Nội dung được dịch bởi AI, chỉ mang tính chất tham khảo
SDG711 Tham Gia vào Sự Phát Triển Hạt Lúa Thông Qua Việc Điều Chỉnh Biểu Hiện Gen Trao Đổi Tinh Bột Kết Hợp với Các Biến Đổi Histone Khác
Tóm tắt
SDG711 là một transmethylase của histone H3K27me2/3 ở cây lúa, đồng đẳng với CLF ở Arabidopsis, và đóng vai trò quan trọng trong việc điều chỉnh thời gian ra hoa và phát triển cụm hoa. Trong nghiên cứu này, chúng tôi đã điều tra vai trò của SDG711 trong sự phát triển của hạt lúa. Việc thúc đẩy biểu hiện quá mức và giảm biểu hiện SDG711 dẫn đến sự giảm và tăng mức độ biểu hiện của các gen liên quan đến tích trữ tinh bột, dẫn đến việc hạt nhỏ hơn hoặc thậm chí bị hỏng. Phân tích ChIP cho thấy rằng H3K27me3 được trung gian bởi SDG711 thay đổi đáng kể trong các gen liên quan đến sự phát triển nội nhũ, và SDG711 có thể gắn trực tiếp vào vùng cơ thể gen của một số gen tổng hợp tinh bột và gen amylase. Thêm vào đó, các biến đổi H3K4me3 và H3K9ac cũng phối hợp với H3K27me3 để điều chỉnh sự phát triển của nội nhũ. Kết quả của chúng tôi cho thấy rằng sự giao thoa giữa H3K27me3 do SDG711 trung gian, H3K4me3, và H3K9ac tham gia vào việc tích trữ tinh bột để kiểm soát sự phát triển bình thường của hạt.
Từ khóa
#SDG711 #lúa #phát triển hạt #trao đổi tinh bột #biến đổi histoneTài liệu tham khảo
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