Genetic Diversity and Stability of Performance of Wheat Population Varieties Developed by Participatory Breeding

Frank, Gaëlle van; Rivière, Pierre; Pin, Sophie; Baltassat, Raphaël; Berthellot, Jean-François; Caizergues, François; Dalmasso, Christian; Gascuel, Jean-Sébastien; Hyacinthe, Alexandre; Mercier, Florent; Montaz, Hélène; Ronot, Bernard; Goldringer, Isabelle

doi:10.3390/su12010384

Cited by 28 publications

(13 citation statements)

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“…The high contribution of the genotype to the variation of TKW and plant height indicates that for the studied DH lines these two traits are most stable compared with ear emergence. Van Frank et al (2020), found a close stability of breeding populations and commercial varieties for plant height and TKW. Barbu et al (2018) reported that the reduced plant height and its stability in wheat were not correlated with the genetic background of this trait.…”

Section: Discussion Discussion Discussionmentioning

confidence: 81%

Grain size and other agronomical traits variation in a winter wheat population of doubled haploid lines

Ciulcă

Giura²,

Ciulca

2020

Not Bot Horti Agrobo

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In wheat, the size of the grain, respectively its dimensions as well as degree of filled, are important characteristics on which depends both the weight of the grain and yield of flour, the quality of milling and baking as well as the production capacity of the respective genotype. This paper presents the results obtained by studying for three years, under field condition, 85 doubled haploid (DH) lines obtained from the F1’s of ‘G.603-86’ (large grains genotype) × ‘F.132’ (normal grains genotype) crosses using biotechnological Zea system. The environmental conditions of the three years had an important contribution on the genotype × year interaction, which showed also a higher influence on 1000 kernel weight (TKW). The variability of plant height and ear emergence data was also affected to a similar extent by this interaction. Based on the performed results and analyses, were highlighted lines which show high and stable values of TKW (54-64 g), associated with a plants height of approximately 85-100 cm and an ear emergence from May 11 to 17, under some climatic conditions similar to the period of study. These doubled haploids lines can be considered as promising genotypes for using in wheat breeding programs in order to improve yield performances under temperate continental climate conditions.

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Section: Discussion Discussion Discussionmentioning

confidence: 81%

Grain size and other agronomical traits variation in a winter wheat population of doubled haploid lines

Ciulcă

Giura²,

Ciulca

2020

Not Bot Horti Agrobo

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“…It should also be noted that the landraces displayed a large heterogeneity in the δ 15 N signal compared to the CVs, which could be due to their higher genetic variability [76] coupled with the aforementioned N redistribution from the ears and protein degradation of other plant parts [49]. The importance of the N redistribution mechanisms in the grain N should be considered for future plant breeding programs.…”

Section: Discussionmentioning

confidence: 99%

The Effect of Increased Ozone Levels on the Stable Carbon and Nitrogen Isotopic Signature of Wheat Cultivars and Landraces

et al. 2021

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Several studies have highlighted the negative effects of ozone (O3) on wheat development and productivity. The negative effects of O3 are mediated by changes in photosynthetic carbon and nitrogen metabolism, which are difficult and time-consuming to assess and are thus only measured sporadically throughout the plant cycle. Stable isotope measurements in grains can help integrate the effects of chronic O3 exposure over the lifespan of the plant. This particular study focuses on the extent to which the stomatal conductance and productivity of Mediterranean wheat are related to carbon and nitrogen isotopic signatures under chronic O3 exposure. An open top chamber experiment was designed to analyse the effects of the pollutant on 12 Spanish wheat genotypes, which included modern cultivars, old cultivars and landraces. Four O3 treatments were considered. Stomatal conductance (gs) measurements were carried out during anthesis, and yield and nitrogen content parameters were taken at maturity, along with the carbon (δ13C) and nitrogen (δ15N) isotopic composition measured in grains. Modern and old cultivars responded similarly to O3 and were sensitive to the pollutant regarding yield parameters and gs, while landraces were more O3-tolerant. Grain δ13C had a strong negative correlation with grain yield and stomatal conductance across genotypes and O3 conditions, and increased under higher O3 concentrations, showing its capacity to integrate O3 stress throughout the wheat cycle. Meanwhile, a higher nitrogen concentration in grains, coupled with smaller grains, led to an overall decreased grain nitrogen yield under higher O3 concentrations. This nitrogen concentration effect within the grain differed among genotypes bred at different ages, following their respective O3-sensitivity. δ15N showed a possible indirect effect of O3 on nitrogen redistribution, particularly under the highest O3 concentration. The correlations of δ15N and δ13C to the usual effects of ozone on the plant suggest their potential as indicators of chronic ozone exposure.

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“…Even if the phytochemical and micronutrient content of wheat seems to be strongly influenced by its genetics, the environment and interactions between genetics and the environment profoundly influence this content. Results are now available on agronomic variety trials across the world [23,[33][34][35][36]. These confirm the wide adaptive potential of populations but few results have been released on the nutritional and sensory characteristics of genetically diverse varieties in different growing environments.…”

Section: Introductionmentioning

confidence: 85%

“…One organic farming strategy is to diversify intra-specific genetic diversity to stabilize yield by reintroducing landraces and genetically heterogeneous varieties [23] and by growing variety mixtures. Indeed, population varieties are characterized by their high genetic diversity.…”

Section: Introductionmentioning

confidence: 99%

“…A two-year field trial was carried out to assess the first ten population varieties developed from this program and compare them to two pure-line commercial varieties. The agronomic behavior of the varieties, as well as their temporal and spatial stability and genetic diversity, are reported elsewhere [23,36]. To complete the agronomic evaluation and explore the sensory and nutritional potential of these varieties, sensory evaluations and nutritional analyses were implemented on nine of this PPBs' wheat population varieties, and two commercial varieties currently grown in organic agriculture.…”

Section: Introductionmentioning

confidence: 99%

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Sensory Analyses and Nutritional Qualities of Wheat Population Varieties Developed by Participatory Breeding

et al. 2021

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Wheat is a staple food in many diets and is currently cultivated worldwide. It provides a large proportion of the daily energy intake and contributes to food balance. Changes in agro-industrial practices in the bread sector, from the field to bread-making, have led to an increase in chronic diseases and nutritional deficits, emphasizing the link between food and health. Several levers could be used to improve the nutritional quality of bread wheat. Organic farming, by avoiding the use of pesticides, might allow for greater consumption of wholegrain products. Breeding wheat cultivars with an enhanced mineral content may serve as another lever. In this context, the on-farm participatory plant-breeding of highly diversified varieties could provide promising resources. This study investigated the sensory and nutritional quality of nine population varieties resulting from a ten-year participatory plant-breeding process compared to two commercial pure-line varieties. Analysis of variance showed genotype effects for Mg and Zn concentration, so breeding for a high Mg and Zn concentration can reasonably be envisaged. Moreover, a positive correlation was found between plant height, peduncle height (distance between the Last Leaf and Spike (LLSD)) and nutrient content. Finally, as population varieties express more differences in their profile when grown in less fertile soils, these results emphasize the benefits of genetic diversity for diverse nutritional intake and sensory properties.

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Genetic Diversity and Stability of Performance of Wheat Population Varieties Developed by Participatory Breeding

Cited by 28 publications

References 75 publications

Grain size and other agronomical traits variation in a winter wheat population of doubled haploid lines

Grain size and other agronomical traits variation in a winter wheat population of doubled haploid lines

The Effect of Increased Ozone Levels on the Stable Carbon and Nitrogen Isotopic Signature of Wheat Cultivars and Landraces

Sensory Analyses and Nutritional Qualities of Wheat Population Varieties Developed by Participatory Breeding

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