교배육종 및 소포자 배양에 의한 뿌리혹병 race4 저항성 배추 계통 육성 (Development of clubroot race4 resistant inbreds using conventional breeding and microspore culture method in Chinese cabbage)

서지정보

· 발행기관 : 충남대학교 농업과학연구소
· 수록지 정보 : Korean Journal of Agricultural Science / 38권 / 4호 / 613 ~ 618페이지
· 저자명 : 박수형, 임용표, 윤무경

초록

To develop clubroot resistant Chinese cabbage inbreds, IT 033820, a clubroot resistant turnip, was cross pollinated with a Chinese cabbage inbred of BP 079. From 2005, conventional breeding and microspore culture method performed using these F1 plants as parental materials. In 2007, conventional breeding method resulted in 21 F3 inbreds.
After inoculation of clubroot race 4, one inbred showing 83% resistant was selected and registered as ‘Wonkyo 20036ho’in 2008. From 2005, we scanned hybrid cultivars using micro spore culture and developed many doubled haploid (DH)lines in Chinese cabbage. Using Chinese cultivar of ‘Zoong-baek 2ho’, we developed 26 DH inbreds in 2007. After inoculation of clubroot race 4, one DH inbred showing 77% resistant and yellow inner leaf color was selected and registered as ‘Wonkyo 20034’ in 2008. We found conventional breeding method was effective using introduced germplasm showing low germination. However, when using hybrid cultivar as starting material, microspore culture method was powerful for developing various inbred in short time.

영어초록

To develop clubroot resistant Chinese cabbage inbreds, IT 033820, a clubroot resistant turnip, was cross pollinated with a Chinese cabbage inbred of BP 079. From 2005, conventional breeding and microspore culture method performed using these F1 plants as parental materials. In 2007, conventional breeding method resulted in 21 F3 inbreds.
After inoculation of clubroot race 4, one inbred showing 83% resistant was selected and registered as ‘Wonkyo 20036ho’in 2008. From 2005, we scanned hybrid cultivars using micro spore culture and developed many doubled haploid (DH)lines in Chinese cabbage. Using Chinese cultivar of ‘Zoong-baek 2ho’, we developed 26 DH inbreds in 2007. After inoculation of clubroot race 4, one DH inbred showing 77% resistant and yellow inner leaf color was selected and registered as ‘Wonkyo 20034’ in 2008. We found conventional breeding method was effective using introduced germplasm showing low germination. However, when using hybrid cultivar as starting material, microspore culture method was powerful for developing various inbred in short time.

참고자료

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