On-field phenotypic evaluation of sunflower populations for broad-spectrum resistance to Verticillium leaf mottle and wilt

Abstract Sunflower Verticillium Wilt and Leaf Mottle (SVW), caused by Verticillium dahliae (Kleb.; Vd), is a soil-borne disease affecting sunflower worldwide. A single dominant locus, known as V1, was formerly effective in controlling North-American Vd races, whereas races from Argentina, Europe and...

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Autores principales:	Juan F. Montecchia, Mónica I. Fass, Ignacio Cerrudo, Facundo J. Quiroz, Salvador Nicosia, Carla A. Maringolo, Julio Di Rienzo, Carolina Troglia, H. Esteban Hopp, Alberto Escande, Julio González, Daniel Álvarez, Ruth A. Heinz, Verónica V. Lia, Norma B. Paniego
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/e0246ee4ef8b4261883855a0373bf63f
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spelling	oai:doaj.org-article:e0246ee4ef8b4261883855a0373bf63f2021-12-02T15:02:31ZOn-field phenotypic evaluation of sunflower populations for broad-spectrum resistance to Verticillium leaf mottle and wilt10.1038/s41598-021-91034-42045-2322https://doaj.org/article/e0246ee4ef8b4261883855a0373bf63f2021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-91034-4https://doaj.org/toc/2045-2322Abstract Sunflower Verticillium Wilt and Leaf Mottle (SVW), caused by Verticillium dahliae (Kleb.; Vd), is a soil-borne disease affecting sunflower worldwide. A single dominant locus, known as V1, was formerly effective in controlling North-American Vd races, whereas races from Argentina, Europe and an emerging race from USA overcome its resistance. This emphasizes the need for identifying broad-spectrum genetic resistance (BSR) sources. Here we characterize two sunflower mapping populations (MPs) for SVW resistance: a biparental MP and the association MP from the National Institute of Agricultural Technology (INTA), under field growing conditions. Nine field-trials (FTs) were conducted in highly infested fields in the most SVW-affected region of Argentina. Several disease descriptors (DDs), including incidence and severity, were scored across four phenological stages. Generalized linear models were fitted according to the nature of each variable, adjusting mean phenotypes for inbred lines across and within FTs. Comparison of these responses allowed the identification of novel BSR sources. Furthermore, we present the first report of SVW resistance heritability, with estimates ranging from 35 to 45% for DDs related to disease incidence and severity, respectively. This study constitutes the largest SVW resistance characterization reported to date in sunflower, identifying valuable genetic resources for BSR-breeding to cope with a pathogen of increasing importance worldwide.Juan F. MontecchiaMónica I. FassIgnacio CerrudoFacundo J. QuirozSalvador NicosiaCarla A. MaringoloJulio Di RienzoCarolina TrogliaH. Esteban HoppAlberto EscandeJulio GonzálezDaniel ÁlvarezRuth A. HeinzVerónica V. LiaNorma B. PaniegoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-14 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Juan F. Montecchia Mónica I. Fass Ignacio Cerrudo Facundo J. Quiroz Salvador Nicosia Carla A. Maringolo Julio Di Rienzo Carolina Troglia H. Esteban Hopp Alberto Escande Julio González Daniel Álvarez Ruth A. Heinz Verónica V. Lia Norma B. Paniego On-field phenotypic evaluation of sunflower populations for broad-spectrum resistance to Verticillium leaf mottle and wilt
description	Abstract Sunflower Verticillium Wilt and Leaf Mottle (SVW), caused by Verticillium dahliae (Kleb.; Vd), is a soil-borne disease affecting sunflower worldwide. A single dominant locus, known as V1, was formerly effective in controlling North-American Vd races, whereas races from Argentina, Europe and an emerging race from USA overcome its resistance. This emphasizes the need for identifying broad-spectrum genetic resistance (BSR) sources. Here we characterize two sunflower mapping populations (MPs) for SVW resistance: a biparental MP and the association MP from the National Institute of Agricultural Technology (INTA), under field growing conditions. Nine field-trials (FTs) were conducted in highly infested fields in the most SVW-affected region of Argentina. Several disease descriptors (DDs), including incidence and severity, were scored across four phenological stages. Generalized linear models were fitted according to the nature of each variable, adjusting mean phenotypes for inbred lines across and within FTs. Comparison of these responses allowed the identification of novel BSR sources. Furthermore, we present the first report of SVW resistance heritability, with estimates ranging from 35 to 45% for DDs related to disease incidence and severity, respectively. This study constitutes the largest SVW resistance characterization reported to date in sunflower, identifying valuable genetic resources for BSR-breeding to cope with a pathogen of increasing importance worldwide.
format	article
author	Juan F. Montecchia Mónica I. Fass Ignacio Cerrudo Facundo J. Quiroz Salvador Nicosia Carla A. Maringolo Julio Di Rienzo Carolina Troglia H. Esteban Hopp Alberto Escande Julio González Daniel Álvarez Ruth A. Heinz Verónica V. Lia Norma B. Paniego
author_facet	Juan F. Montecchia Mónica I. Fass Ignacio Cerrudo Facundo J. Quiroz Salvador Nicosia Carla A. Maringolo Julio Di Rienzo Carolina Troglia H. Esteban Hopp Alberto Escande Julio González Daniel Álvarez Ruth A. Heinz Verónica V. Lia Norma B. Paniego
author_sort	Juan F. Montecchia
title	On-field phenotypic evaluation of sunflower populations for broad-spectrum resistance to Verticillium leaf mottle and wilt
title_short	On-field phenotypic evaluation of sunflower populations for broad-spectrum resistance to Verticillium leaf mottle and wilt
title_full	On-field phenotypic evaluation of sunflower populations for broad-spectrum resistance to Verticillium leaf mottle and wilt
title_fullStr	On-field phenotypic evaluation of sunflower populations for broad-spectrum resistance to Verticillium leaf mottle and wilt
title_full_unstemmed	On-field phenotypic evaluation of sunflower populations for broad-spectrum resistance to Verticillium leaf mottle and wilt
title_sort	on-field phenotypic evaluation of sunflower populations for broad-spectrum resistance to verticillium leaf mottle and wilt
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/e0246ee4ef8b4261883855a0373bf63f
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On-field phenotypic evaluation of sunflower populations for broad-spectrum resistance to Verticillium leaf mottle and wilt

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