Back to Search
Start Over
Molecular mapping of quantitative disease resistance loci for soybean partial resistance to Phytophthora sansomeana
- Source :
- Theoretical and Applied Genetics. 134:1977-1987
- Publication Year :
- 2021
- Publisher :
- Springer Science and Business Media LLC, 2021.
-
Abstract
- Two soybean QDRL were identified with additive interaction to P. sansomeana isolate MPS17-22. Further analyses uncovered four interaction patterns between the two QDRL and seven additional P. sansomeana isolates. Phytophthora sansomeana is a recently recognized species that contributes to root rot in soybean. Previous studies indicated that P. sansomeana is widely distributed among soybean growing regions and has a much wider host range than P. sojae, a well-known pathogen of soybean. Unlike P. sojae, no known disease resistance genes have been documented that can effectively control P. sansomeana. Therefore, it is important to identify resistance that can be quickly integrated into future soybean varieties. E13901 is an improved soybean line that confers partial resistance to P. sansomeana. A mapping population of 228 F4:5 families was developed from a cross between E13901 and a susceptible improved soybean variety E13390. Using a composite interval mapping method, two quantitative disease resistance loci (QDRL) were identified on Chromosomes 5 (designated qPsan5.1) and 16 (designated qPsan16.1), respectively. qPsan5.1 was mapped at 54.71 cM between Gm05_32565157_T_C and Gm05_32327497_T_C. qPsan5.1 was contributed by E13390 and explained about 6% of the disease resistance variation. qPsan16.1 was located at 39.01 cM between Gm16_35700223_G_T and Gm16_35933600/ Gm16_35816475. qPsan16.1 was from E13901 and could explain 5.5% of partial disease resistance. Further analysis indicated an additive interaction of qPsan5.1 and qPsan16.1 against P. sansomeana isolate MPS17-22. Marker assisted resistance spectrum analysis and progeny tests verified the two QDRL and their interaction patterns with other P. sansomeana isolates. Both QDRL can be quickly integrated into soybean varieties using marker assisted selection.
- Subjects :
- Genetic Markers
Phytophthora
0106 biological sciences
Genetic Linkage
Quantitative Trait Loci
Population
Plant disease resistance
Biology
01 natural sciences
Genetics
Root rot
education
Gene
Pathogen
Crosses, Genetic
Disease Resistance
Plant Diseases
education.field_of_study
Resistance (ecology)
Phytophthora sansomeana
Chromosome Mapping
food and beverages
General Medicine
Marker-assisted selection
Soybeans
Agronomy and Crop Science
010606 plant biology & botany
Biotechnology
Subjects
Details
- ISSN :
- 14322242 and 00405752
- Volume :
- 134
- Database :
- OpenAIRE
- Journal :
- Theoretical and Applied Genetics
- Accession number :
- edsair.doi.dedup.....f730f1ede960b00141363668087d83ad