Variability and Trait Association Studies for Late Leaf Spot Resistance in a Groundnut MAGIC Population

Globally, late leaf spot (LLS), a foliar fungal disease is one of the most important biotic constraint in groundnut production. Multi-Parent Advanced Generation Inter Cross (MAGIC) groundnut population was developed in a convergent crossing scheme using eight founder parents to develop a mapping pop...

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Autores principales:	Ankush Purushottam Wankhade, Sai Rekha Kadirimangalam, Kannalli Paramashivaiah Viswanatha, Milind Panjabrao Deshmukh, Vivek Shivajirao Shinde, Dnyaneshwar Bandu Deshmukh, Janila Pasupuleti
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	groundnut MAGIC population late leaf spot detached leaf assay Agriculture S
Acceso en línea:	https://doaj.org/article/1ec7db724f8346bb8d2c8706505976ce
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spelling	oai:doaj.org-article:1ec7db724f8346bb8d2c8706505976ce2021-11-25T16:06:07ZVariability and Trait Association Studies for Late Leaf Spot Resistance in a Groundnut MAGIC Population10.3390/agronomy111121932073-4395https://doaj.org/article/1ec7db724f8346bb8d2c8706505976ce2021-10-01T00:00:00Zhttps://www.mdpi.com/2073-4395/11/11/2193https://doaj.org/toc/2073-4395Globally, late leaf spot (LLS), a foliar fungal disease is one of the most important biotic constraint in groundnut production. Multi-Parent Advanced Generation Inter Cross (MAGIC) groundnut population was developed in a convergent crossing scheme using eight founder parents to develop a mapping population for multiple traits includes LLS. The experiments conducted in light chamber using detached leaf assay, and disease field screening nurseries at two locations (ICRISAT and ARS, Kasbe Digraj) showed significant variability for LLS resistance and component of resistance traits. Total 10 MAGIC lines with longer incubation (>11.0 days) and two MAGIC lines with longer latent period (>27 days) than the resistant parent, GPBD 4 were identified. The MAGIC lines, ICGR 171413, and ICGR 171443 with a lesion diameter of <1 mm and 4.10–5.67% of leaf area damage can be valuable sources for the alleles limiting the pathogen severity. A total of 20 MAGIC lines recorded significantly superior for disease score at 105 DAP_I (5.60–6.89) compared to resistant check, GPDB 4 (6.89). Further studies to determine the type and number of genes controlling the LLS component traits in groundnut will be useful for improvement of resistance to LLS. Genomic selection approach can be valuable in groundnut breeding to harness the minor alleles contributing to the component traits of LLS resistance.Ankush Purushottam WankhadeSai Rekha KadirimangalamKannalli Paramashivaiah ViswanathaMilind Panjabrao DeshmukhVivek Shivajirao ShindeDnyaneshwar Bandu DeshmukhJanila PasupuletiMDPI AGarticlegroundnutMAGIC populationlate leaf spotdetached leaf assayAgricultureSENAgronomy, Vol 11, Iss 2193, p 2193 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	groundnut MAGIC population late leaf spot detached leaf assay Agriculture S
spellingShingle	groundnut MAGIC population late leaf spot detached leaf assay Agriculture S Ankush Purushottam Wankhade Sai Rekha Kadirimangalam Kannalli Paramashivaiah Viswanatha Milind Panjabrao Deshmukh Vivek Shivajirao Shinde Dnyaneshwar Bandu Deshmukh Janila Pasupuleti Variability and Trait Association Studies for Late Leaf Spot Resistance in a Groundnut MAGIC Population
description	Globally, late leaf spot (LLS), a foliar fungal disease is one of the most important biotic constraint in groundnut production. Multi-Parent Advanced Generation Inter Cross (MAGIC) groundnut population was developed in a convergent crossing scheme using eight founder parents to develop a mapping population for multiple traits includes LLS. The experiments conducted in light chamber using detached leaf assay, and disease field screening nurseries at two locations (ICRISAT and ARS, Kasbe Digraj) showed significant variability for LLS resistance and component of resistance traits. Total 10 MAGIC lines with longer incubation (>11.0 days) and two MAGIC lines with longer latent period (>27 days) than the resistant parent, GPBD 4 were identified. The MAGIC lines, ICGR 171413, and ICGR 171443 with a lesion diameter of <1 mm and 4.10–5.67% of leaf area damage can be valuable sources for the alleles limiting the pathogen severity. A total of 20 MAGIC lines recorded significantly superior for disease score at 105 DAP_I (5.60–6.89) compared to resistant check, GPDB 4 (6.89). Further studies to determine the type and number of genes controlling the LLS component traits in groundnut will be useful for improvement of resistance to LLS. Genomic selection approach can be valuable in groundnut breeding to harness the minor alleles contributing to the component traits of LLS resistance.
format	article
author	Ankush Purushottam Wankhade Sai Rekha Kadirimangalam Kannalli Paramashivaiah Viswanatha Milind Panjabrao Deshmukh Vivek Shivajirao Shinde Dnyaneshwar Bandu Deshmukh Janila Pasupuleti
author_facet	Ankush Purushottam Wankhade Sai Rekha Kadirimangalam Kannalli Paramashivaiah Viswanatha Milind Panjabrao Deshmukh Vivek Shivajirao Shinde Dnyaneshwar Bandu Deshmukh Janila Pasupuleti
author_sort	Ankush Purushottam Wankhade
title	Variability and Trait Association Studies for Late Leaf Spot Resistance in a Groundnut MAGIC Population
title_short	Variability and Trait Association Studies for Late Leaf Spot Resistance in a Groundnut MAGIC Population
title_full	Variability and Trait Association Studies for Late Leaf Spot Resistance in a Groundnut MAGIC Population
title_fullStr	Variability and Trait Association Studies for Late Leaf Spot Resistance in a Groundnut MAGIC Population
title_full_unstemmed	Variability and Trait Association Studies for Late Leaf Spot Resistance in a Groundnut MAGIC Population
title_sort	variability and trait association studies for late leaf spot resistance in a groundnut magic population
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/1ec7db724f8346bb8d2c8706505976ce
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Variability and Trait Association Studies for Late Leaf Spot Resistance in a Groundnut MAGIC Population

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