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Article

Microsatellite Genotyping and Genetic Diversity of a Greek Pear (Pyrus communis L.) Germplasm Collection

by
Eleftheria Deligiannidou
1,
Anastasia Boutsika
1,
Ioannis Plesias
1,
Aliki Xanthopoulou
1,
Theodoros Moysiadis
1,2,
Ifigeneia Mellidou
1,
Ioannis Manthos
1,
Thomas Sotiropoulos
3 and
Ioannis Ganopoulos
1,*
1
Institute of Plant Breeding and Genetic Resources, ELGO DIMITRA, Thermi-Thermi Road, 570 01 Thermi, Thessaloniki, Greece
2
Department of Computer Science, School of Sciences and Engineering, University of Nicosia, Nicosia 2417, Cyprus
3
Institute of Plant Breeding and Genetic Resources, Department of Deciduous Fruit Trees, ELGO-DIMITRA, R.R. Station 38, 59200 Naoussa, Greece
*
Author to whom correspondence should be addressed.
Plants 2025, 14(12), 1816; https://doi.org/10.3390/plants14121816
Submission received: 3 May 2025 / Revised: 9 June 2025 / Accepted: 12 June 2025 / Published: 13 June 2025
(This article belongs to the Special Issue Genetic Diversity and Population Structure of Plants)
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Abstract

Pear (Pyrus communis L.) is a widely cultivated fruit tree species, valued for its significant economic impact and cultural relevance. The rise in commercial cultivars, characterized by genetic uniformity and high yield, is increasingly displacing traditional landraces. However, traditional varieties are highly adapted to local environmental conditions, having resulted from centuries of selection. In this study, 51 pear (Pyrus communis L.) accessions conserved in the Greek national germplasm collection were genotyped using eight SSR markers recommended by the European Cooperative Programme for Plant Genetic Resources (ECPGR). A total of 44 alleles were detected, including several private alleles, indicative of localized adaptation or potential genetic isolation. Analyses of population structure and genetic diversity, using Principal Coordinate Analysis (PCoA), UPGMA clustering, and Bayesian inference via STRUCTURE, uncovered distinct genetic groupings within the collection. The results revealed moderate genetic variability among the 51 accessions and identified some accessions with significant genetic divergence. These findings underscore the importance of conserving Greek pear germplasm, as it represents an ideal source of desirable traits, such as stress tolerance and fruit quality, which can be utilized in breeding programs.
Keywords: microsatellites; genotyping; pear; Gene Bank collection; cluster analysis; genetic diversity microsatellites; genotyping; pear; Gene Bank collection; cluster analysis; genetic diversity

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MDPI and ACS Style

Deligiannidou, E.; Boutsika, A.; Plesias, I.; Xanthopoulou, A.; Moysiadis, T.; Mellidou, I.; Manthos, I.; Sotiropoulos, T.; Ganopoulos, I. Microsatellite Genotyping and Genetic Diversity of a Greek Pear (Pyrus communis L.) Germplasm Collection. Plants 2025, 14, 1816. https://doi.org/10.3390/plants14121816

AMA Style

Deligiannidou E, Boutsika A, Plesias I, Xanthopoulou A, Moysiadis T, Mellidou I, Manthos I, Sotiropoulos T, Ganopoulos I. Microsatellite Genotyping and Genetic Diversity of a Greek Pear (Pyrus communis L.) Germplasm Collection. Plants. 2025; 14(12):1816. https://doi.org/10.3390/plants14121816

Chicago/Turabian Style

Deligiannidou, Eleftheria, Anastasia Boutsika, Ioannis Plesias, Aliki Xanthopoulou, Theodoros Moysiadis, Ifigeneia Mellidou, Ioannis Manthos, Thomas Sotiropoulos, and Ioannis Ganopoulos. 2025. "Microsatellite Genotyping and Genetic Diversity of a Greek Pear (Pyrus communis L.) Germplasm Collection" Plants 14, no. 12: 1816. https://doi.org/10.3390/plants14121816

APA Style

Deligiannidou, E., Boutsika, A., Plesias, I., Xanthopoulou, A., Moysiadis, T., Mellidou, I., Manthos, I., Sotiropoulos, T., & Ganopoulos, I. (2025). Microsatellite Genotyping and Genetic Diversity of a Greek Pear (Pyrus communis L.) Germplasm Collection. Plants, 14(12), 1816. https://doi.org/10.3390/plants14121816

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