본 품종들은 우리나라 남부지방에 적응한 양질유, 양질막 다수성 품종을 육성하기 위하여 Erra(female)와 Tower(male)를 인공교배하여 육성한 양질유, 양질박, 다수성 품종으로서 목포51호, 목포52호라는 계통명을 부여하여 지방 적응 연락 시험 및 농가 실증 시험을 거쳐서 장려 품종(내한유채, 영산유채)으로 결정된 품종이다. 특히 본 품종들은 한 조합 내에서 장수, 다분지, 다협, 다립 품종으로 수량 형질이 우수하며, 유질에서 지방산 조성이 극히 양호하며 불량 지방산은 전혀 함유치 않고 양질 지방산인 oleic acid과 linoleic acid이 80% 이상 함유된 양질유 품종이며, 박에서도 glucosinolate가 전혀 없는 무독박 품종이다. 또한 생산력은 전국평균 16~22% 증수된 다수성 성분 육종 품종들이다.

수안'은 숙기가 빠르고, 올레인산 함량도 높아 바이오디젤 및 식용으로 이용이 가능한 유채로 2006년에 목포-CGMS(웅성불임)과 8634-B-1-3-1-8(임성회복화분친)을 교배하여 2006년부터 2007년까지 생산력 검정시험과, 2008년부터 2009년까지 지역적응시험을 거쳐 육성된 품종이다. 지역적응시험에서 '수안'의 수량은 381 kg/10a로 같은 1대잡종인 '선망'에 비해 4% 증수되었다. '수안'의 기름함량은 44.3%이고, 지방산중 올레인

유채(Brassica napus L.) '내한', '탐미', '한라' 등 3품종의 종자에 양성자 및 감마선을 0~2,000 Gy로 처리하여 조숙, 단간, 다수성 등 농경상 유용형질을 갖고 기름함량과 지방산 중 올레인산 함량이 높은 바이오디젤용 품종을 육성하고자 본 연구를 실시하였다. M5세대까지 세대를 진전시키고 특성조사를 실시하여 고정성이 높고 농경형질이 우수한 조숙 단간 1 계통, 조숙 1계통, 단간 2계통과 대화 1계통, 엽록소변이 1계통을 선발하

‘조망’은 조숙, 다수성이며 바이오디젤 생산 및 식용으로 이용이 가능한 유채로 2006년에 웅성불임인 목포-CGMS와 임성회복환분친인 8634-B-1-3-1-8을 교배하여 생산력검정시험(2007, 2008)과, 지역적응시험(2008)을 거쳐, 2008년에 육성된 품종이다. ‘조망’의 엽형은 하부익상전렬, 엽색 및 줄기색은 녹색, 결각은 중간이며 꽃색은 황색, 종피색은 흑색이다. ‘조망’의 성숙일는 6월 3일로 ‘선망’보다 1일, ‘탐미유채’보다는 4일

There are many species as bioenergy crops and have different cold sensitivity in each. Cold-tolerant camelina and rapeseed, -sensitive jatropha, were used to investigate the cold stress response. Various physiological parameters such as leaf length, width, electrolyte leakage, stomatal conductance and chlorophyll fluorescence were measured to determine the growth rate treated with cold (2℃) for 5 days. Cold treated jatropha was damaged seriousiy but camelina and rapeseed were withstand. In order to investigate the cold-response on plasma membrane H+-ATPase activity isolated from leaves and roots of camelina, rapeseed and jatropha crops were exposed to cold stress. There were an increase in the activity of leaves and roots plasma membrane in cold-tolerant crops (camelina, rapeseed) while decreased the activity in cold-sensitive crop (jatropha). By western-blot analyses, the protein expression of plasma membrane H+-ATPase isolated from leaves and roots of camelina and rapeseed was increased in the presence of cold stress, but not in jatropha. These results may suggest that increased plasma membrane H+-ATPase of crops are closely related with cold-tolerant.

"보람"은 조숙, 다수성이며 바이오디젤 생산 및 식용으로 이용이 가능한 유채 로 2006년에 목포-CGMS(웅성불임)과 8634-B-1-3-1-8(임성회복화분친)을 교배하여 2007년부터 2008년까지 생산력 검정시험과, 2008년 지역적응시험을 거쳐 육성된 품종이다. "보람"의 엽형은 하부익상전렬, 엽색 및 줄기색은 녹색, 결각은 중간이며 꽃색은 황색, 종피색은 흑색이다. 개화기(4월 9일)와 성숙기(6월 4일)는 "선망"과 비슷하나 "탐미유채"보다는

답리작 유휴 농지에 바이오 디젤의 원료인 유채의 다수확 재배법을 구명코자 시험하였던바 그 결과를 요약하면 다음과 같다. 50×20 cm 조파는 종실수량이 298 kg/10a인데 비하여 50×15 cm 점파구에서는 1.000 kg/10a의 표준 퇴비 시용구가 361 kg/10a로서 21% 증수였고 1.500 kg/10a의 퇴비 50% 증비구에서는 422 kg/10a로서 42%가 증수였으며 50×30 cm의 이식구에서는 1.000 kg/10a의 표준 퇴비 시용구가 392 kg/10a로 32% 증수였고 1.500 kg/10a의 퇴비 50% 증비구에서는 455 kg/10a로서 53%가 증수되어 가장 수량이 높았으며 바이오디젤 원료인 수유량에서도 50×30 cm 이식, 50% 퇴비 증시구에서 200 kg/10a로서 56%가 증수되어 가장 수유량이 높았다.

Brassica napus L. (Brassicaceae), is one of major oilseed crops commonly cultivated cereal-growing areas after the rice harvest in Asia countries, has recently focused much attention as its seed is the primary source for bio-diesels. In rapeseed growing regions of South Korea, typical double-cropping regions are constantly or periodically received with poorly drained soil condition or encountered dried soil condition during the reproductive stage. This study was conducted on rapeseed plants subjected to both waterlogging and drought conditions for 4 days to investigate responses in physiological characteristics, fatty acid compositions and yield performances at reproductive stage. The treatments were thus as follows: (1) control normally irrigated, (2) waterlogging treatment were flooded by placing their pots inside larger plastic pots filled with tap water with a 2-cm water layer over soil surface, (3) drought treatment was not irrigated. For recovery period, rapeseed plants subjected to waterlogging for 4 days were drained after waterlogging, and irrigated daily as control. Drought treatment after recovery period was irrigated daily as control. Rate of photosynthesis and stomatal conductance of waterlogging and drought treated plants significantly decreased within 4 days. For recovery period, stomatal conductance and photosynthetic rate of the waterlogged and drought treated plants occurred level similar to that of the controls by 2 days after recovery period. Fatty acid compositions of the both waterlogging and drought treated plants did not affect, but yield performances of the waterlogging treatment significantly decreased. These results suggest that both waterlogging and drought conditions for 4 days did not influence fatty acid compositions, but affected yield performance at final harvest.

The pollen grain is a unique tricellular structure suitable for the delivery of the sperm cells to the ovule. All nutrients required for microspore and pollen cell growth are derived by passage through the anther locule and secretion by the tapetum lining. During later stages the tapetum degenerates but contributes to produce pigments, waxes, lipids and proteins which form the pollen coat and function in signaling between male (pollen) and female (pistil) tissues. The development of both normal pollen and tapetum is necessary for the fertilization processes in rice and would be exploited for the induction of male-sterility which is very useful to improve economic value of crops. We aredeveloping new approaches using a conditional male-sterility for the F1 hybrid seed production in rice. The conventional three parental systems for F1 hybrid seed production requirethe following three lines: male-sterile line, maintainer line, and restorer line. In this system, a critical requirement is to maintain the male-sterile inbred lines. Here we suggest molecular approaches, in which the engineered male-sterile plants are generated by regulating endogenous hormonal balance through the loss-of-function of genes. We can expect the male-sterility can be restored by exogenous applications of hormones such as gibberellin or jasmonic acid. Based on two parental systems, we will address the answer onfollowing question: how can we maintain a male-sterile line producing 100% male-sterile progenies without a maintainer? This work was supported by grants from Crop Functional Genomics Center of the 21C Frontier Program (CG1517), RepublicKorea.

The MYB transcription factors play important roles in the regulation of many secondary metabolites at the transcriptional level. We evaluated the possible roles of the Arabidopsis R2R3-MYB transcription factor genes in flavonoid biosynthesis as they are induced by UV-B irradiation but are largely unexplored in terms of their associated phenotypes. We found that one member of this gene family, AtMYB60, inhibits anthocyanin biosynthesis in the lettuce plant. Wild type lettuce normally accumulates anthocyanin, predominantly cyanidin and traces of delphinidin, and develops a red pigmentation. However, the accumulation of anthocyanin pigments in AtMYB60 overexpressing lettuce was inhibited. We further found a complete absence of DFR transcripts in AtMYB60 overexpressing lettuce, whereas other biosynthetic genes in the anthocyanin metabolism pathway were expressed. To provide genetic tools the regulation of seed color of rapeseed which has been target for fuel, AtMYB was overexpressed in rapeseed. Transgenic plants showed lighter seed color and improved tolerance to abiotic stress than the wild type plants. The elucidation of the roles of the AtMYB60 transcription factor will facilitate further studies and provide genetic tools to better understand the regulation in plants of the genes controlled by the MYB-type transcription factors.

High level of sequence similarity and genetic conservation within plants of same family allow us to use the informations and cDNA microarray obtained from a model plant such as Arabidopsis for better understanding of non-model plants within the same family, for example, rapeseed. Several lines of rapeseed plants with different sensitivity to cold stress were selected and the gene expression profiles under cold stress were examined using 1.6K specialized cDNA microarray. For the comparative analysis between Arabidopsis, economic plants and rapeseed, we adopted a recently developed computational method called "Gene Set Enrichment Analysis (GSEA)" which determines whether defined set of genes show statically significant and concordant differences between two biological states. Along this, five different gene sets including a network gene set based on a regulatory gene network model for early cold stress response and a co-expression gene set based on ∼ 1,500 expression data were built in this lab. With these gene sets and GSEA method, the expression data was analyzed to pinpoint the group of genes potentially responsible for the difference of stress sensitivity between two different plants. Since the plant encounters stress combinations concurrently or separated temporally and must present an integrated response to them, we built 'Cross-talk map' using ∼ 63 expression data of Arabidopsis under 9 different environmental stresses. Utilizing this cross-talk map, the significance of the identified group of genes was evaluated for their practical application to enhance stress tolerance. Currently, we identified several promising genes at a cross-talk point and are pursuing transgenic engineering to enhance the stress tolerance against more than two stress conditions.

To find out the best complex fertilizer for high yielding of rapeseed crop, experiment was conducted on complex fertilizers at the experiment field in upland of rapeseed in Mokpo Experiment Station, Nat'l Institute of Corp Science, RDA, Korea. Experiment was laid out in randomized complete block (RCBD) design. The effects of complex fertilizer (22-22-11) on the number of branches, pod length, percentage of seed set and seed yield were highest but on the plant height, ear length, and number of pods per ear were negligible. On th basis of the results reported above, for getting higher yield of rapeseed crop, among the tested fertilizers complex fertilizer (22-22-11) gave the superior performance and is recommended for application.