Title variants
Languages of publication
Abstracts
Wild pear (Pyrus pyraster, syn. P. communis var. pyraster) is thought to be one of the species that gave rise to all other members of the genus Pyrus, although intraspecific hybridizations with cultivated varieties could cause the disappearance of original species characteristics. S-RNase alleles from 7 different wild pear individuals, collected from various regions of Poland, were cloned on the basis of the PCR method and nucleotide sequence analyses. The hypervariable (HV) region is responsible for allele-specific S-RNase activity in the self-incompatibility mechanism. The high level of polymorphism of its sequences may constitute a source of valuable phylogenetic information. From all individuals, 14 sequences were obtained successfully, and 9 of them were novel alleles. Phylogenetic analysis of these alleles was based on the amino acid sequence interpretation of coding regions and intron nucleotide sequences. The research conducted on a limited pool of available P. pyraster alleles gives only an initial insight into possible S-RNase allele polymorphisms in wild populations. At this stage, the results do not confirm a strong influence of cultivated pear species on the wild pear.
Keywords
Discipline
Journal
Year
Volume
Issue
Pages
33-35
Physical description
Contributors
References
Document Type
ARTICLE
Publication order reference
L. Wolko, Department of Biochemistry and Biotechnology, Poznan University of Life Sciences, Wolynska 35, 60?637 Poznan, Poland
Identifiers
YADDA identifier
bwmeta1.element.element-from-psjc-f82f028d-6505-3d5d-995d-d0e8429e4950
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.