Different strategies for estimating genetic parameters for collar rot resistance characteristics in Passiflora spp.

ABSTRACT The use of several strategies for estimating genetic parameters in passion fruit (Passiflora spp.) segregating populations has important implications for understanding the nature of variances, especially the traits of resistance to collar rot. The objective of this study was to estimate gen...

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Autores principales:	Marostega,Thalita N., Preisigke,Sandra C., Chimello,Antônio M., Silva,Geovani C., Gilio,Thiago A.S., Araújo,Kelly L., Barelli,Marco A.A., Neves,Leonarda G.
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2021
Materias:	Comstock Robinson Design II Fusarium solani sour passion fruit genetic resistance mixed models
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392021000300281
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spelling	oai:scielo:S0718-583920210003002812021-08-16Different strategies for estimating genetic parameters for collar rot resistance characteristics in Passiflora spp.Marostega,Thalita N.Preisigke,Sandra C.Chimello,Antônio M.Silva,Geovani C.Gilio,Thiago A.S.Araújo,Kelly L.Barelli,Marco A.A.Neves,Leonarda G. Comstock Robinson Design II Fusarium solani sour passion fruit genetic resistance mixed models ABSTRACT The use of several strategies for estimating genetic parameters in passion fruit (Passiflora spp.) segregating populations has important implications for understanding the nature of variances, especially the traits of resistance to collar rot. The objective of this study was to estimate genetic parameters and predict gains with the selection of genotypes resistant to collar rot in a population of interspecific passion fruit hybrids. For the analysis of restricted maximum likelihood/ best linear unbiased prediction (REML/BLUP), 40 interspecific hybrids obtained by crossing resistant wild species with Passiflora edulis Sims genotypes were analyzed. The Comstock and Robinson Design II methodology used two male parents (P. nitida Kunth and P. quadrangularis L.) and two female parents of P. edulis. The evaluations took place for 33 d and 10 variables of resistance to collar rot were characterized. The expression of most variables was due to the genetic effect. Dominance effects predominated. High estimates of heritability based on clone average and selective accuracy were observed, which provides favorable gains in reducing the severity of collar rot by selecting the genotypes 115-5, 115-4, 115-7, 115-6, 115-3, 115-1, 128, 115-9, 115-4.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.81 n.3 20212021-09-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392021000300281en10.4067/S0718-58392021000300281
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Comstock Robinson Design II Fusarium solani sour passion fruit genetic resistance mixed models
spellingShingle	Comstock Robinson Design II Fusarium solani sour passion fruit genetic resistance mixed models Marostega,Thalita N. Preisigke,Sandra C. Chimello,Antônio M. Silva,Geovani C. Gilio,Thiago A.S. Araújo,Kelly L. Barelli,Marco A.A. Neves,Leonarda G. Different strategies for estimating genetic parameters for collar rot resistance characteristics in Passiflora spp.
description	ABSTRACT The use of several strategies for estimating genetic parameters in passion fruit (Passiflora spp.) segregating populations has important implications for understanding the nature of variances, especially the traits of resistance to collar rot. The objective of this study was to estimate genetic parameters and predict gains with the selection of genotypes resistant to collar rot in a population of interspecific passion fruit hybrids. For the analysis of restricted maximum likelihood/ best linear unbiased prediction (REML/BLUP), 40 interspecific hybrids obtained by crossing resistant wild species with Passiflora edulis Sims genotypes were analyzed. The Comstock and Robinson Design II methodology used two male parents (P. nitida Kunth and P. quadrangularis L.) and two female parents of P. edulis. The evaluations took place for 33 d and 10 variables of resistance to collar rot were characterized. The expression of most variables was due to the genetic effect. Dominance effects predominated. High estimates of heritability based on clone average and selective accuracy were observed, which provides favorable gains in reducing the severity of collar rot by selecting the genotypes 115-5, 115-4, 115-7, 115-6, 115-3, 115-1, 128, 115-9, 115-4.
author	Marostega,Thalita N. Preisigke,Sandra C. Chimello,Antônio M. Silva,Geovani C. Gilio,Thiago A.S. Araújo,Kelly L. Barelli,Marco A.A. Neves,Leonarda G.
author_facet	Marostega,Thalita N. Preisigke,Sandra C. Chimello,Antônio M. Silva,Geovani C. Gilio,Thiago A.S. Araújo,Kelly L. Barelli,Marco A.A. Neves,Leonarda G.
author_sort	Marostega,Thalita N.
title	Different strategies for estimating genetic parameters for collar rot resistance characteristics in Passiflora spp.
title_short	Different strategies for estimating genetic parameters for collar rot resistance characteristics in Passiflora spp.
title_full	Different strategies for estimating genetic parameters for collar rot resistance characteristics in Passiflora spp.
title_fullStr	Different strategies for estimating genetic parameters for collar rot resistance characteristics in Passiflora spp.
title_full_unstemmed	Different strategies for estimating genetic parameters for collar rot resistance characteristics in Passiflora spp.
title_sort	different strategies for estimating genetic parameters for collar rot resistance characteristics in passiflora spp.
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392021000300281
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Different strategies for estimating genetic parameters for collar rot resistance characteristics in Passiflora spp.

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