Genetic Mapping of Resistance to Meloidogyne arenaria in Arachis stenosperma: A New Source of Nematode Resistance for Peanut
Root-knot nematodes (RKN; Meloidogyne sp.) are a major threat to crops in tropical and subtropical regions worldwide. The use of resistant crop varieties is the preferred method of control because nematicides are expensive, and hazardous to humans and the environment. Peanut (Arachis hypogaea) is in...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Oxford University Press
2016-02-01
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| Series: | G3: Genes, Genomes, Genetics |
| Subjects: | |
| Online Access: | http://g3journal.org/lookup/doi/10.1534/g3.115.023044 |
| _version_ | 1818665611139481600 |
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| author | Soraya C. M. Leal-Bertioli Márcio C. Moretzsohn Philip A. Roberts Carolina Ballén-Taborda Tereza C. O. Borba Paula A. Valdisser Rosana P. Vianello Ana Cláudia G Araújo Patricia M. Guimarães David J. Bertioli |
| author_facet | Soraya C. M. Leal-Bertioli Márcio C. Moretzsohn Philip A. Roberts Carolina Ballén-Taborda Tereza C. O. Borba Paula A. Valdisser Rosana P. Vianello Ana Cláudia G Araújo Patricia M. Guimarães David J. Bertioli |
| author_sort | Soraya C. M. Leal-Bertioli |
| collection | DOAJ |
| description | Root-knot nematodes (RKN; Meloidogyne sp.) are a major threat to crops in tropical and subtropical regions worldwide. The use of resistant crop varieties is the preferred method of control because nematicides are expensive, and hazardous to humans and the environment. Peanut (Arachis hypogaea) is infected by four species of RKN, the most damaging being M. arenaria, and commercial cultivars rely on a single source of resistance. In this study, we genetically characterize RKN resistance of the wild Arachis species A. stenosperma using a population of 93 recombinant inbred lines developed from a cross between A. duranensis and A. stenosperma. Four quantitative trait loci (QTL) located on linkage groups 02, 04, and 09 strongly influenced nematode root galling and egg production. Drought-related, domestication and agronomically relevant traits were also evaluated, revealing several QTL. Using the newly available Arachis genome sequence, easy-to-use KASP (kompetitive allele specific PCR) markers linked to the newly identified RKN resistance loci were developed and validated in a tetraploid context. Therefore, we consider that A. stenosperma has high potential as a new source of RKN resistance in peanut breeding programs. |
| first_indexed | 2024-12-17T05:51:23Z |
| format | Article |
| id | doaj.art-797b6861d90c428e87df8dea0f8ec52c |
| institution | Directory Open Access Journal |
| issn | 2160-1836 |
| language | English |
| last_indexed | 2024-12-17T05:51:23Z |
| publishDate | 2016-02-01 |
| publisher | Oxford University Press |
| record_format | Article |
| series | G3: Genes, Genomes, Genetics |
| spelling | doaj.art-797b6861d90c428e87df8dea0f8ec52c2022-12-21T22:01:09ZengOxford University PressG3: Genes, Genomes, Genetics2160-18362016-02-016237739010.1534/g3.115.02304414Genetic Mapping of Resistance to Meloidogyne arenaria in Arachis stenosperma: A New Source of Nematode Resistance for PeanutSoraya C. M. Leal-BertioliMárcio C. MoretzsohnPhilip A. RobertsCarolina Ballén-TabordaTereza C. O. BorbaPaula A. ValdisserRosana P. VianelloAna Cláudia G AraújoPatricia M. GuimarãesDavid J. BertioliRoot-knot nematodes (RKN; Meloidogyne sp.) are a major threat to crops in tropical and subtropical regions worldwide. The use of resistant crop varieties is the preferred method of control because nematicides are expensive, and hazardous to humans and the environment. Peanut (Arachis hypogaea) is infected by four species of RKN, the most damaging being M. arenaria, and commercial cultivars rely on a single source of resistance. In this study, we genetically characterize RKN resistance of the wild Arachis species A. stenosperma using a population of 93 recombinant inbred lines developed from a cross between A. duranensis and A. stenosperma. Four quantitative trait loci (QTL) located on linkage groups 02, 04, and 09 strongly influenced nematode root galling and egg production. Drought-related, domestication and agronomically relevant traits were also evaluated, revealing several QTL. Using the newly available Arachis genome sequence, easy-to-use KASP (kompetitive allele specific PCR) markers linked to the newly identified RKN resistance loci were developed and validated in a tetraploid context. Therefore, we consider that A. stenosperma has high potential as a new source of RKN resistance in peanut breeding programs.http://g3journal.org/lookup/doi/10.1534/g3.115.023044ArachispeanutQTLroot-knot nematode resistancemarker-assisted selectiondroughtyieldintrogression |
| spellingShingle | Soraya C. M. Leal-Bertioli Márcio C. Moretzsohn Philip A. Roberts Carolina Ballén-Taborda Tereza C. O. Borba Paula A. Valdisser Rosana P. Vianello Ana Cláudia G Araújo Patricia M. Guimarães David J. Bertioli Genetic Mapping of Resistance to Meloidogyne arenaria in Arachis stenosperma: A New Source of Nematode Resistance for Peanut G3: Genes, Genomes, Genetics Arachis peanut QTL root-knot nematode resistance marker-assisted selection drought yield introgression |
| title | Genetic Mapping of Resistance to Meloidogyne arenaria in Arachis stenosperma: A New Source of Nematode Resistance for Peanut |
| title_full | Genetic Mapping of Resistance to Meloidogyne arenaria in Arachis stenosperma: A New Source of Nematode Resistance for Peanut |
| title_fullStr | Genetic Mapping of Resistance to Meloidogyne arenaria in Arachis stenosperma: A New Source of Nematode Resistance for Peanut |
| title_full_unstemmed | Genetic Mapping of Resistance to Meloidogyne arenaria in Arachis stenosperma: A New Source of Nematode Resistance for Peanut |
| title_short | Genetic Mapping of Resistance to Meloidogyne arenaria in Arachis stenosperma: A New Source of Nematode Resistance for Peanut |
| title_sort | genetic mapping of resistance to meloidogyne arenaria in arachis stenosperma a new source of nematode resistance for peanut |
| topic | Arachis peanut QTL root-knot nematode resistance marker-assisted selection drought yield introgression |
| url | http://g3journal.org/lookup/doi/10.1534/g3.115.023044 |
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