NDLI: Self-compatibility in ‘Zaohong’ Japanese apricot is associated with the loss of function of pollen S genes

Content Provider	Springer Nature Link
Author	Wang, Pei Pei Gao, Zhi Hong Ni, Zhao Jun Zhang, Zhen Cai, Bin Hua
Copyright Year	2013
Abstract	While most Japanese apricot (Prunus mume Sieb. et Zucc.) cultivars display typical S-RNase-based gametophytic self-incompatibility, some self-compatible (SC) cultivars have also been identified. In this study, we confirmed SC of ‘Zaohong’ through replicated self-pollination tests. Cross-pollination tests showed that SC of ‘Zaohong’ was caused by a loss of pollen function, so we determined that the S-genotype of ‘Zaohong’ was S $_{ 2 }$ S $_{ 15 }$. Sequence analysis of the S-haplotypes of ‘Zaohong’ showed no mutations which were likely to alter gene function. Furthermore, expression analysis based on RT-PCR of S-locus genes revealed no differences at the transcript level when compared with ‘Xiyeqing’, a self-incompatible cultivar with the same S haplotypes. In addition, except for S-locus genes, a new type of F-box gene encoding a previously uncharacterised protein with high sequence similarity (61.03–64.65 %) to Prunus SFB genes was identified. Putative structural regions of PmF-box genes have been described, corresponding to regions in PmSFB alleles, but with some sequence variations. These results suggest that SC in ‘Zaohong’ occurs in pollen, and that other factors outside the S-locus, including PmF-box genes, might be associated with the loss of function of pollen S genes.
Starting Page	6485
Ending Page	6493
Page Count	9
File Format	PDF
ISSN	03014851
Journal	Molecular Biology Reports
Volume Number	40
Issue Number	11
e-ISSN	15734978
Language	English
Publisher	Springer Netherlands
Publisher Date	2013-09-24
Publisher Place	Dordrecht
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Japanese apricot Self-compatibility (compatible) (SC) Self-incompatibility (incompatible) (SI) S-RNase SFB PmF-box Animal Biochemistry Animal Anatomy / Morphology / Histology
Content Type	Text
Resource Type	Article
Subject	Genetics Medicine Molecular Biology

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