2021年1月6日 · New reference genomes of the two extant monotreme lineages (platypus and echidna) reveal the ancestral and lineage-specific genomic changes that shape both monotreme and mammalian evolution.

2022年3月29日 · Australia’s platypus and the modern echidnas are the only surviving monotremes – egg-laying mammals – and pretty much everything about them has intrigued and, at some stage, bamboozled western scientists since Europeans first encountered a …

Monotremes (/ ˈmɒnətriːmz /) are mammals of the order Monotremata. They are the only group of living mammals that lay eggs, rather than bearing live young. The extant monotreme species are the platypus and the four species of echidnas.

Here we generate and analyse reference genomes of the platypus (Ornithorhynchus anatinus) and echidna (Tachyglossus aculeatus), which represent the only two extant monotreme lineages. The nearly complete platypus genome assembly has anchored almost the entire genome onto chromosomes, markedly improving the genome continuity and gene annotation.

Along with echidnas, platypus are grouped in a separate order of mammals known as monotremes, which are distinguished from all other mammals because they lay eggs. The platypus and echidna have both survived by occupying ecological niches.

2009年12月1日 · Only two kinds of egg-laying mammals are left on the planet today—the duck-billed platypus and the echidna, or spiny anteater. These odd “monotremes” once dominated Australia, until their...

The platypus’s closest living relatives are four species of echidna: three species of long-beaked echidna found in Papua New Guinea (Flannery and Groves 1998), and the short-beaked echidna found in both Australia and Papua New Guinea (as shown above).