Variability, heritability, and correlations of agronomic traits in an onion landrace and derived S1 lines

Porta, Bettina; Rivas, Mercedes; Gutiérrez, Lucı́a; Galván, Guillermo A.

doi:10.1590/s1984-70332014000100005

Cited by 19 publications

(18 citation statements)

References 14 publications

(19 reference statements)

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“…Scape length was intermediate in all accessions of both species. Generally, morphological diversity in inflorescence and scape characteristics might be due to a variation in chromosome number (Gurushidze et al 2012;Chae et al 2014, Aryakia et al 2016, natural interspecific hybrids (Gurushidze et al 2010), inbreeding depression and transgressive segregation (Porta et al 2014). In A. akaka, the foliage color was grey-green and darkgreen.…”

Section: Characteristics Of Accessionsmentioning

confidence: 99%

Genetic Diversity and Taxonomic Studies of Allium Akaka and A. Elburzense Native to Iran Using Morphological Characters

Jafari

Hassandokht

Taheri

et al. 2017

Journal of Horticultural Research

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Two Allium species (A. akaka S.G. Gmelin and A. elburzense W.) native to Iran are used locally as the fresh vegetables and in medical therapy. They are not cultivated, but are collected from the wild, thus, will soon be threatened with extinction. In this study, the diversity of 15 wild accessions (4 accessions of A. elburzense endemic of Iran and 11 accessions of A. akaka) collected from the north-western part of Iran were evaluated with the use of 16 qualitative and 16 quantitative characteristics. The morphological characters with high heritability included leaf length, flower number in umbel, inflorescence diameter, leaf dry weight, bulb fresh weight, weight of 100 seeds, seed length and seed length/width. Results of the principal component analysis indicated that 92.52% of the observed variability was explained by the first six components. The first two components explained about 64.74% of the total observed variability. The first and third hierarchical cluster analysis included all accessions of A. akaka. The accessions of A. elburzense, except one, were placed in a separate cluster. These morphological descriptors can successfully apply for evaluating morphological diversity of Allium wild accessions and can help in horticultural usage.

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Section: Characteristics Of Accessionsmentioning

confidence: 99%

Genetic Diversity and Taxonomic Studies of Allium Akaka and A. Elburzense Native to Iran Using Morphological Characters

Jafari

Hassandokht

Taheri

et al. 2017

Journal of Horticultural Research

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“…However, self-pollination of Wakaba allowed the selection of S 1 progeny for their turf quality traits, such as higher ground covering, late winter dormancy, and fewer inflorescences than the parent Wakaba ( Table 2). The available literature indicates that forcibly self-pollinating outcrossing species can produce superior progeny that receive more advantageous alleles (Collin et al, 2009;Ahmed et al, 2010;Miti et al, 2010;Kawuki et al, 2011;Porta et al, 2014).…”

Section: Discussionmentioning

confidence: 99%

The Highly Heterozygous Homoploid Turfgrass Zoysia matrella Displays Desirable Traits in the S₁ Progeny

et al. 2017

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Zoysia matrella (L.) Merr. is a homoploid turfgrass that possesses intermediate traits between Z. japonica Steudel and Z. pacifica (Goudswaard) M. Hotta and Kuroki [syn. Z. matrella (L.) Merr. var. pacifica Goudswaard]. Consequently, it contributes to the growing range of variation that exists within this species. Self‐pollination reduces genetic load and can express genetic variance, enabling easy identification and selection for desired traits. The aim of this study was to evaluate the effects of self‐pollination of Z. matrella ‘Wakaba’ on morphological traits, genetic structure, and the possible selection of lines with superior traits in S1 progeny. Nine morphological characteristics (plant height, leaf width and length, stolon diameter and internode length, inflorescence number, ground covering, normalized difference vegetation index, and leaf color) were evaluated in the 364 S1 progeny. We have obtained S1 progeny exhibiting wide variation in morphological characteristics and moderate inbreeding depression in almost all traits after self‐pollination. To infer genetic structure, a total of 26 simple sequence repeat markers were used, and Bayesian‐based structure analysis grouped the progeny into three clusters. Genetic markers revealed that the level of homozygosity increased in S1 progeny caused by inbreeding. Superior progeny that exhibited high ground covering, late winter dormancy, and stay green throughout the entire winter season were selected. Self‐pollination can be used for the selection of desirable traits from highly heterozygous species such as Z. matrella. Moreover, we expect that these superior progeny could be used in further study on quantitative trait loci analysis.

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“…2c) placed in glass jars at 105°C for at least 2 h followed by 22 h at 65°C. After other 24 h, of maintaining in dry conditions all samples have been weight (Porta et al 2014).…”

Section: Methodsmentioning

confidence: 99%

“…In addition other characteristics such as the biennial generation time and severe inbreeding depression which slow the development of segregating families make more difficult the progress in onion breeding (Duangjit et al, 2013). Therefore, it is imposed to ensure as much as possible a broader access to all potential genetic resources of onion (Porta et al, 2014).…”

Section: Antofie and Sand Savamentioning

confidence: 99%

The standard characterization of the Romanian onion landrace ‘Roșie de Făgăraș’

Antofie

Sand

2016

BUASVMCN-HORT

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‘Roșie de Făgăraș’ is a red onion landrace originating from the old region Făgăraș Country situated in South East Transylvania. It was officially included in the National Official Catalogue for cultivars and hybrids in 1952, for almost 50 years, and erased before 2004 without applying in situ conservation measures. However, food security depends on the appropriate management of all genetic resources for food and agriculture (PGRFA). Thus they have to be conserved and sustainable used and efforts have to be done for the recognition of this landrace as a PGRFA and therefore to be maintained "under conservation" into the Official Catalogue. The study focused on analysing data from three localities recognized for cultivating ‘Roșie de Făgăraș’, in order to evaluate morphometric characteristics of mature onion bulbs according to the UPOV Standard TG/46/7, productivity, land cultivation and socio-economic vulnerabilities. The analysis of morphometric measurements results support that ‘Roșie de Făgăraș’ is a medium size red onion that may have the chance to enter the market place, at least at the small scale, according to the current regulatory framework of the European Union regarding the conservation of landraces and provided by: Directive 2008/62/EC, Directive 2009/145/EC and Directive 2010/60/EU. The analysis of productivity, and land cultivation revealed dramatic land use change associated with the decline of cultivated area as following: 76.27% in Mândra, 50% in Recea and 33.34% in Beclean. With an increasing aging population, lack of political support for entering the market place, decrease of landowners cultivating ‘Roșie de Făgăraș’ for trade will increase vulnerability of traditional knowledge related to the conservation of this landrace.

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Variability, heritability, and correlations of agronomic traits in an onion landrace and derived S1 lines

Abstract: -This study assessed variability, heritability and correlations of agronomic traits in an onion

Cited by 19 publications

References 14 publications

Genetic Diversity and Taxonomic Studies of Allium Akaka and A. Elburzense Native to Iran Using Morphological Characters

Genetic Diversity and Taxonomic Studies of Allium Akaka and A. Elburzense Native to Iran Using Morphological Characters

The Highly Heterozygous Homoploid Turfgrass Zoysia matrella Displays Desirable Traits in the S₁ Progeny

The standard characterization of the Romanian onion landrace ‘Roșie de Făgăraș’

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Variability, heritability, and correlations of agronomic traits in an onion landrace and derived S1 lines

Abstract: -This study assessed variability, heritability and correlations of agronomic traits in an onion

Cited by 19 publications

References 14 publications

Genetic Diversity and Taxonomic Studies of Allium Akaka and A. Elburzense Native to Iran Using Morphological Characters

Genetic Diversity and Taxonomic Studies of Allium Akaka and A. Elburzense Native to Iran Using Morphological Characters

The Highly Heterozygous Homoploid Turfgrass Zoysia matrella Displays Desirable Traits in the S1 Progeny

The standard characterization of the Romanian onion landrace ‘Roșie de Făgăraș’

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The Highly Heterozygous Homoploid Turfgrass Zoysia matrella Displays Desirable Traits in the S₁ Progeny