期刊
FLORA
卷 209, 期 9, 页码 504-512出版社
ELSEVIER GMBH
DOI: 10.1016/j.flora.2014.06.013
关键词
Caucasus; Diversity; SSR markers; Pear cultivars; Pyrus communis subsp caucasica; Pyrus spp.
资金
- NSF programme 'Phylogenetic systematics'
- Shota Rustaveli National Science Foundation, Georgia [PG/16/7-120/12]
- NSF programme 'Phylogenetic systematics' by Rancho Santa Ana Botanic Garden, Claremont, CA, USA
- ARS [ARS-0424585, 813431] Funding Source: Federal RePORTER
The genetic diversity of 108 individuals of wild pear species (Pyrus communis subsp. caucasica, P. balansae, P. salicifolia, P. syriaca, P. demetrii, P. bulgarica, P. ketzkhovelii, P. sachokiana) and 35 samples of local and introduced cultivated pears from the country of Georgia were compared to 73 individuals of wild P. communis subsp. caucasica and P. communis subsp. pyraster in the collection of USDA-ARS National Plant Germplasm System (NPGS). Pyrus communis subsp. caucasica from both Georgia and the NPGS, P. communis subsp. pyraster from the NPGS, and P. salicifolia from Georgia were differentiated, based on analysis of eleven microsatellite markers. In addition, accessions of P. communis subsp. caucasica from Georgia were genetically distinct from accessions of the same subspecies in the NPGS collection that originated from other European and Middle Eastern Asian countries. Local pear cultivars in Georgia were genetically similar to P. communis subsp. caucasica and P. balansae growing wild in Georgia suggesting that they may have originated from native pear trees that could serve as unique genetic resources for pear breeding programmes. (C) 2014 Elsevier GmbH. All rights reserved.
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