Journal of Integrative Plant Biology, 47 (12) : 1485-1492, Dec 2005     Research Article

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DNA Polymorphism Among Yewei B, V20B, and Oryza minuta J. S. Presl. ex C. B. Presl.[OA]

Bing-Ran ZHAO, Quan-Hua XING, Hong-Ai XIA, He-Hua YANG, De-Min JIN, Xia LIU, Song-Wen WANG, Bin WANG and Long-Ping YUAN

Abstract

The new cytoplasmic male sterile (CMS) line Yewei A and its maintainer line Yewei B, with better agronomic characteristics, have been developed from a mutant of V20B (a rice maintainer line) through transformation of genomic DNA of wild rice (Oryza minuta J. S. Presl. ex C. B. Presl.). Analysis of molecular markers, DNA sequences, and Southern blot revealed that high DNA polymorphism exists between the mutant and its receptor, indicating that the special DNA fragment from O. minuta may be integrated into the genome of Yewei B. Therefore, transformation of genomic DNA from distant relatives to the plant of a target receptor may open an avenue for creating a new rice germplasm.
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