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W14/15 esterase gene haplotype can be a genetic landmark of cultivars and species of the genus Gentiana L

Author:
Takashi Hikage (13)
Kiyomi Kogusuri (2)
Claire Tanaka-Saito (2)
Shuji Watanabe (2)
Sakura Chiba (2)
Kohei Kume (1)
Hisako Doi (1)
Yasushi Saitoh (12)
Yoshihito Takahata (1)
Ken-ichi Tsutsumi (12) kentsu@iwate-u.ac.jp  


Journal:
Molecular Genetics and Genomics


Issue Date:
2011


Abstract(summary):

We have identified multiple alleles for a single gene termed W14/15. This gene encodes closely related but not identical proteins W14 and W15 that accumulate in overwinter buds of Gentiana triflora (Takahashi et al. in Breed Sci 56:39–46, 2006; Hikage et al. in Mol Genet Genomics 278:95–104, 2007). In this study, structural analysis of the W14/15 gene was carried out for 21 different gentian lines/cultivars consisting of 5 different species, to survey species- or line/cultivar-specific haplotypes. Within the samples examined, multiple variant forms were found. Those were categorized into seven major types (type I–VII) and ten subtypes based on the presence of three short insertion/deletion sites, three RFLP sites, and several SNP sites. Each line/cultivar had a distinct set of W14/15 gene variants for an allelic pair. Phylogenetic analysis showed that the W14/15 alleles cluster into groups that are characteristic of gentian species, i.e., G. triflora, G. scabra, G. pneumonanthe, G. septemfida and an unknown species other than the former four. In addition, within the same gentian species, different sets of haplotypes were found. Thus, the W14/15 alleles provide useful landmarks to resolve phylogenies of the genus or section Gentiana, as well as to analyze pedigree and breeding history of the cultivars derived from those Gentiana sp.


Page:
47-56


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