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맥류 바이러스병 발생 현황 및 BaYMV-Ik와 BnMMV에 대한 저항성 유전자의 반응
박종철,서재환,김양길,김정곤,Park Jong-Chul,Seo Jae-Hwan,Kim Yang-Kil,Kim Jung-Gon 한국작물학회 2005 Korean journal of crop science Vol.50 No.3
월동 후 맥류 재배지에서 나타나는 이상 증상으로는 주로 잎에 황화등의 변색과 모자이크성 반점 등이 조사되었다. 이들 증상을 가진 잎의 바이러스 검정 결과 $78\%$이상에서 바이러스 감염이 확인되었으며, 주로 BaYMV와 BaMMV에 의해 발생하였다. 전국일원의 맥류 재배지에서 4개년간 BaYMV, BaMMV SBWMV와 BYDV-MAV(2003년) 등 4종의 바이러스의 발생율을 조사한 결과 대상 바이러스 중 BaYMV가 가장 높은 감염율을 나타내었다. BaYMV는 조사 4개년 동안 평균 발생율이 $70\%$이상으로 전국적으로 큰 차이 없이 가장 높은 발생율을 보였다. 그러나 경기지역의 경우는 $20\%$정도로 다른 지역의 $65\~85\%$에 비해 낮은 발생율을 보였다. BaMMV는 전북, 전남, 경기, 강원, 경남지역에서 $20\~40\%$를 보인 반면, 경북, 충남, 경기지역에서는 발생이 적었다. SBWMV와 BYDV-MAV는 현재까지 국내 보리 재배지에서 다발생되고 있지는 않았다. 저항성 유전자원에 대해 바이러스에 대한 저항성 반응을 검정한 결과 BaYMV와 BaMMV가 단독 또는 복합 감염되는 형태로 나타났으며, SBWMV는 감염이 확인되지 않았다. 저항성 유전자별 반응을 검정한 결과에서 익산 발생하고 있는 BaYMV-Ik strain과 BaMMV에 대해 모두 저항성인 유전자는 확인되지 않았으나 국내 맥류 재배지에서 가장 발생이 많은 BaYMY-lk체 대해 저항성 반응을 보인 유전자는 Ishukushirazu, Chosen에 들어있는 rym 3, Tokushima Mochi Hadaka의 rym 4y 및 Hakei I-41의 rym 5a로 나타났다. 그러나 BaYMY-lk에 대해 저항성으로 확인된 rym 3, rym 4y 및 rym 5a의 경우 BaMMV에는 모두 감염이 확인되었으며, rym 1+5 두개의 저항성 유전자를 가지고 있으며 일본의 모든 BaYMV strain에 저항성인 Mokusekko 3도 감염이 확인되었다. 유전자에 따른 병징 발생 양상을 조사한 결과 일반적인 바이러스 병징과 같이 대부분 모자이크나 황화가 발생하였다. 그러나 저항성 유전자에 따라 고사, 괴사 반점, 조직 괴사, 줄무늬성 증상과 잎 말림등의 다양한 증상이 확인되었다. The major symptom such as yellowish and mosaic spots in overwintering barley were mostly caused by viruses such as Barley yellow mosaic virus (BaYMV) and Barley mild mosaic virus (BaMMV) in the nation-wide for four years. The result showed that more than $78\%$ collected samples were infected by the viruses. The incidence of Ba YMV was more than $70\%$, and relatively uniformly distributed in the southern regions of barley fields in Korea. However the incidence of BaYMV in Gyeonggi Province was as low as $19\%$ compared to $65\~85\%$ in the rest of regions. Occurrence of BaMMV varied depending on investigated regions such as $20\~40\%$ in Jeonbuk, Jeonnam, Gangwon and Gyeongnam, and a lower infection in Gyeongbuk, Chungnam and Gyeonggi Provinces. In this result, $60\%$ of BaMMV was found to be in the southwest regions of Korea such as Jeonbuk and Jeonnam Provinces. Over all, both BaYMV and BaMMV were thought to be dominantly casual agents in overwintering barley by either solely or mixed infections. Soil-borne wheat mosaic virus(SBWMV) occurred at most $14\%$ in Gyeonggi and Barley yellow dwarf virus-MAY (BYDVMAV) was found only one place in Jeonbuk, suggesting that SBWMV and BYDV-MAV were not significant diseases in Korea. Exotic genetic resources that possess different resistant genes to BaYMV and BaMMV were tested to identify the responses to the viruses occurred in Iksan. According to the ELISA results, BaYMV and BaMMV were infected in some plant materials but SBWMV was not identified. Any resistant gene was not effective to BaYMV-Ik (Insan strain) and BaMMY. Ishukushirazu (rym 3) and Chosen (rym 3), Tokushima Mochi Hadaka (rym 4y) and Hakei 1-41 (rym 5a) showed resistant response with little symptoms to BaYMY. The other five accessions possessing rym 1+5, rym 2, rym 4m, rym 5 and rym 9, respectively, were resistant to BaMMV. Various symptoms were observed in the tested plant materials such as not only yellowish and mosaic symptoms mostly but also necrotic spot, tissue necrosis, leaf stripe and leaf curling. However, it was difficult to find any relationship between resistant genes and specific symptoms.
박태일,정선옥,김영진,김현순,서재환,박기훈,김정곤,윤성중,Park, Tae-Il,Jeoung, Sun-Ok,Kim, Young-Jin,Kim, Hyun-Soon,Seo, Jae-Hwan,Park, Ki-Hun,Kim, Jung-Gon,Yun, Song-Joong 한국식물생명공학회 2007 식물생명공학회지 Vol.34 No.3
Barley anther culture is hard working to plating picking out anther from the glume and demand long time comparing to be short available development stage for effective culture. Also, it has been treatment massive materials due to low plantlet comparing to get desirable plants intensively. Consequently, this experiment was carried out trying to be more high barley anther culture effectively in terms of save plating effort. Plating materials and culture temperature affected anther culture efficiency are among the inoculation tissues or organs such as anthers, spikelets and whole panicles, culture efficiency was higher with spikelets in two-rowed than six-rowed barley due primarily to a lower contamination, and calli were induced within 30 to 50 days. Callus induction and plant regeneration rates were higher in cultures at $25^{\circ}C$ than at $15^{\circ}C$ and $20^{\circ}C$. Days to callus induction were 25 to 50 days at $25^{\circ}C$ and 50 to 60 days at $20^{\circ}C$.
김경훈(Kyeong-Hoon Kim),서재환(Jae-Hwan Seo),박태일(Tae-Il Park),한옥규(Ouk-Kyu Han),박기훈(Ki-Hun Park),송태화(Tae-Hwa Song),박종철(Jong-Chul Park),박철수(Chul-Soo Park),강천식(Chon-Sik Kang),박형호(Hyoung-Ho Park),박남건(Nam-Gun Pa 한국육종학회 2015 한국육종학회지 Vol.47 No.3
“Cheongwoo”, a white winter wheat (Triticum aestivum L.) cultivar was developed by the National Institute of Crop Science, RDA. It was derived from the cross“Kanto75/8/Tapdong/4/Bb#1/Jangkwang//STRAMCHO/3/Suwon220/5/Suwon185/ CI12703//Kanto75///Suwon219/7/F1277” and “Keumkang” in 1998 at RDA. “Keumkang” is a semi-hard white winter wheat with high yield. And mother plant is a winter wheat with long culm length, high yield. “Cheongwoo” was evaluated as “Iksan326” in Advanced Yield Trial Test in 2007. It was tested in the regional yield trial test between 2008 and 2009. “Cheongwoo” is first whole crop wheat with long culm length, high-yield. The Heading date of “Cheongwoo” was similar to “Keumkang”. The average forage yield of “Cheongwoo” was about 14.8 ton ha-1 in dry matter in paddy field. This dry matter was higher than dry matter of “Keumkang” (13.2 ton ha-1). The cultivar had 97 cm of culm length, 1,070 spikes per m2 and it showed better rate of culm. Culm length of “Cheongwoo” were longer than “Keumkang”. This cultivar would be suitable for the area above the daily minimum temperature of -10°C in January in Korean peninsula. Our research will improve good-quality of silage by using winter cereal crops.