Gene pyramiding combinations confer resistance of Asian soybean rust
Authors:
- Daniela MeiraDMDaniela Meira
- Maiara Cecilia PanhoMPMaiara Cecilia Panho
- Eduardo BecheEBEduardo Beche
- Leomar Guilherme WoyannLWLeomar Guilherme Woyann
- Laura Alexandra MadellaLMLaura Alexandra Madella
- Anderson Simionato MilioliAMAnderson Simionato Milioli
- Lucas Leite ColonelliLCLucas Leite Colonelli
- Gaspar MaloneGMGaspar Malone
- Salvador Lima BritoSBSalvador Lima Brito
- Giovani BeninGBGiovani Benin
- 30 December 2021
- journal article
- research article
- Published by Wiley in Crop Science
- Vol. 62 (2) , 792-801
Abstract
Pyramiding Rpp genes is a promising strategy to achieve a more durable resistance against Asian soybean rust (ASR). The objective of this study was to develop Rpp‐pyramided populations and evaluate their resistance and yield in field conditions. Fifteen pyramided populations carrying different combinations of Rpp genes were developed, and the F3 lines were evaluated to phenotypic resistance and yield performance. Our results suggest that the Rpp1‐b of different resistant sources (PI 587880A, PI 594723, PI 4538A) have higher resistance and yield performance compared with other Rpp genes. Rpp‐pyramided populations carrying two and three genes showed an increase in resistance compared with populations carrying a single Rpp gene. The best gene combinations were Rpp1‐b + Rpp5, showing neither uredinia formation nor sporulation (immunity + RB1 phenotype reaction) in more than 70% of the F3 population. Rpp‐pyramided lines developed in this study have the potential to be used in backcross programs for improving ASR resistance.Keywords
This publication has 20 references indexed in Scilit:
- The locus for resistance to Asian soybean rust in PI 587855Plant Breeding, 2016
- ggplot22016
- Evaluation of Soybean Germplasm Accessions for Resistance to Phakopsora pachyrhizi Populations in the Southeastern United States, 2009–2012Crop Science, 2014
- Registration of Eight Soybean Germplasm Lines Resistant to Soybean RustJournal of Plant Registrations, 2013
- Marker-assisted selection in plant breeding2012
- Mapping and Confirmation of a New Allele at Rpp1 from Soybean PI 594538A Conferring RB Lesion–Type Resistance to Soybean RustCrop Science, 2009
- Map Location of the Rpp1 Locus That Confers Resistance to Soybean Rust in SoybeanCrop Science, 2007
- Identification of a Fourth Major Gene Conferring Resistance to Soybean Rust1Crop Science, 1986
- Relationships Among Three Genes Conferring Specific Resistance to Rust in Soybeans1Crop Science, 1983
- Current Status of the Gene-For-Gene ConceptAnnual Review of Phytopathology, 1971