Utility of wild germplasm in olive breeding

Klepo, Tatjana; Rosa, Raúl de la; Šatović, Zlatko; León, Lorenzo; Belaj, Angjelina

doi:10.1016/j.scienta.2012.12.010

Cited by 41 publications

(37 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This variation suggests that oleaster germplasm could represent an interesting source of genes for the obtainment of new cultivars adapted to the various climate conditions occurring in the species' distribution area (Lumaret et al 2004). According to León et al (2007) and Klepo et al (2013), the transmission of short juvenile period is, for breeders, an interesting trait of wild olive for both reducing the evaluation period of seedlings and the unproductive period of the new cultivars. Those oleaster trees should offer opportunity to screen for new genotypes producing oil with more equilibrated composition and acceptable agronomic behavior.…”

Section: Discussionmentioning

confidence: 99%

The coexistence of oleaster and traditional varieties affects genetic diversity and population structure in Algerian olive (Olea europaea) germplasm

Boucheffa

Miazzi

Rienzo

et al. 2016

Genet Resour Crop Evol

View full text Add to dashboard Cite

The present work was aimed at assessing the genetic diversity of 42 local cultivars and oleaster genotypes from the area of Bejaia in Algeria. Fifteen highly polymorphic Simple Sequence Repeat markers were evaluated and proved to be very informative, producing a total number of 160 alleles with an average value of 10.7 per locus; the SSRs DCA09 and DCA16 were the most informative, distinguishing 17 and 19 genotypes, respectively. Phylogenetic and population structure analysis split the accessions in two main groups corresponding to most of oleasters and most of traditional varieties, respectively. Interestingly, ten traditional varieties resulted strictly related to the oleasters, indicating hybridization between the two botanical varieties. Genetic parameters and private alleles of groups confirmed this observation and indicated a wide genetic variability in Algerian olive germplasm. The results suggest the need to preserve and characterize this germplasm in order to limit the risk of losing potential important genetic traits present in the crop wild relatives

show abstract

Section: Discussionmentioning

confidence: 99%

The coexistence of oleaster and traditional varieties affects genetic diversity and population structure in Algerian olive (Olea europaea) germplasm

Boucheffa

Miazzi

Rienzo

et al. 2016

Genet Resour Crop Evol

View full text Add to dashboard Cite

show abstract

“…In olive breeding programs, the effectiveness of SSRs in the identification of paternity contribution to the progeny has been proven by a number of authors (De la Rosa et al 2004;Diaz et al 2007;Klepo et al 2013;Shemer et al 2014;Cáceres et al 2015). The results have shown that SSRs are convenient to assess routinely the crosses and to check self-incompatibility in olive cultivars (Diaz et al 2006).…”

Section: Paternity Analysismentioning

confidence: 99%

Recent developments in olive (Olea europaea L.) genetics and genomics: applications in taxonomy, varietal identification, traceability and breeding

Sebastiani

Busconi

2017

Plant Cell Rep

View full text Add to dashboard Cite

The latest results in DNA markers application and genomic studies in olive. Olive (Olea europaea L.) is among the most ancient tree crops worldwide and the source of oil beneficial for human health. Despite this, few data on olive genetics are available in comparison with other cultivated plant species. Molecular information is mainly linked to molecular markers and their application to the study of DNA variation in the Olea europaea complex. In terms of genomic research, efforts have been made in sequencing, heralding the era of olive genomic. The present paper represents an update of a previous review work published in this journal in 2011. The review is again mainly focused on DNA markers, whose application still constitutes a relevant percentage of the most recently published researches. Since the olive genomic era has recently started, the latest results in this field are also being discussed.

show abstract

“…sylvestris ideal for in situ conservation programmes. Wild genotypes from the forest stand investigated in the present study, as well as progenies obtained from crosses with cultivar 'Picual', have been recently studied with the aim of exploiting the characteristics of this subspecies to improve the Spanish olive breeding programme from a qualitative and an agronomic point of view (Klepo et al, 2013;Arias-Calderon et al, 2015). The results stressed that the gene pool of this wild population could actually represent a future source of genetic diversity linked to interesting agronomical and ecophysiological characteristics, and suggested the high conservation value of this forest genetic resource.…”

Section: Population Genetic Diversitymentioning

confidence: 99%

“…The results of our study have therefore provided important information which can be used to plan conservation and utilization of wild olive genetic resources based on improved knowledge of the spatial extent of dispersal in wild olive. Wild olive has become increasingly of interest for breeding programmes of cultivated olive due to its resistance to biotic stresses and earliness of bearing (Klepo et al, 2013Arias-Calderon et al, 2015). The presence of weak but significant SGS suggests that, for future ex situ conservation and breeding strategies, seeds need to be collected from selected parents belonging to different genetic clusters at a distance >40 m to avoid collecting seeds from genetically related individuals.…”

Section: Implications For Conservation and Use Of O Sylvestris Genetmentioning

confidence: 99%

“…resistance to diseases, stress) to be introduced into the genome of cultivated plants (Fischer and Fischer, 2004;Hajjar and Hodgkin, 2007;Sorkheh et al, 2009;De la Rosa et al, 2014). Indeed, Klepo et al (2013Klepo et al ( , 2014 and Arias-Calderon et al (2015) demonstrated the usefulness of wild olive for generating new genotypes with relevant characteristics. Despite their acknowledged importance, wild olive populations are being affected by several threats due to human activities, climatic pressure and gametic introgression from plantations.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Pollen-mediated gene flow and fine-scale spatial genetic structure inOlea europaeasubsp.europaeavar.sylvestris

Beghè

Piotti

Šatović

et al. 2016

Ann Bot

View full text Add to dashboard Cite

Background and Aims Wild olive (Olea europaea subsp. europaea var. sylvestris) is important from an economic and ecological point of view. The effects of anthropogenic activities may lead to the genetic erosion of its genetic patrimony, which has high value for breeding programmes. In particular, the consequences of the introgression from cultivated stands are strongly dependent on the extent of gene flow and therefore this work aims at quantitatively describing contemporary gene flow patterns in wild olive natural populations.Methods The studied wild population is located in an undisturbed forest, in southern Spain, considered one of the few extant hotspots of true oleaster diversity. A total of 225 potential father trees and seeds issued from five mother trees were genotyped by eight microsatellite markers. Levels of contemporary pollen flow, in terms of both pollen immigration rates and within-population dynamics, were measured through paternity analyses. Moreover, the extent of fine-scale spatial genetic structure (SGS) was studied to assess the relative importance of seed and pollen dispersal in shaping the spatial distribution of genetic variation.Key Results The results showed that the population under study is characterized by a high genetic diversity, a relatively high pollen immigration rate (0Á57), an average within-population pollen dispersal of about 107 m and weak but significant SGS up to 40 m. The population is a mosaic of several intermingled genetic clusters that is likely to be generated by spatially restricted seed dispersal. Moreover, wild oleasters were found to be selfincompatible and preferential mating between some genotypes was revealed.Conclusions Knowledge of the within-population genetic structure and gene flow dynamics will lead to identifying possible strategies aimed at limiting the effect of anthropogenic activities and improving breeding programmes for the conservation of olive tree forest genetic resources.

show abstract

Utility of wild germplasm in olive breeding

Cited by 41 publications

References 45 publications

The coexistence of oleaster and traditional varieties affects genetic diversity and population structure in Algerian olive (Olea europaea) germplasm

The coexistence of oleaster and traditional varieties affects genetic diversity and population structure in Algerian olive (Olea europaea) germplasm

Recent developments in olive (Olea europaea L.) genetics and genomics: applications in taxonomy, varietal identification, traceability and breeding

Pollen-mediated gene flow and fine-scale spatial genetic structure inOlea europaeasubsp.europaeavar.sylvestris

Contact Info

Product

Resources

About