Journal
BREEDING SCIENCE
Volume 59, Issue 2, Pages 119-127Publisher
JAPANESE SOC BREEDING
DOI: 10.1270/jsbbs.59.119
Keywords
Flow cytometry; Gentiana; nuclear DNA content; rp116-rp114 IGS; trnL(UAA) intron
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Funding
- Ministry of Agriculture, Forestry and Fisheries of Japan [2040]
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Genetic relationships among 50 Gentiana accessions, comprising 36 wild species and 14 cultivars, were determined based oil analysis of sequence data for the chloroplast trnL(UAA) intron, the rp116 coding region and the rp116-rp114 intergenic spacer (IGS), together with nuclear DNA content as determined by flow cytometric analysis. The combined chloroplast DNA (cpDNA) data set was analyzed using both neighbor joining (NJ) and maximum parsimony (MP) methods. The NJ and the strict consensus trees were generally congruent with previous phylogenetic and taxonomic Studies, whereas G. cachemirica and G. yakushimensis were classified in different sectional affinities front their prevailing classifications. Three major cpDNA haplotypes (designated A, B and C). comprising 30 accessions in the sections Pneumonanthe. Cruciata. and Kudoa (ser. Monanthae), were each distinguished by two single-nucleotide polymorphisms in the rp116-rp114 IGS and the rp116 coding region. Nuclear DNA content varied from 6.47 to 11.75 pg among the taxa possessing cpDNA haplotype A. These results provide genetic information that will assist in the development of future Gentiana breeding strategies.
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