http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
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.
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.
The Hypernodulating nts Mutation Induces Jasmonate Synthetic Pathway in Soybean Leaves
서학수,Jinjie Li,이선영,Jae-Woong Yu,김길현,이석하,In-Jung Lee,백남천 한국분자세포생물학회 2007 Molecules and cells Vol.24 No.2
Symbiotic nitrogen fixation with nitrogen-fixing bacteriain the root nodules is a distinctly beneficial metabolicprocess in legume plants. Legumes control thenodule number and nodulation zone through a systemicnegative regulatory system between shoot androot. Mutation in the soybean NTS gene encodingGmNARK, a CLAVATA1-like serine/threonine receptor-like kinase, causes excessive nodule developmentcalled hypernodulation. To examine the effect of ntsmutation on the gene expression profile in the leaves,suppression subtractive hybridization was performedwith the trifoliate leaves of nts mutant ‘SS2-2’ and thewild-type (WT) parent ‘Sinpaldalkong2’, and 75 ESTclones that were highly expressed in the leaves of theSS2-2 mutant were identified. Interestingly, the expressionof jasmonate (JA)-responsive genes such asvspA, vspB, and Lox2 were upregulated, whereas thatof a salicylate-responsive gene PR1a was suppressed inthe SS2-2 mutant. In addition, the level of JA wasabout two-fold higher in the leaves of the SS2-2 mutantthan in those of the WT under natural growthconditions. Moreover, the JA-responsive gene expressionpersists in the leaves of SS2-2 mutant withoutrhizobia infection in the roots. Taken together, ourresults suggest that the nts mutation increases JA synthesisin mature leaves and consequently leads to constitutiveexpression of JA-responsive genes which isirrelevant to hypernodulation in the root.
세포질적 유전자적 웅성불임을 이용한 벼 일대잡종 육성연구 2 : 수도 IR36ms의 웅성불임 유전자 이전에 의한 한국 수도품종의 웅성불임 계통 육성
徐學洙 韓國作物學會 1986 한국작물학회지 Vol.31 No.1
단순열성 유전자에 의한 GMS민 IR36ms에 가야벼, 남풍벼, 신광벼 및 수원 296 등 4개 한국 수도품종을 각각 4회 연속 Bulk로 교잡시킨 BC3 F2 에서 웅성불임 개체를 얻어서 여기에 각 반복친을 1회 더 Backcross시킨 BC4 F2 세대에서 웅성불임 개체들을 선별하였다. 여기에 각 반복친을 교잡시켜 4품종의 Msms 유전자형을 얻고 이를 다시 BC4 F2 에서 선발한 웅성불임 개체(msms)에 교잡시키므로서 가야벼ms, 남풍벼ms, 신광벼ms 및 수원 296ms를 육성하였다. 이들 4개 웅성불임 계통들의 주당수수, 수당영화수, 출수기 및 수장은 모품종과 차이가 있었으나 웅성불임 계통들의 간장은 모품종에 비하여 단축되었다. 동일한 웅성불임 유전자를 가진 GMS 계통도 반복친에 따라 자연교잡 정도의 현저한 차이가 있었다. 가야벼ms는 11.5%, 남풍벼 ms는 13.1%, 신광벼ms는 1.9% 그리고 수원 296ms는 12.7%의 자연교잡율을 나타내었다. 화분친으로부터 15~90cm 거리 내에서는 가야벼 mS 및 남풍벼ms의 자연교잡율의 거리에 따른 차가 인정되지 않았다. The male sterility gene of IR36ms was transferred to four Korean rice cultivars Gayabyeo, Nampungbyeo Sinkwangbyeo and Suweon 296 by five times back crosses. From the BC4 F2 , the genetic male sterile rices having the backgrounds of the Krean cultivars, Gayabyeo ms, Nampungbyeo ms, Sinkwangbyeo ms and Suweon 296 ms were selected. No differences in number of panicles per hill, number of florets per panicle, heading date and length of panicle, were found between the male sterile lines and their parental cultivars in the four series of male sterile rices. The culm length of the male sterile lines was shorter than that of their parental cultivars in the four male sterile rice. Significant difference in out cross rate was found from the genetic male sterile rices having different back-grounds even though they have the same male sterility gene. The out cross rates of Gayabyeo ms, Nampungbyeo ms, Sinkwangbyeo ms and Suweon 296 ms were 11.5%, 13.1 %, 1.9% and 12.7% respectively. No difference in out cross rate was found on the genetic male sterile plants planted from I 5cm to 90cm from the pollinater.