Genetic variability in Chilean pepino (Solanum muricatum Aiton) fruit

Solanum muricatum Aiton is an herbaceous perennial fruit species native to the Andean region of Colombia, Ecuador, and Peru. In Chile, it was probably introduced in pre-Columbian times as a domesticated species and is presently grown in the coastal areas of the north-central regions of Coquimbo and...

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Autores principales:	Muñoz,Carlos, Pertuzé,Ricardo, Balzarini,Mónica, Bruno,Cecilia, Salvatierra,Angélica
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2014
Materias:	Ecotypes mixed linear models principal component analysis
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000200003
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spelling	oai:scielo:S0718-583920140002000032018-10-01Genetic variability in Chilean pepino (Solanum muricatum Aiton) fruitMuñoz,CarlosPertuzé,RicardoBalzarini,MónicaBruno,CeciliaSalvatierra,Angélica Ecotypes mixed linear models principal component analysis Solanum muricatum Aiton is an herbaceous perennial fruit species native to the Andean region of Colombia, Ecuador, and Peru. In Chile, it was probably introduced in pre-Columbian times as a domesticated species and is presently grown in the coastal areas of the north-central regions of Coquimbo and Valparaíso. The species has been bred, but little information is available on its genetic variability in Chile. To characterize the genetic variability in this species, fruits were collected from 14 different ecotypes and seeds were sown to generate approximately 60 segregants from each accession. Segregants were planted at two different locations to characterize their fruits and fruiting habits. Fruit weight ranged from 30 to 485 g, while length was 3.5 to 16.7 cm, equatorial diameter 3.4 to 9.5 cm, pulp firmness 1.7 to 10 N, and soluble solids content 6.3 to 13.5° Brix. Fruit shape ranged from flat to oblong. When analyzing the estimated variance components with a mixed linear model, most of the variability between different ecotypes was in fruit shape, length, and weight, which resulted in a genetic contribution of 34.6%, 29.3%, and 18.1% of the total variability of these traits, respectively. Genetic variability was also found for pulp firmness and soluble solids content. Therefore, enough variability is available in seed-propagated pepinos from Chilean ecotypes to allow genetic improvement of these fruit quality traits. There was also variability from genotype x environment interactions; therefore, selections must be performed for specific environments or stable selections must be found.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.74 n.2 20142014-04-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000200003en10.4067/S0718-58392014000200003
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	Ecotypes mixed linear models principal component analysis
spellingShingle	Ecotypes mixed linear models principal component analysis Muñoz,Carlos Pertuzé,Ricardo Balzarini,Mónica Bruno,Cecilia Salvatierra,Angélica Genetic variability in Chilean pepino (Solanum muricatum Aiton) fruit
description	Solanum muricatum Aiton is an herbaceous perennial fruit species native to the Andean region of Colombia, Ecuador, and Peru. In Chile, it was probably introduced in pre-Columbian times as a domesticated species and is presently grown in the coastal areas of the north-central regions of Coquimbo and Valparaíso. The species has been bred, but little information is available on its genetic variability in Chile. To characterize the genetic variability in this species, fruits were collected from 14 different ecotypes and seeds were sown to generate approximately 60 segregants from each accession. Segregants were planted at two different locations to characterize their fruits and fruiting habits. Fruit weight ranged from 30 to 485 g, while length was 3.5 to 16.7 cm, equatorial diameter 3.4 to 9.5 cm, pulp firmness 1.7 to 10 N, and soluble solids content 6.3 to 13.5° Brix. Fruit shape ranged from flat to oblong. When analyzing the estimated variance components with a mixed linear model, most of the variability between different ecotypes was in fruit shape, length, and weight, which resulted in a genetic contribution of 34.6%, 29.3%, and 18.1% of the total variability of these traits, respectively. Genetic variability was also found for pulp firmness and soluble solids content. Therefore, enough variability is available in seed-propagated pepinos from Chilean ecotypes to allow genetic improvement of these fruit quality traits. There was also variability from genotype x environment interactions; therefore, selections must be performed for specific environments or stable selections must be found.
author	Muñoz,Carlos Pertuzé,Ricardo Balzarini,Mónica Bruno,Cecilia Salvatierra,Angélica
author_facet	Muñoz,Carlos Pertuzé,Ricardo Balzarini,Mónica Bruno,Cecilia Salvatierra,Angélica
author_sort	Muñoz,Carlos
title	Genetic variability in Chilean pepino (Solanum muricatum Aiton) fruit
title_short	Genetic variability in Chilean pepino (Solanum muricatum Aiton) fruit
title_full	Genetic variability in Chilean pepino (Solanum muricatum Aiton) fruit
title_fullStr	Genetic variability in Chilean pepino (Solanum muricatum Aiton) fruit
title_full_unstemmed	Genetic variability in Chilean pepino (Solanum muricatum Aiton) fruit
title_sort	genetic variability in chilean pepino (solanum muricatum aiton) fruit
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2014
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392014000200003
work_keys_str_mv	AT munozcarlos geneticvariabilityinchileanpepinosolanummuricatumaitonfruit AT pertuzericardo geneticvariabilityinchileanpepinosolanummuricatumaitonfruit AT balzarinimonica geneticvariabilityinchileanpepinosolanummuricatumaitonfruit AT brunocecilia geneticvariabilityinchileanpepinosolanummuricatumaitonfruit AT salvatierraangelica geneticvariabilityinchileanpepinosolanummuricatumaitonfruit
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Genetic variability in Chilean pepino (Solanum muricatum Aiton) fruit

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