RAG-BASED SELECTION METHODS FOR IMPROVING APHID RESISTANCE IN SOYBEANS

摘要

This invention relates to methods of improving resistance to aphids in soybean plants, as well as methods for identifying and/or selecting soybean plants or germplasm that display improved resistance to one or more biotypes of soybean aphid. In certain examples, the method comprises selecting a first and second soybean plant or germplasm, each of which has a different favorable Rag1, Rag2, or Rag3, allele, haplotype, or marker profile, and crossing those first and second soybean plants to produce a progeny plant with improved soybean aphid resistance. This invention further relates to markers, primers, probes, kits, systems, etc., useful for carrying out the methods described herein.

主权项

1. A method of improving resistance to one or more soybean aphid biotypes in a soybean plant, line, or strain, the improved resistance comprising one or more of improved antibiosis resistance and improved antixenosis resistance; the method comprising:
a) selecting a first soybean plant or germplasm, or a progeny thereof, wherein said first soybean plant, germplasm, or progeny comprises a favorable allele of at least one of Rag1, Rag2, and Rag3; b) selecting a second soybean plant or germplasm, or a progeny thereof, wherein said second soybean plant, germplasm, or progeny comprises a favorable allele of at least one of Rag1, Rag2, and Rag3 different than that of said first soybean plant, germplasm, or progeny; and c) crossing said first soybean plant, germplasm, or progeny with said second soybean plant, germplasm, or progeny.