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2 results for “Archaeplastida”
The closest relative of Archaeplastida is revealed by phylogenomic analyses that include Microheliella maris
<p>By clarifying the phylogenetic positions of "orphan" protists (unicellular micro-eukaryotes with no affinity to extant species/lineages), we may uncover the novel affiliation between two (or more) major lineages in eukaryotes. <em>Microheliella maris</em> was an orphan protist, which failed to be placed within the previously described species/lineages by pioneering phylogenetic analyses. In this study, we analyzed a 319-gene alignment and demonstrated that <em>M. maris</em> represents a basal lineage of one of the major eukaryotic lineages, Cryptista. We here propose a new clade name "Pancryptista" for Cryptista plus <em>M. maris</em>. The 319-gene analyses also indicated that <em>M. maris</em> is a key taxon to recover the monophyly of Archaeplastida and the sister relationship between Archaeplastida and Pancryptista, which is collectively called as "CAM clade" here. Significantly, Cryptophyceae tend to be attracted to Rhodophyta depending on the taxon sampling (ex., in the absence of <em>M. maris</em> and Rhodelphidia) and the particular phylogenetic 'signal' most likely hindered the stable recovery of the monophyly of Archaeplastida in previous studies.</p>
The closest relative of Archaeplastida is revealed by phylogenomic analyses that include Microheliella maris
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