Using multi-locus allelic sequence data to estimate genetic divergence among four Lilium (Liliaceae) cultivars

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Abstract

Next Generation Sequencing (NGS) may enable estimating relationships among genotypes using allelic variation of multiple nuclear genes simultaneously. We explored the potential and caveats of this strategy in four genetically distant Lilium cultivars to estimate their genetic divergence from transcriptome sequences using three approaches: POFAD (Phylogeny of Organisms from Allelic Data, uses allelic information of sequence data), RAxML (Randomized Accelerated Maximum Likelihood, tree building based on concatenated consensus sequences) and Consensus Network (constructing a network summarizing among gene tree conflicts). Twenty six gene contigs were chosen based on the presence of orthologous sequences in all cultivars, seven of which also had an orthologous sequence in Tulipa, used as out-group. The three approaches generated the same topology. Although the resolution offered by these approaches is high, in this case there was no extra benefit in using allelic information. We conclude that these 26 genes can be widely applied to construct a species tree for the genus Lilium.
Original languageEnglish
Article number567
JournalFrontiers in Plant Science
Volume5
DOIs
Publication statusPublished - 2014

Keywords

  • nuclear ribosomal dna
  • transcribed spacer region
  • phylogeny group classification
  • species trees
  • reticulate evolution
  • molecular phylogeny
  • flowering plants
  • genus lilium
  • apg iii
  • networks

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