An Overview on the Use of Stability Parameters in Plant Breeding

Fasahat, Parviz

doi:10.15406/bbij.2015.02.00043

Cited by 40 publications

(29 citation statements)

References 83 publications

(94 reference statements)

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“…The phenotypic stability of the quantitative trait can be explored by the use of many of statistical methods allowing the analysis of genotype by environment interaction. However, these methods may produce different results (Fasahat et al 2015). The first one was AMMI (additive main effects and multiplicative interaction) analysis (Gauch 2006), which is widely used in stability analyses.…”

Section: Discussionmentioning

confidence: 99%

Carotenoids Variability of Potato Tubers in Relation to Genotype, Growing Location and Year

et al. 2019

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In this study, three cultivars of potato and seven tetraploid breeding lines with different flesh colour were cultivated for three years at four locations in Poland. The objectives of this study were to quantify the levels of total (TC) and individual carotenoids (IC) and to determine the influence of genotype, farming system, growing location, years, and environment on the contents of these components. The aim of this study was also to identify genotypes with stable level of TC and IC. The mean total carotenoids content of tubers ranged between 5.57 and 20.20 mg kg −1 FW and was influenced by location, year, genotype, and their interactions. Mean values of lutein ranged from 2.92 to 6.66 mg kg −1 FWand zeaxanthin from 1.44 to 3.05 mg kg −1 FW. The most stable level of total carotenoids content was observed in tubers of breeding line TG-97-403. The most unstable level was found in tubers of cv. Jelly. The ranking of other genotypes depended on the used method. The presented study showed that the contents of carotenoids in potato tubers are significantly affected by environmental factors that cannot be controlled, because these are usually related to the year of cultivation. ResumenEn este estudio, se sembraron tres variedades de papa y siete líneas de mejoramiento tetraploides con diferente color de pulpa durante tres años en cuatro localidades en Polonia. Los objetivos de este estudio fueron cuantificar los niveles totales (TC) e individuales (IC) de carotenoides, y determinar la influencia del genotipo, sistema de cultivo, localidad, años, y el ambiente, en el contenido de estos componentes. La meta de este estudio también fue la de identificar genotipos con niveles estables de TC e IC. La media del contenido total de carotenoides de los tubérculos fluctuó entre 5.57 y 20.20 mg kg-1 de peso fresco y fue influenciada por la localidad, el año, el genotipo, y sus interacciones. Los valores medios de luteína variaron de 2.92 a 6.66 mg kg-1 en peso fresco, y la zeaxantina de 1.44 a 3.05 mg kg-1 de peso fresco. El nivel más estable del contenido de carotenoides totales se observó en tubérculos de la línea TG-97-403. El nivel mas inestable se encontró en tubérculos de la var. Jelly. Las cifras de otros genotipos dependieron del método usado. El presente estudio mostró que los contenidos de carotenoides en tubérculos de papa se afectan significativamente por factores ambientales que no pueden controlarse, porque generalmente están relacionados por el año de su cultivo.

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Section: Discussionmentioning

confidence: 99%

Carotenoids Variability of Potato Tubers in Relation to Genotype, Growing Location and Year

et al. 2019

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“…In our studies as indicated by high ecovalences the strongest response to different environmental conditions by tree height showed P. balsamifera × P. trichocarpa hybrid, the weakest showed P. deltoides × P. nigra. Ecovalence shows how strongly varies genotype response to different environmental conditions of treatments or, in other words, the ecovalence of the genotype is its interaction with the environments (Fasahat et al 2015). Ecovalence characterizes the relative lability of a population in relation to other populations and describes what part of the G × E interaction is determined by ecogenetic variability of a hybrid.…”

Section: Performance Of Different Poplar Hybrids Under the Stressors mentioning

confidence: 99%

Ecogenetic plasticity and genetic variation in Populus hybrids under the impact of simulated climate change related stressors

Gudynaitė-Franckevičienė

Pliūra

Suchockas

2020

BALT FOR

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To meet the needs of carbon sequestration and production of raw materials from renewable natural resources for the timber market of the European Union, it is necessary to expand forest plantation areas. The efficiency of short rotation forestry depends primarily on the selection of hybrids and clones, suitable for the local environmental conditions. We postulate that ecogenetic response, ecogenetic plasticity and genotypic variation of different hybrids of poplars (Populus L.) depend both on the type of stressors (spring frosts, summer drought, increased UV-B radiation, warm winters) and peculiarities of the cross-bred species as well as on their genetic preadaptations to native environmental conditions of their origin. The aim of the study was to estimate the ecogenetic plasticity, genotypic variation of adaptive traits and adaptability of Populus hybrids under simulated conditions of the expected climate change. The research was performed with the cultivars and experimental clones of three different intraspecific hybrids of poplars (P. nigra L., P. deltoides Bartr. ex Marsh, and P. trichocarpa Torr. & Gray.) and four interspecific hybrids of poplars (P. deltoides L. × P. nigra, P. deltoides × P. trichocarpa, P. maximowiczii A. Henry × P. trichocarpa, and P. balsamifera L. × P. trichocarpa). Simulated spring frosts and summer drought treatments had a substantial impact on growth of trees, but the hybrid and clone effects were also significant and showed that many hybrids and clones in general retain their features/differences under stressful environmental conditions. A strongly expressed hybrid and clone interactions with simulated frost and drought effects (genotype-environment interaction, G × E) and not strong B-type genetic correlations of the parameters of the same hybrids and clones across different treatments showed different ecogenetic response, plasticity and specific ecological preferences of the clones and hybrids. The sensitivity of hybrids to UV-B radiation varied and depended on the origin of their parental trees and this sensitivity partially reflected their susceptibility also to other stressors. Warm winters adversely effected the growth of some hybrids while others - P. nigra × P. nigra and P. trichocarpa × P. trichocarpa, which parents originated from the southern part of their natural distribution range have increased their growth. This treatment also resulted in reduction of the heritability and genotypic variation of growth traits

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“…Typically, a significant G × E exists whenever the genotype performance greatly differs with environments 2 , 3 . When a significant G × E is identified, subsequent stability analysis is often carried out to identify stable genotypes which exhibit consistently higher yield over several environments 4 . The presence of significant G × E has been found in growth and yield traits of several field 5 – 8 and vegetable crops 3 , 9 – 11 .…”

Section: Introductionmentioning

confidence: 99%

Stability of yield and its components in grafted tomato tested across multiple environments in Texas

Djidonou

Leskovar

Joshi

et al. 2020

Sci Rep

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Grafting with vigorous rootstocks could offer tomato growers in Texas sustainable and efficient option to achieve reliable yield across a range of production systems and locations. Genotypes (G) of grafted and non-grafted tomato were grown in different environments (E) in the 2017 and 2018 spring seasons. The objectives of the study were to (i) evaluate the effects of production system and grafting on tomato yield traits, (ii) determine the size of genotypic and genotype by environment interaction (G × e) variance components, and (iii) evaluate the relative stability of tested genotypes for yield and its components across production environments. In 2017, genotypes were non-grafted 'TAMU Hot Ty' (TAM) and 'Tycoon' (TY) and each grafted on commercial tomato rootstocks 'Estamino' (TAM/ ES, TY/ES) and 'Multifort' (TAM/MU, TY/MU) while in 2018, TAM and 'HM1823' (HM) were grafted on 'Estamino' (TAM/ES, HM/ES) and 'Multifort' (TAM/MU, HM/MU). Testing environments were high tunnel (HT) and open-field (OF) in Uvalde in 2017 while in 2018, these were HT and OF in Lubbock (LU-HT, LU-OF), Overton (OV-HT, OV-OF), Uvalde (UV-HT, UV-OF), and Weslaco (WE-HT, WE-OF). Total and marketable yields, fruit number per plant, and average fruit weight were significantly affected by E, G, and G × E interaction. Environmental component contributed 71-86% to the total variation for all these traits, while genotype explained 1.5-10.8%, and the contribution of G × E ranged between 4.3 to 6.7%. Estimation of the univariate statistic parameters and genotype plus genotype × environment (GGE) biplot analysis indicated that HM/MU and HM/ES were the most stable graft combination with the highest total and marketable yields, while TAM/ES was very unstable for yields across test environments. TAM/MU was stable but with yield lower than the grand mean. These results suggest that high tomato yields could be consistently achieved with grafted combination (HM/MU and HM/ES) especially under high tunnel production system across the regions of texas. Genetics, environmental factors, and cultural management practices typically determine the extent of quantitative traits of economic importance such as genotype or cultivar yield. As such, the proportion of the variation in this phenotypic trait due to the main effect of genotype (G), the environment (E) and their interactions (G × E) is routinely assessed during the process of selecting top-performing lines 1. In this regard, multilocation trials are routinely conducted to assess the pattern of genotypic response over a number of locations and years (test environments). Typically, a significant G × E exists whenever the genotype performance greatly differs with environments 2,3. When a significant G × E is identified, subsequent stability analysis is often carried out to identify stable genotypes which exhibit consistently higher yield over several environments 4. The presence of significant G × E has been found in growth and yield traits of several field 5-8 and vegetable crops 3,9-11. In tomato (Solanum lyc...

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An Overview on the Use of Stability Parameters in Plant Breeding

Cited by 40 publications

References 83 publications

Carotenoids Variability of Potato Tubers in Relation to Genotype, Growing Location and Year

Carotenoids Variability of Potato Tubers in Relation to Genotype, Growing Location and Year

Ecogenetic plasticity and genetic variation in Populus hybrids under the impact of simulated climate change related stressors

Stability of yield and its components in grafted tomato tested across multiple environments in Texas

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