کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6407367 | 1628833 | 2014 | 4 صفحه PDF | دانلود رایگان |
- We identified the S-genotype of 13 North Western European pear cultivars.
- All described cultivars differed by their S-genotypes.
- Several identified S-alleles were rare alleles.
Due to the gametophytic self-incompatibility of European pear (Pyrus communis), S-compatible cultivars that flower synchronically are required in commercial pear orchards to ensure effective pollination and fruit production. The gametophytic self-incompatibility is controlled by a single locus (S-locus) encoding a polymorphic stylar ribonuclease (S-RNase) and pollen-specific expressed F-box genes (SFBB). Both the S-RNase and the SFBB genes are multi-allelic and are ideal markers for molecular S-genotyping. In the present study, we genotype the S-locus of thirteen North Western European pear cultivars by sequencing their S-RNases. All the described cultivars diverged by their S-allele combinations and six of them had unique S-genotype so that they are at least semi-compatible with all the 150 previously described cultivars and could be potentially interesting pollinator cultivars for commercial orchards.
Journal: Scientia Horticulturae - Volume 165, 22 January 2014, Pages 1-4