RISS 학술연구정보서비스

검색
다국어 입력

http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.

변환된 중국어를 복사하여 사용하시면 됩니다.

예시)
  • 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
  • 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
닫기
    인기검색어 순위 펼치기

    RISS 인기검색어

      검색결과 좁혀 보기

      선택해제

      오늘 본 자료

      • 오늘 본 자료가 없습니다.
      더보기
      • 무료
      • 기관 내 무료
      • 유료
      • KCI등재

        Establishment of an Agrobacterium-mediated genetic transformation and CRISPR/Cas9-mediated mutagenesis of haploid inducer genes in Pak-choi plants (Brassica rapa ssp. chinensis)

        김영천,Thu May Phyo,Rahman Falguni Maliha,윤영재,Jang Jin Hoon,이옥란,이정환 한국식물생명공학회 2024 Plant biotechnology reports Vol.18 No.2

        Pak-choi (Brassica rapa ssp. chinensis) is a popular vegetative crop in southern China, East Asia, and Southeast Asia. Owing to the threat of climate change, rapid breeding strategies for vegetable cultivars that are tolerant to abiotic and biotic stresses are required. Thus, the rapid fixation of useful agronomic traits using doubled haploid technology is urgent. The haploid- inducer gene is key to doubled haploidization. Two known CENH3 and pPLAIIγ genes, in which altered or partially deleted forms lead to haploid induction, were selected, and direct editing of Pak-choi CENH3 and pPLAIIγ genes (BcCENH3 and BcpPLAIIγ) was conducted using an Agrobacterium-mediated CRISPR/Cas9 system. First, BcCENH3 and BcpPLAIIγ genes were characterized by analyzing the spatial expression patterns and subcellular localization. The CENH3 expression levels in carpels and pPLAIIγ in various parts of Pak-choi flowers were higher than those of other parts. BcCENH3 and BcpPLAIIγ proteins targeted in the nucleus and plasma membrane, respectively. Whole plants were successfully regenerated from the shoot apical meristem (SAM) regions of Pak-choi seedlings using the optimized procedure and culture conditions. The regeneration results of SAM explants after Agrobacterium-mediated transformation of constructs expressing CRISPR/Cas9 and BcCENH3 or BcpPLAIIγ sgRNAs confirmed four independent BcCENH3-targeted transgenic lines with 2.1%, 1.8%, 1.8%, and 1.7% INDEL frequencies, and three independent BcpPLAIIγ-targeted transgenic lines with 24.5%, 33.7%, and 33.0% INDEL frequencies. Thus, our results suggested the possibility of developing transgenic Pak-choi lines by applying the CRISPR/Cas9 genome editing technology to BcCENH3 and BcpPLAIIγ as two haploid-inducer genes.

      연관 검색어 추천

      이 검색어로 많이 본 자료

      활용도 높은 자료

      해외이동버튼