Genetic diversity of the sweet chestnut (Castanea sativa Mill.) in Central Europe and the western part of the Balkan Peninsula and evidence of marron genotype introgression into wild populations

Poljak, Igor; Idžojtić, Marilena; Šatović, Zlatko; Ježić, Marin; Ćurković‐Perica, Mirna; Simovski, Bojan; Acevski, Jane; Liber, Zlatko

doi:10.1007/s11295-017-1107-2

Cited by 23 publications

(28 citation statements)

References 90 publications

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“…Despite the detection of significant G × E in this study, G × E is somewhat low compared to the degree reported for most other traits in horticultural tree crops, e.g., ref. 83 . Differences in ranking between seasons at Prosser was the major source of G × E detected in this study.…”

Section: Discussionmentioning

confidence: 99%

Prediction of genetic value for sweet cherry fruit maturity among environments using a 6K SNP array

et al. 2019

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The timing of fruit maturity is an important trait in sweet cherry production and breeding. Phenotypic variation for phenology of fruit maturity in sweet cherry appears to be under strong genetic control, but that control might be complicated by phenotypic instability across environments. Although such genotype-by-environment interaction (G × E) is a common phenomenon in crop plants, knowledge about it is lacking for fruit maturity timing and other sweet cherry traits. In this study, 1673 genome-wide SNP markers were used to estimate genomic relationships among 597 weakly pedigree-connected individuals evaluated over two seasons at three locations in Europe and one location in the USA, thus sampling eight ‘environments’. The combined dataset enabled a single meta-analysis to investigate the environmental stability of genomic predictions. Linkage disequilibrium among marker loci declined rapidly with physical distance, and ordination of the relationship matrix suggested no strong structure among germplasm. The most parsimonious G × E model allowed heterogeneous genetic variance and pairwise covariances among environments. Narrow-sense genomic heritability was very high (0.60–0.83), as was accuracy of predicted breeding values (>0.62). Average correlation of additive effects among environments was high (0.96) and breeding values were highly correlated across locations. Results indicated that genomic models can be used in cherry to accurately predict date of fruit maturity for untested individuals in new environments. Limited G × E for this trait indicated that phenotypes of individuals will be stable across similar environments. Equivalent analyses for other sweet cherry traits, for which multiple years of data are commonly available among breeders and cultivar testers, would be informative for predicting performance of elite selections and cultivars in new environments.

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Section: Discussionmentioning

confidence: 99%

Prediction of genetic value for sweet cherry fruit maturity among environments using a 6K SNP array

et al. 2019

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“…Furthermore, our results indicated that a natural hybridization has occurred between the common and grey alder in those populations, but at relatively low rates. However, these events may influence the diversity and structure of populations (Barton 2001;Poljak et al 2017), and increase within-population morphological variability. In the current study, the abovementioned influence was strongly reduced by examining the plant material for the analysis, i.e.…”

Section: Raspravamentioning

confidence: 99%

Raznolikost i strukturiranost hrvatskih kontinentalnih i alpsko-dinarskih populacija bijele johe (Alnus incana /L./ Moench subsp. incana); geografska i okolišna izolacija kao uzrok fenotipske divergencije

Poljak

Idžojtić

Šapić

et al. 2018

Šumar. list (Online)

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“…The estimation of relatedness using LRM and QGM, using LRM >0.400 and QGM >0.750 to determine strong relationships [60] (S11 Table), showed high relatedness between continental European and England, Ireland and Wales sites in 60 sample pairs for LRM and in 77 pairs for QGM. Reducing the threshold of LRM to >0.25 (a conventional ‘parent–offspring/full sib’ class) yielded 6,841 paired matches within the continental European, British and Irish dataset, indicating a broad network of related samples but focussed on specific sites/regions.…”

Section: Resultsmentioning

confidence: 99%

“…Reducing the threshold of LRM to >0.25 (a conventional ‘parent–offspring/full sib’ class) yielded 6,841 paired matches within the continental European, British and Irish dataset, indicating a broad network of related samples but focussed on specific sites/regions. Interpreting relatedness from the LRM and QGM methods using microsatellite data requires caution [60], because genotypic similarity can vary according to allele frequencies of a population; however, LRM and QGM estimators are informative of relative kinship among individuals and have been endorsed as robust [61, 62, 63].…”

Section: Resultsmentioning

confidence: 99%

DNA analysis of Castanea sativa (sweet chestnut) in Britain and Ireland: Elucidating European origins and genepool diversity

Jarman

Mattioni

Russell³

et al. 2019

PLoS ONE

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Castanea sativa is classified as non-indigenous in Britain and Ireland. It was long held that it was first introduced into Britain by the Romans, until a recent study found no corroborative evidence of its growing here before c. AD 650. This paper presents new data on the genetic diversity of C. sativa in Britain and Ireland and potential ancestral sources in continental Europe. Microsatellite markers and analytical methods tested in previous European studies were used to genotype over 600 C. sativa trees and coppice stools, sampled from ancient semi-natural woodlands, secondary woodlands and historic cultural sites across Britain and Ireland. A single overall genepool with a diverse admixture of genotypes was found, containing two sub groups differentiating Wales from Ireland, with discrete geographical and typological clusters. C. sativa genotypes in Britain and Ireland were found to relate predominantly to some sites in Portugal, Spain, France, Italy and Romania, but not to Greece, Turkey or eastern parts of Europe. C. sativa has come to Britain and Ireland from these western European areas, which had acted as refugia in the Last Glacial Maximum; we compare its introduction with the colonization/translocation of oak, ash, beech and hazel into Britain and Ireland. Clones of C. sativa were identified in Britain, defining for the first time the antiquity of some ancient trees and coppice stools, evincing both natural regeneration and anthropogenic propagation over many centuries and informing the chronology of the species’ arrival in Britain. This new evidence on the origins and antiquity of British and Irish C. sativa trees enhances their conservation and economic significance, important in the context of increasing threats from environmental change, pests and pathogens.

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Genetic diversity of the sweet chestnut (Castanea sativa Mill.) in Central Europe and the western part of the Balkan Peninsula and evidence of marron genotype introgression into wild populations

Cited by 23 publications

References 90 publications

Prediction of genetic value for sweet cherry fruit maturity among environments using a 6K SNP array

Prediction of genetic value for sweet cherry fruit maturity among environments using a 6K SNP array

Raznolikost i strukturiranost hrvatskih kontinentalnih i alpsko-dinarskih populacija bijele johe (Alnus incana /L./ Moench subsp. incana); geografska i okolišna izolacija kao uzrok fenotipske divergencije

DNA analysis of Castanea sativa (sweet chestnut) in Britain and Ireland: Elucidating European origins and genepool diversity

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