Abstract
The decrease in worldwide consumption of peaches due to the poor flavour quality of the fruit has increased the demand for new tasty cultivars. The availability of plant genetic resources is an important prerequisite for improving fruit quality by breeding. In Sicily there is a large collection of local cultivated peaches, whose production fills a niche in the local markets, but which is at risk of disappearing. Their characteristics include highly aromatic fruit and late ripening. Because of their important agronomic characteristics, the Department of Colture Arboree of Palermo University has collected the most interesting accessions to safeguard them and to use the indigenous resources in breeding programmes. To assess the molecular diversity within the Sicilian germplasm, 26 cultivars were screened with 15 SSRs. Eight international cultivars were also included in the analysis as controls. The number of alleles per primer pair ranged from 3 to 10 (mean = 4.7) and 15 cultivars showed a unique fingerprint. The observed heterozygosity was 0.44. Some cases of homonyms and synonyms were found. Furthermore several phenotypically different accessions were indistinguishable at the molecular level, maybe because of the occurrence of co-ancestry and inbreeding. The genetic relationships among the Sicilian cultivars were presented in a dendrogram constructed using the UPGMA method. Clusters reflected their geographical origins.
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Claims 6
Claim · model-written summary
SSR allele counts ranged from 3 to 10 per primer pair, with a mean of 4.7.
- Taxon
- PEACH
Prunus persicat0 - Outcome
- number of alleles per primer paire0
- Value
- 3 to 10 (mean = 4.7)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The number of alleles per primer pair ranged from 3 to 10 (mean = 4.7)”
t0“PEACH (PRUNUS PERSICA L. BATSCH)”
Claim · model-written summary
Fifteen cultivars had unique SSR fingerprints.
- Taxon
- PEACHPrunus persicat0
- Outcome
- unique fingerprinte0
- Value
- 15 cultivarse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“15 cultivars showed a unique fingerprint”
t0“PEACH (PRUNUS PERSICA L. BATSCH)”
Claim · model-written summary
Observed heterozygosity was 0.44.
- Taxon
- PEACHPrunus persicat0
- Outcome
- observed heterozygositye0
- Value
- 0.44e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The observed heterozygosity was 0.44”
t0“PEACH (PRUNUS PERSICA L. BATSCH)”
Claim · model-written summary
Homonyms and synonyms occurred among the cultivars.
- Taxon
- PEACHPrunus persicat0
- Outcome
- homonyms and synonymse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Some cases of homonyms and synonyms were found”
t0“PEACH (PRUNUS PERSICA L. BATSCH)”
Claim · model-written summary
Several phenotypically different accessions were indistinguishable at the molecular level.
- Taxon
- PEACHPrunus persicat0
- Outcome
- phenotypically different accessions were indistinguishable at the molecular levele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“several phenotypically different accessions were indistinguishable at the molecular level”
t0“PEACH (PRUNUS PERSICA L. BATSCH)”
Claim · model-written summary
The cultivar clusters reflected geographical origins.
- Taxon
- PEACHPrunus persicat0
- Outcome
- Clusterse0
- Setting
- geographical originse0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Clusters reflected their geographical origins”
t0“PEACH (PRUNUS PERSICA L. BATSCH)”