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United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
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Full-Text Articles in Life Sciences
Genetic Mapping And Qtl Analysis For Peanut Smut Resistance, Francisco J. De Blas, Cecilia I. Bruno, Renee Arias, Carolina Ballén-Taborda, Eva Mamani, Claudio Oddino, Melina Rosso, Beatriz P. Costero, Marina Bressano, Juan H. Soave, Sara J. Soave, Mario I. Buteler, J. Guillermo Seijo, Alicia Massa
Genetic Mapping And Qtl Analysis For Peanut Smut Resistance, Francisco J. De Blas, Cecilia I. Bruno, Renee Arias, Carolina Ballén-Taborda, Eva Mamani, Claudio Oddino, Melina Rosso, Beatriz P. Costero, Marina Bressano, Juan H. Soave, Sara J. Soave, Mario I. Buteler, J. Guillermo Seijo, Alicia Massa
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Background: Peanut smut is a disease caused by the fungus Thecaphora frezii Carranza & Lindquist to which most commercial cultivars in South America are highly susceptible. It is responsible for severely decreased yield and no effective chemical treatment is available to date. However, smut resistance has been identified in wild Arachis species and further transferred to peanut elite cultivars. To identify the genome regions conferring smut resistance within a tetraploid genetic background, this study evaluated a RIL population {susceptible Arachis hypogaea subsp. hypogaea (JS17304-7-B) × resistant synthetic amphidiploid (JS1806) [A. correntina (K 11905) × A. cardenasii (KSSc 36015)] × A. …
Evaluation Of Leaf Spot Resistance In Wild Arachis Species Of Section Arachis, Alicia Massa, Renee Arias, Ronald B. Sorensen, Victor S. Sobolev, S. P. Tallury, H. T. Stalker, Marshall Lamb
Evaluation Of Leaf Spot Resistance In Wild Arachis Species Of Section Arachis, Alicia Massa, Renee Arias, Ronald B. Sorensen, Victor S. Sobolev, S. P. Tallury, H. T. Stalker, Marshall Lamb
United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications
Wild diploid Arachis species are potential sources of resistance to early (ELS) and late (LLS) leaf spot diseases caused by Passalora arachidicola (syn. Cercospora arachidicola Hori), and Nothopassalora personata (syn. Cercosporidium personatum (Berk. & Curt.) Deighton), respectively. Within section Arachis, limited information is available on the extent of genetic variation for resistance to these fungal pathogens. A collection of 78 accessions representing 15 wild species of Arachis section Arachis from the U.S peanut germplasm collection was evaluated for resistance to leaf spots. Screening was conducted under field (natural inoculum) conditions in Dawson, Georgia, during 2017 and 2018. Accessions differed …