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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.
박혜랑,산지브쿠마르둥가나,강범규,서정현,김준회,허수빈,이지윤,한원영,윤홍태,김춘송 한국작물학회 2023 한국작물학회지 Vol.68 No.4
Owing to adverse weather conditions, there is a heightened focus on actively researching the regulation of the sowing date in field crop cultivation. Soybean, a prominent field crop with extensive acreage and production, is a photophilic and thermophilic crop characterized by short-day photoperiodism. Identifying the optimal sowing time is crucial for mitigating the effects of severe weather conditions on soybean yield. Precise control over the timing of soybean sowing is the key to minimizing yield reduction due to unfavorable weather conditions. Temperature, photoperiod, and their interplay are the most significant factors influencing soybean cultivation among various weather factors. We conducted an experiment using three Korean soybean cultivars with varied maturities (Hwangkeumol: early maturing and Daewonkong and Pungsannamulkong: late maturing) in 2013 and 2014. Our investigation covered aspects of soybean growth, development, yield components, isoflavones, and visual seed quality. Across all three varieties, isoflavone levels increased with later sowing dates, while other measured components exhibited significant variations based on the sowing date. This study also provides valuable insights for the selection of suitable cultivars that perform well in soybean cultivation at various durations of maturity