인문학
사회과학
자연과학
공학
의약학
농수해양학
예술체육학
복합학
지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
초록·키워드
Somatic embryogenesis (SE) in plants requires the prior formation of embryogenic cells in plants. The remodeling of the cell wall in mature somatic cells is a prerequisite for embryogenic cell formation. However, the mechanism of this process remains unelucidated. In this study, eTM3699, miR3699, and <i>MANNAN7</i> (<i>MAN7</i>) were identified as key regulators of embryogenic cell formation through whole-transcriptome sequencing. The dual-luciferase reporter assays and GUS histochemical staining assays, were used to identified the regulatory network of eTM3699-miR3699-<i>MdMAN7</i>. The overexpression and CRISPR/Cas9-mediated transgenic assays were used for functional analysis of miR3699 and <i>MdMAN7</i>. <i>MdMAN7</i> overexpression can enhance the activity of β-mannanase, induce hemicellulose degradation, reshape the cell wall of highly differentiated somatic cells, and relieve the restriction on cell differentiation and division, ultimately positively regulating the embryogenic cell formation. Specifically, the overexpression of <i>MdMAN7</i> can significantly improve the efficiency and shorten the induction cycle of SE. miR3699 acted by negatively regulating <i>MdMAN7.</i> In addition, eTM3699 were identified as endogenous target mimics of miR3699 that bind to miR3699 to prevent cleavage of <i>MdMAN7</i> and thereby positively regulate embryogenic cell formation. In conclusion, our results elucidate the mechanism of eTM-miR3699-<i>MAN7</i> module regulating embryogenic cell formation during the early stage of SE in apple.
인공지능 문자 인식 모델을 통해 추출된 텍스트로, 일부 오타나 오류가 포함될 수 있으나 지속적으로 개선 중입니다.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.
오류를 발견하셨다면 해당 부분을 드래그한 후 ' 를 통해 신고해주세요.