from Wiktionary, Creative Commons Attribution/Share-Alike License
- proper n. A taxonomic superorder within the infraclass Placentalia — the rodents, primates, etc..
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All orders are labelled and major lineages are coloured as follows: black, Monotremata; orange, Marsupialia; blue, Afrotheria; yellow, Xenarthra; green, Laurasiatheria; and red, Euarchontoglires.
The study also bolsters recent research suggesting that bats are more closely related on the tree of evolution to horses, dogs, cows, moles and dolphins -- all members of the superorder Laurasiatheria -- than humans, monkeys, flying lemurs and mice, which belong to the Euarchontoglires superorder.
The resolution of the ancestral MHC class II structure requires an estimate of the time at which DY genes arose in order to judge whether Euarchontoglires, such as humans and mice, lost the DY subregion, or Laurasiatheria, such as carnivores and herbivores, gained the DY genes after the separation of Euarchontoglires and Laurasiatheria.
The opossum MHC structure was modified from Belov et al. . * denotes genes that are pseudo in Euarchontoglires and ** shows those genes that are functional in ruminants.
The Aime-MHC, FLA and DLA of Carnivora contained the highest number of LINEs, whereas the HLA and H2 of Euarchontoglires had the most LTRs (
In the former alpha tree, the intra-clade branches of DOA, DQA, and DRA clusters corresponded well to the taxonomic relationships of Euarchontoglires and Laurasiatheria (