Abstract
With 3 figures and 3 tables Abstract The genetic relationships between 40 wild hazelnuts collected in northern Spain and cultivated hazelnuts, including 62 local selections and 14 reference cultivars, were investigated using 13 microsatellite loci. Microsatellite analysis revealed considerable diversity; 91 different alleles were identified with a mean of 7 per locus, and polymorphic information content values ranged from 0.43 to 0.83 with a mean of 0.69. The plot obtained from principal coordinate analysis, the unrooted neighbour‐joining tree constructed, and the population structure analysis revealed a high level of differentiation between the locally cultivated forms and the remaining materials. Introgressions within these groups were detected in the three analyses. The results indicate that hazelnuts in northern Spain contain (i) a group of accessions clearly differentiated within the Spanish–Italian gene pool, (ii) a group with intermediate forms probably derived from hybridization and (iii) accessions probably derived through exchange with other geographical areas, especially north‐eastern Spain. The presence of these different groups within the local cultivated hazelnut germplasm has consequences for its preservation and use.
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Claims 7
Claim · model-written summary
The 13 microsatellite loci revealed 91 different alleles, with a mean of 7 per locus.
- Taxon
- Corylus avellana L.
Corylus avellanat1 - Outcome
- allelese1
- Value
- 91 different allelese1
- Qualifier
- mean of 7 per locuse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“Corylus avellana L.”
e1“91 different alleles were identified with a mean of 7 per locus”
Claim · model-written summary
Polymorphic information content values ranged from 0.43 to 0.83, with a mean of 0.69.
- Taxon
- Corylus avellana L.Corylus avellanat1
- Outcome
- polymorphic information contente2
- Value
- 0.43 to 0.83e2
- Qualifier
- mean of 0.69e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“Corylus avellana L.”
e2“polymorphic information content values ranged from 0.43 to 0.83 with a mean of 0.69”
Claim · model-written summary
There was a high level of differentiation between the locally cultivated forms and the remaining materials.
- Taxon
- Corylus avellana L.Corylus avellanat1
- Outcome
- differentiation between the locally cultivated forms and the remaining materialse3
- Direction
- high levele3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“Corylus avellana L.”
e3“a high level of differentiation between the locally cultivated forms and the remaining materials”
Claim · model-written summary
Introgressions within the groups were detected in the three analyses.
- Taxon
- Corylus avellana L.Corylus avellanat1
- Outcome
- Introgressionse4
- Qualifier
- in the three analysese4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“Corylus avellana L.”
e4“Introgressions within these groups were detected in the three analyses”
Claim · model-written summary
A group of accessions in northern Spain is clearly differentiated from the other materials.
- Taxon
- Corylus avellana L.Corylus avellanat1
- Outcome
- group of accessionse5
- Qualifier
- clearly differentiatede5
- Setting
- northern Spaine0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“Corylus avellana L.”
e0“hazelnuts in northern Spain contain”
e5“a group of accessions clearly differentiated”
Claim · model-written summary
A group with intermediate forms probably derived from hybridisation was found.
- Taxon
- Corylus avellana L.Corylus avellanat1
- Outcome
- group with intermediate formse6
- Qualifier
- probably derived from hybridizatione6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“Corylus avellana L.”
e6“a group with intermediate forms probably derived from hybridization”
Claim · model-written summary
Some accessions are probably derived through exchange with other geographical areas.
- Taxon
- Corylus avellana L.Corylus avellanat1
- Outcome
- accessionse7
- Qualifier
- exchange with other geographical arease7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t1“Corylus avellana L.”
e7“accessions probably derived through exchange with other geographical areas”