Journal
KOREAN JOURNAL OF HORTICULTURAL SCIENCE & TECHNOLOGY
Volume 30, Issue 6, Pages 757-763Publisher
KOREAN SOC HORTICULTURAL SCIENCE
DOI: 10.7235/hort.2012.12215
Keywords
breeding; compatibility; diversity; Malus x domestica; S-RNase
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Funding
- Chungbuk National University
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To acquaint correct information about the fertilizability and analyze S-allele based genetic diversity among Korean apples, we investigated self-incompatibility genotypes by PCR and cross-pollination tests in field. As a consequence, S-genotypes of Korean apples were distributed within narrow genetic diversity as S1S3 for 'Hongro' and 'Saenara'; S1S9 for 'Gamhong' and 'Manbok'; S3S5 for 'Seokwang'; S3S9 for 'Sunhong', 'Seohong', 'Chukwang', and 'Hwahong'. Coupled with cross-pollination experiments in field, our results provide support for the view that apples are fully compatible when both of their S-loci differ and semi-compatible when they carry one different and one identical S-locus. Furthermore, the results of this study indicate that S-alleles have to be extended to various genotypes for Korean apple breeding.
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