청원 소로리 구석기 유적지 출토 탄화벼의 RAPD 분석

서학수,조준현,이융조,허문회 한국작물학회 1999 한국작물학회 학술발표대회 논문집 Vol.1999 No.-

Roles of SUMO in Plants

서학수,박봉수 한국작물학회 2008 Journal of crop science and biotechnology Vol.11 No.1

The covalent conjugation of SUMO (Small Ubiquitin-related MOdifier) protein to its substrates regulates numerous cellular processes, including protein stability and activity in eukaryotes as well as in plants. In this present review, we summarize biochemical aspects of SUMO conjugation and deconjugation and the functions of SUMO and sumoylation-related proteins in Arabidopsis and other plants. In particular, we provide an overview of the roles of the SUMO in widely different biological processes including the ABA response, floral induction, pathogen defense, abiotic stresses and hormone signaling. Furthermore, we explore the possible roles of SUMO in embryo and seed development. The covalent conjugation of SUMO (Small Ubiquitin-related MOdifier) protein to its substrates regulates numerous cellular processes, including protein stability and activity in eukaryotes as well as in plants. In this present review, we summarize biochemical aspects of SUMO conjugation and deconjugation and the functions of SUMO and sumoylation-related proteins in Arabidopsis and other plants. In particular, we provide an overview of the roles of the SUMO in widely different biological processes including the ABA response, floral induction, pathogen defense, abiotic stresses and hormone signaling. Furthermore, we explore the possible roles of SUMO in embryo and seed development.

한국 재래적미 수집 및 특성 검정 3 : 한국 재래적미와 재배벼 및 외국적미와의 잡종친화성

서학수,조준현,허문회 한국육종학회 1992 한국육종학회지 Vol.24 No.4

세포질적 유전자적 웅성불임을 이용한 벼 일대잡종 육성연구 1 : 세포질적 유전자적 웅성불임계통 이용과 일대잡종 육성

徐學洙,李昌垠,許文會 韓國作物學會 1985 Korean journal of crop science Vol.30 No.4

우리나라 수도 품종을 배경으로 한 세포질적 유전적 웅성불임계통들에 우리나라 품종의 임성회복친을 교잡시킨 HR1619A/남풍벼, HR1619A/가야벼, HR1619A/계통234, 통일A/남풍벼, 통일A/청청벼, 수원296A/계통209, 수원296A/계통237, 수원296A/계통252 및 계통201A/계통234 등 9개 Hybrid를 육성하고 이들의 수량 및 수량 구성요소, 흰빛잎마름병 저항성 및 미질을 조사하여 다음과 같은 결과를 얻었다. 1 공시된 9개 Hybrid들 중 계통201A/계통234, 통일A/남풍벼 및 HR 1619A/남풍벼 등 3개 Hybrid의 수량성이 높았는데 각각 우수친에 비해 36%, 17% 및 10%의 증수(Heterobeltiosis)를, 표준품종인 청청벼에 비해 각각 19%, 17% 및 14%의 증수(Standard Heterosis)를 보였다. 2. 공시된 Hybrid중 HR1619A/가야벼와 수원296A/계통237의 수량은 양친보다 낮았다. 3. 수량구성요소 중 수당입수의 잡종강세가 현저하였고 주당수수, 천립중 및 임실율의 잡종강세는 인정되지 않았다. 4. Hybrid의 흰빛잎마름병 저항성은 양친 중 강한친과 같은 반응을 보였다. 5. Hybrid들의 Amylose 함량은 20.8%∼24.7%였고 딘백질함량은 9.3%∼10.0%, 알칼리 붕괴도는 3.7∼7.0으로서 각각 양친품종과 비슷하였다. Nine hybrid rices crossed between Korean cytoplasmic-genetic male sterile rices having the WA cytoplasm and the Korean restorer lines or varieties, HR1619A/Nampungbyeo, HR1619A/Gayabyeo, HR1619A/Line234, TongilA/Nampungbyeo, TongilA/Cheongcheongbyeo, Suwon 296A/Line 209, Suwon 296A/Line 237, Suwon 296A/Line 252 and Line 201A/Line 234, and their parents were grown at Yeungnam University in 1984. The rough rice yield of the hybrids Line 201A/Line 234, TongilA/Nampungbyeo and HR1619A/Nampungbyeo were 939, 927 and 900 Kg/10a respectively. The heterosis(F1 /Midparent) of the above three hybrids was 40%, 20% and 19%, the heterobeltiosis(F1 /Better parent) was 36%, 17% and 10%, and the standard heterosis (F1 /Standard variety, Cheongcheongbyeo) was 19%, 17% and 14% respectively. The hybrids HR1619A/ Gayabyeo and Suwon 296A/Line 237 showed negative heterosis in grain yield. Significant heterobeltiosis for grain number per panicle was found while less or no heterobeltiosis was observed in panicle number per hill, 1000-grain weight and grain fertility. The bacterial leaf blight disease reaction of the hybrids tested was almost the same as that of one parent at least. The amylose content of the hybrids was medium to low the same as their parents. The protein content and alkali digestion value of the hybrids were almost the same as their parents.

계통육종, 집단육종 및 단립계통육종법에 의해 육성된 벼 계통의 수량성 비교

서학수,최임수,송유천 한국육종학회 1991 한국육종학회지 Vol.23 No.2

유전자적 웅성불임과 약배양을 이용한 벼의 표지유전자 집적 (集積)

서학수,송유천 한국육종학회 1991 한국육종학회지 Vol.23 No.1

한국 재래 적미 수집 및 특성 검정 5 : 수심 및 토심에 따른 발아 특성

徐學洙,河雲龜 韓國作物學會 1993 Korean journal of crop science Vol.38 No.2

한국 재래 적미(앵미)는 다양한 유전적 변이와 작물학적 특성이 있을 것으로 추측되어 유전자측으로서의 유용성을 검정하고자 경상남북도에서 수집한 적미중 생웅적으로 특징있는 장입형 적미 10계통, 단입형 적미 10계통 등 20계통과 대조품종으로 삼강벼, 섬진벼를 공시하여 수확후 저장기한에 따른 휴면정도, 수중발아 및 토중발아 등 발아특성을 검정한 결과를 요약하면 다음과 같다. 1. 한국 재래 장. 단입형 적미는 수확직후 99%이상의 발아율을 보여 휴면성이 거의 없었다. 2. 장입형 적미는 수심 7cm에서 83.5%의 식물체의 묘 출현율을 보였고 단입형 적미는 수심 11cm에서 83.5%의 묘 출현율을 보여 실용상 지장이 없는 입묘율이 확보되었으나 대조품종인 삼강벼는 수심 7cm이상에서 섬진벼는 수심 11cm 이상에서 전혀 출현하지 못하였다. 3. 토심 7cm에서 장입형 적미는 71.7% 단입형 적미는 73.9%의 묘 출현율을 보였으며 대조품종인 삼강벼와 섬진벼는 각각 40.0%, 28.0%를 보였다. 4. 한국 재래 적미는 직파재배의 유용 유전자측으로 이용 가능성이 높은 것으로 평가 되었다. This experiment was carried out to evaluate the germination characteristics of Korean red rice seeds. Ten lines of the long grain and ten lines of the short grain Korean red rices were tested for dormancy, shoot emergence rate at different water and soil depth. Both the long and short grain type seeds of Korean red rice germinated over than 99% immediately after harvest, so that no dormancy was observed in the Korean red rices. Shoot emergence rate of the long grain red rices at 7cm of water depth and that of the short grain red rices at 11cm were 83.3% and 83.5% respectively, while those of the indica check Samgangbyeo and japonica check Seomjinbyeo were 0%. Shoot emergence rates of the long and short grain red rices at 7cm of soil depth were 71.1% and 73.9% respectively, while those of the check varieties Samgangbyeo and Seomjinbyeo were 40.0% and 28.0% respectively. Thus, the Korean red rices were expected to be useful germplasm source for direct seeding.

한국 재래 적미 수집 및 특성 검정 1 : 지리적 분포와 종실특성

徐學洙,朴淳直,許文會 韓國作物學會 1992 Korean journal of crop science Vol.37 No.5

우리나라 농가 포장에 현재까지 잔존하는 적미를 수집하여 이를 유전자원으로 활용할 수 있는 가능성을 검토하고자 제주도와 도서지방을 제외한 전국 8개 도 101개 시, 군에서 1,113계통의 적미를 수집하여 이들을 입형에 따라 분류하고 지리적 분포화 몇가지 종실특성을 검정한 결과를 요약하면 다음과 같다. 1. 수집된 적미는 외관상 Indica에 가까운 장립형과 Japonica에 가까운 단립형으로 구분되었는데 장립형의 정조 장폭화는 3.01± 0.11,, 단립형의 정조 장폭화는 2.28± 0.12였다. 2. 장립형 적미는 경상남북도의 낙동강유역과 전라남북도의 섬진강유역에 주로 분포하였고 단립형 적미는 전국에 분포하였다. 3. 장립형과 단립형 적미는 종피색은 적색이 각각 90.8%, 88.8%로서 대부분이었으나 장립형에는 백색이 9.2%, 단립형에서는 갈색과 백색이 각각 10.6%, 0.6% 있었다. 4. 장립형 적미는 9.3%와 단립형 적미의 30.8%는 phenol반응을 나타내었다. 5. 장립형에는 찰성이 없었으나 단립형 적미에는 4.3%가 찰성이었다. 6. 장립형 적미는 거의 까락이 없었으나 단립형 적미의 49.6%는 까락이 있었다. 7. 장립형 적미는 모두 탈립이 쉬웠으나 단립형 적미의 14.8%는 탈립이 정상적이었다. This experiment was carried out to collect the Korean red rices and to evaluate them as useful germplasm, 1,113 lines of weedy red rices were collected from farmer's field of the Korean peninsula from 1988 to 1991. The collected red rices were classified into two groups : One was long grain type with length /width ratio of 3.01~pm 0.11 in paddy rice and the other was short grain type with length /width ratio of 2.28~pm 0.12. Among the collected red rices 289 lines were long grain type and 824 lines were short. The red rices of long grain type were distributed in Nagdong and Seomjin river vallies of the southern part of the Korean peninsula, and the short ones were distributed all around of the peninsula. Among the collected long grain type red rices, 90.8% was red and 9.2% was white, and among the short grain type 88.8% was red, 10.6% was brown and 0.6% was white in pericarp color. 9.3% of the long grain type and 30.7% of the short grain type of the Korean red rices reacted to phenol solution. In the short grain type, 4.3% was waxy grained, but no waxy line was found in the long grain type. All the long grained Korean red rice showed easy shattering and no awn, however in the short grained red rices, 85.2% showed easy shattering and 49.6% was awned.

우리나라 品種背景의 早生群 一代雜種 벼育成 및 特性檢證

徐學洙,宋裕千 영남대학교 자원문제연구소 1992 資源問題硏究 Vol.11 No.-

In order to breed early maturing hybrid rices with backgrounds of Korean cultivars, the cyteplasmic male sterile lines Sobaegbyeo A, Daeseongbyeo A and Geumobyeo A, and the restorer lines Chugwangbyeo R, Line2571 R and Line2584 R were bred by backcross system. The source of cytoplasmic male sterility were from BT-cms. and that of the restorers were from the Chinese cultivar AR-3. The F1 hybrids Sobaegbyeo A/Line2571 R, Daeseongbyeo A/Line2571 R, Daeseongbyeo A/chugwangbyeo R, Geumobyeo A/Line2548 R and Geumobyeo A/chugwangbyeo R were obtained from artificial crosses. The hybrids and their parents were grown in field, and heterosis of yield and yield components were tested. The days to heading of the F1 hybrids were 4 days later than the variety Sobaegbyeo and 6 days earlier than Gwanagbyeo. Significant heterosis for number of grain per panicle and 1000 grains weight were observed, while less or no heterosis for number of panicles per hill and fertility were observed in the F1 hybrids tested. Yield of the F1 hybrids showed 8.8 to 60.2% heterosis over mid parent, 1.8 to 55.1% heterobeltiosis over better parent, and 1.8 to 46.4% standard heterosis over the standard variety Geumobyeo. Among the F1 hybrids tested the combination Sobaegbyeo A/Line2571 R showed the highest heterosis for grain yield.

한국 재래적미 (앵미) 수집 및 특성검정 III. 재배도와의 교잡친화성 및 동의효소분석에 의한 유연관계 구명

서학수,조준현,은무영 한국작물학회 1991 한국작물학회 학술발표대회 논문집 Vol.1991 No.-