52 results match your criteria: "Grainger Bioinformatics Center[Affiliation]"
Multiple historical processes obscure phylogenetic relationships in a taxonomically difficult group (Lobariaceae, Ascomycota).
Sci Rep
June 2019
Field Museum, Science and Education, Chicago, 60605, USA.
Article Synopsis
- Advances in next-generation sequencing have greatly increased the number of loci for phylogenetic analysis, yet many studies still show significant gene-tree discordance due to historical factors like rapid diversification and gene duplication.
- Our study focused on 13 genera in the Lobariaceae family, analyzing 400 single-copy nuclear genes to assess the effects of data types (nucleotide vs. amino acid) and phylogenetic methods (species tree vs. concatenation) on evolutionary relationships.
- We found that incongruences in phylogenetic trees were linked to the type of sequence data and reconstruction method, with evidence of rapid diversification occurring around the Cretaceous-Paleogene boundary, which complicates the understanding of evolutionary relationships within the Lobariaceae
Lycophyte plastid genomics: extreme variation in GC, gene and intron content and multiple inversions between a direct and inverted orientation of the rRNA repeat.
New Phytol
April 2019
Department of Ecology and Evolutionary Biology, University of Michigan, Ann Arbor, MI, 48109, USA.
Lycophytes are a key group for understanding vascular plant evolution. Lycophyte plastomes are highly distinct, indicating a dynamic evolutionary history, but detailed evaluation is hindered by the limited availability of sequences. Eight diverse plastomes were sequenced to assess variation in structure and functional content across lycophytes.
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