Consequences of a decentralized participatory barley breeding programme on changes in SSR allele frequency and diversity in one cycle of selection

Fufa, Fekadu; Baum, Michaël; Grando, S.; Kafawin, O.; Ceccarelli, Salvatore

doi:10.1111/j.1439-0523.2007.01428.x

Cited by 6 publications

(4 citation statements)

References 30 publications

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“…Moreover, participation of farmers is essential to reach marginal areas and crops of minor importance at global level but with less other means of crop choice for the people in the areas. The importance of DPPB in maintaining genetic diversity for sustainable production under marginal production conditions has been described using SSRs (simple sequence repeats) in the molecular part of the current study (Fufa et al. 2007).…”

Section: Discussionmentioning

confidence: 99%

Efficiency of farmers' selection in a participatory barley breeding programme in Jordan

Fufa¹,

Grando

Kafawin

et al. 2010

Plant Breeding

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The study assessed farmersÕ and breedersÕ selection efficiencies in one cycle of selection in a participatory barley breeding program. The selectors were compared with each other for objectively measured agronomic traits and for their selection scores. FarmersÕ scores were positively correlated with grain yield in all locations while breedersÕ scores not always. The selection criteria of farmers varied with location; those in low-moisture areas selected for tall plants while those in high rainfall area for short. BreedersÕ gave high scores to tall entries regardless of the selection environment. The results showed that in all locations farmers were at least as efficient as or, in most cases, more efficient than breeders in identifying high yielding genotypes with desirable traits for their specific environment indicating their competence in selection. Breeders appeared to select for their wide geographic mandate area while farmers focused on their specific locality. The finding indicates that decentralized participatory plant breeding is important to increase and stabilize productivity and maintain genetic diversity as each pocket area is occupied by the best and different genotypes.

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Section: Discussionmentioning

confidence: 99%

Efficiency of farmers' selection in a participatory barley breeding programme in Jordan

Fufa¹,

Grando

Kafawin

et al. 2010

Plant Breeding

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“…Therefore, to widen the genetic basis of cultivated barley, the introgression of alleles from wild ancestors and landraces is an important breeding goal (Ellis et al . 2000) and is drawing considerable effort in germplasm preservation (Fufa et al . 2007).…”

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confidence: 99%

“…It is genetically impoverished compared to its wild ancestor, as indicated by a reduced level of genetic diversity and an increased level of linkage disequilibrium (LD) (Caldwell et al 2006;Malysheva-Otto et al 2006). Therefore, to widen the genetic basis of cultivated barley, the introgression of alleles from wild ancestors and landraces is an important breeding goal and is drawing considerable effort in germplasm preservation (Fufa et al 2007).…”

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confidence: 99%

Strong correlation of wild barley (Hordeum spontaneum) population structure with temperature and precipitation variation

et al. 2009

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In this study, we present the genetic analysis of a new collection of wild barley (Hordeum spontaneum) using 42 simple sequence repeat (SSR) markers that represent the seven chromosomes. The Barley1K (B1K) infrastructure consists of 1020 accessions collected in a hierarchical sampling mode (HSM) from 51 sites across Israel and represents the wide adaptive niche of the modern barley's ancestor. According to the genetic structure analysis, the sampled sites can be divided into seven groups, and sampled microsites located on opposing slopes or in different soil types did not show significant genetic differentiation. Although the genetic analysis indicates a simple isolation-by-distance model among the populations, examination of the genetic populations' structure with abiotic parameters in an ordination analysis revealed that the combination of elevation, mid-day temperature and rainfall explains a high proportion of the variance in the principal components analysis. Our findings demonstrate that the current populations have therefore been shaped and distinguished by non-selective forces such as migration; however, we suggest that aridity and temperature gradients played major roles as selective forces in the adaptation of wild barley in this part of the Fertile Crescent. This unique collection is a prelude for the investigation of the molecular basis underlying plant adaptation and responsiveness to harsh environments.

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“…The results of many studies in several species have revealed the value of participatory varietal selection in maintaining a high level of genetic diversity (Almekinders and Elings, 2001;Zhang et al, 2011). They indicated that farmers' knowledge-based approaches are efficient in identifying high-yielding genotypes with traits of interest for their specific cropping environment, therefore highlighting farmers' know-how in selecting and conserving local genetic resources (Fufa et al, 2007(Fufa et al, , 2010.…”

Section: Introductionmentioning

confidence: 99%

Genetic diversity of on-farm selected olive trees in Moroccan traditional olive orchards

Bakkali

Haouane

Hadiddou³

et al. 2012

Plant Genet. Resour.

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Selecting desired agronomic traits may lead to a loss of genetic diversity in crop species. A molecular investigation was conducted to determine how well a set of olive (Olea europaea L.) accessions sampled in Moroccan traditional orchards represented the entire Moroccan olive diversity range. We therefore collected, in traditional agroecosystems from northern and central Morocco, a total of 88 olive trees chosen for their agronomic traits based on local farmers' knowledge. Using 12 SSR loci, 45 trees (51.1%) had a genotype identical to the 'Picholine Marocaine' variety, while the remaining samples were classified into 27 different SSR profiles. Two categories of genotypes were identified: (i) genotypes closely related to the 'Picholine Marocaine' variety and probably resulting from intensive vegetative propagation from a limited number of clones, and (ii) genotypes displaying a high number of dissimilar alleles which may have originated from selected spontaneous seedlings. A significant difference in allelic richness was revealed between the 28 on-farm selected genotypes and the overall olive diversity, represented by 57 local genotypes, indicating that the on-farm selected trees represented a subsample of Moroccan genetic diversity. This could be explained by the prevalence of 'Picholine Marocaine' in traditional orchards, while some original genotypes with favourable agronomic traits resulting from local farmers' selection were also identified. Applying an ethnobotany approach combined with criteria to fulfil farmers' household needs could be particularly relevant and better explain the obtained results.

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Consequences of a decentralized participatory barley breeding programme on changes in SSR allele frequency and diversity in one cycle of selection

Cited by 6 publications

References 30 publications

Efficiency of farmers' selection in a participatory barley breeding programme in Jordan

Efficiency of farmers' selection in a participatory barley breeding programme in Jordan

Strong correlation of wild barley (Hordeum spontaneum) population structure with temperature and precipitation variation

Genetic diversity of on-farm selected olive trees in Moroccan traditional olive orchards

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