배종 들깨의 함량과 유사한 범위에 분포하였고 Apigenin과 Luteolin 간에 0.762의 높은 정의 상관이 있었다. 주요 농업형질 및 기능성분 분석 결과 21개의 QTL을 찾았다. Apigenin과 Luteolin 간에 높은 정상관이 있었으나 QTL 영역은 다르게 조사되었다. 엽색(LC)의 QTL은 3번 염색체에 하나만 존재하였는데 LOD가 14.3으으로 매우 높고 표현형 변이에 대한 QTL의 설명 비율이 50.4%로 높은 부분 우성 형질이었다. 또한 이 QTL 주변 영역에는 안토시아닌 생합성 조절인자로 알려진 basic helix-loop-helix(bHLH) DNA-binding superfamily protein, myb domain protein 43, Transducin/WD40 repeat-like superfamily protein이 확인되었다. An interspecific cross between P. citriodora and P. hirtella constitutes ideal material for a linkage map construction in genome project of Perilla. The chromosomes of the species are same with n=10 and progenies of the cross are normal in growth and seed set. The phenotype of F2 population of the cross are normally distributed and this is a proof of high affinity of the chromosomes during their sexual reproduction. Rosmarinic acid, Luteolin and Apigenin contents of F2 plants were distributed in similar range with tetraploid perilla cultivars. Luteolin and Apigenin are positively correlated with correlation coefficient of 0.762. 21 QTLs were detected in agronomic traits and Rosmarinic acid, Luteolin and Apigenin contents. Even though Luteolin and Apigenin are positively correlated, QTLs were located in different position. Purple leaf color related QTL was mapped in Chromosome 3 with LOD of 14.3, PVE of 50.4%. Three anthocyanin biosynthesis transcription factor like sequences, WD40 repeat-like superfamily protein, myb domain protein 43 and basic helix-loop-helix (bHLH) DNA-binding superfamily protein, were detected near from the QTL.
신상욱 ( Sang Ouk Shin ),김현태 ( Hyun Tae Kim ),이영훈 ( Young Hoon Lee ),정찬식 ( Chan Sik Jeong ),이병원 ( Byong Won Lee ),고병구 ( Byong Gu Ko ),백인열 ( In Youl Baek ),박금룡 ( Keum Yong Park ) 한국국제농업개발학회 2010 韓國國際農業開發學會誌 Vol.22 No.4
콩의 비닐피복 재배시에 최적적심 방법을 구명하고자 본 시험에서 적심방법별 주요 특성 및 수량 비교한 결과는 다음과 같다. 1. R5 stage의 건물중은 두 품종 모두에서 V8 stage의 순적심과 개화시 적심에서 많았는데 이들 처리는 대원콩에서는 무처리 보다 가벼웠고 신부석태에서는 무처리 보다 무거웠다. 그리고 이들 처리는 최적엽면적 지수을 확보하였다. 2. 포장도복은 V8 stage의 순적심에서는 발생하지 않았고 개화시 적심에서는 2~5 정도의 도복이 발생하였다. 3. 개화기는 품종별 처리간 모두 같았고, 성숙기는 대원콩에서 1~2일의 차이를 보였지만 신부석태는 차이가 없었다 4. 종실비대기간인 R5 stage에서 R7 stage까지의 두 품종 평균 순동화량(NAR)은 V8 stage의 순적심과 개화시 적심에서 비슷하면서 가장 높았다. 5. 두 품종 평균수량은 V8 stage의 순적심과 개화시 적심에서 가장 높았다. 6. 외관적 품질에서는 V8 stage의 순적심에서 백립중이 가장 무거웠고 미숙립 및 다른 피해립율도 낮았다. This experiment was carried out to make clear optimum decapitation method for yield increase of soybean and to reduce lodging as soybean is cultivated in vinyl mulching. Results are as follow; In R5 stage, dry matter weight in two varieties was higher in V8 (terminal) treatment and flowering initiation stage treatment which were lighter than control in Daewon and heavier in Sinbuseoktae. Also, LAI(Leaf Area Index) in these two treatments was suitable. Lodging index in V8 (terminal) treatment was not occurred whereas in flowering initiation stage treatment was ranged from 2 to 5. Flowering date in two varieties was not differant among five treatments and maturity date was similar. NAR (Net Assimilation Rate) from R5 to R7 stage was higher in both V8 (terminal) and flowering initiation stage treatment showing similar mean value. Although mean values was not significantly different, the yield of terminal decapitation in V8 stage which was similar to flowering initiation stage treatment was higher. Also, 100-seed weight of terminal decapitation in V8 stage was the heaviest and apparent seed quality was favorable. Consequently, the optimum decapitation method in vinyl mulching cultivation of soybean was terminal decapitation in V8 stage.