Nghiên cứu đa dạng di truyền và mối liên kết giữa kiểu gen rga với tính kháng bệnh đạo ôn ở lúa

• Tác giả: Tuấn Nghĩa Lã
• Ngôn ngữ: vie
• Ký hiệu phân loại: 635 Garden crops (Horticulture) Vegetables
• Thông tin xuất bản: Tạp chí nông nghiệp và phát triển nông thôn, 2012
• Mô tả vật lý: 10-15
• Bộ sưu tập: Metadata
• ID: 480885

Tóm tắt

Two collections of rice gerplasm comprising traditional and modem varieties were subjected to DNA fingerprinting using the RGA markers (primers corresponding to LRR and NBS motifs). Twenty rice varieties comprising 16 traditional and 4 modem varieties showed variation in DNA patterns among plants within a variety. The DNA fingerprinting pattern of most of the varieties within a collection had high similarity (approximately 90 percent). Varieties in the same collection clustered together. The DNA fingerprinting data together with disease reaction to blast races were sused to determine whether the groupings formed by RGA markers are related to patterns of disease reaction. Varieties with similar disease reactions clustered together based on DNA pattern, suggesting the utility of RGA markers in inferring functional groups in germ plasm against diseases.