Contribution of seed traits to the genetic diversity of a segregating population of Passiflora spp.

ABSTRACT Genetic diversity can be investigated early using seed traits, an important aspect of sexually propagated species. In this context, plant breeders aim at the production of new varieties using seeds with good germination and vigor. The present study was thus designed to examine the genetic d...

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Autores principales:	Torres,Géssica Xavier, Viana,Alexandre Pio, Duarte Vieira,Henrique, Rodrigues,Daniele Lima, dos Santos,Valquíria Oliveira
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2019
Materias:	Backcrossing genetic variability hybrids Passiflora edulis Passiflora setacea
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000200288
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spelling	oai:scielo:S0718-583920190002002882019-05-14Contribution of seed traits to the genetic diversity of a segregating population of Passiflora spp.Torres,Géssica XavierViana,Alexandre PioDuarte Vieira,HenriqueRodrigues,Daniele Limados Santos,Valquíria Oliveira Backcrossing genetic variability hybrids Passiflora edulis Passiflora setacea ABSTRACT Genetic diversity can be investigated early using seed traits, an important aspect of sexually propagated species. In this context, plant breeders aim at the production of new varieties using seeds with good germination and vigor. The present study was thus designed to examine the genetic diversity of a segregating population from a cross between Passiflora edulis Sims and P. setacea DC. based on seed morphological- and physiological-quality responses. Seventeen seed morphology variables were evaluated via digital image analysis, and a germination test and four vigor tests were applied for the evaluation of physiological quality. Data were interpreted by multivariate analysis for the evaluation of genetic diversity. The parents were allocated to distinct groups by the dendrogram structured using Euclidean distance, based on the morphological- and physiological-quality traits. The unweighted pair group method using arithmetic averages (UPGMA) clustering method formed three groups, the first one represented by backcrossing 32, the second by P. setacea and the third by a larger number of genotypes (P. edulis, hybrids and other backcrosses). The principal component analysis showed that the first two components explained 61.32% of the variation. The clustering methods were efficient in the evaluation of dissimilarity of genotypes from a segregating population of Passiflorainfo:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.79 n.2 20192019-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000200288en10.4067/S0718-58392019000200288
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Backcrossing genetic variability hybrids Passiflora edulis Passiflora setacea
spellingShingle	Backcrossing genetic variability hybrids Passiflora edulis Passiflora setacea Torres,Géssica Xavier Viana,Alexandre Pio Duarte Vieira,Henrique Rodrigues,Daniele Lima dos Santos,Valquíria Oliveira Contribution of seed traits to the genetic diversity of a segregating population of Passiflora spp.
description	ABSTRACT Genetic diversity can be investigated early using seed traits, an important aspect of sexually propagated species. In this context, plant breeders aim at the production of new varieties using seeds with good germination and vigor. The present study was thus designed to examine the genetic diversity of a segregating population from a cross between Passiflora edulis Sims and P. setacea DC. based on seed morphological- and physiological-quality responses. Seventeen seed morphology variables were evaluated via digital image analysis, and a germination test and four vigor tests were applied for the evaluation of physiological quality. Data were interpreted by multivariate analysis for the evaluation of genetic diversity. The parents were allocated to distinct groups by the dendrogram structured using Euclidean distance, based on the morphological- and physiological-quality traits. The unweighted pair group method using arithmetic averages (UPGMA) clustering method formed three groups, the first one represented by backcrossing 32, the second by P. setacea and the third by a larger number of genotypes (P. edulis, hybrids and other backcrosses). The principal component analysis showed that the first two components explained 61.32% of the variation. The clustering methods were efficient in the evaluation of dissimilarity of genotypes from a segregating population of Passiflora
author	Torres,Géssica Xavier Viana,Alexandre Pio Duarte Vieira,Henrique Rodrigues,Daniele Lima dos Santos,Valquíria Oliveira
author_facet	Torres,Géssica Xavier Viana,Alexandre Pio Duarte Vieira,Henrique Rodrigues,Daniele Lima dos Santos,Valquíria Oliveira
author_sort	Torres,Géssica Xavier
title	Contribution of seed traits to the genetic diversity of a segregating population of Passiflora spp.
title_short	Contribution of seed traits to the genetic diversity of a segregating population of Passiflora spp.
title_full	Contribution of seed traits to the genetic diversity of a segregating population of Passiflora spp.
title_fullStr	Contribution of seed traits to the genetic diversity of a segregating population of Passiflora spp.
title_full_unstemmed	Contribution of seed traits to the genetic diversity of a segregating population of Passiflora spp.
title_sort	contribution of seed traits to the genetic diversity of a segregating population of passiflora spp.
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2019
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392019000200288
work_keys_str_mv	AT torresgessicaxavier contributionofseedtraitstothegeneticdiversityofasegregatingpopulationofpassifloraspp AT vianaalexandrepio contributionofseedtraitstothegeneticdiversityofasegregatingpopulationofpassifloraspp AT duartevieirahenrique contributionofseedtraitstothegeneticdiversityofasegregatingpopulationofpassifloraspp AT rodriguesdanielelima contributionofseedtraitstothegeneticdiversityofasegregatingpopulationofpassifloraspp AT dossantosvalquiriaoliveira contributionofseedtraitstothegeneticdiversityofasegregatingpopulationofpassifloraspp
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Contribution of seed traits to the genetic diversity of a segregating population of Passiflora spp.

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