Echidna - Wikipedia
Echidnas and platypuses are the only egg-laying mammals, the monotremes. The average lifespan of an echidna in the wild is estimated at 14–16 years. Fully grown females can weigh about 4.5 kilograms (9.9 lb), the males 33% larger, at about 6 kilograms (13 lb). [12]
Platypus and echidna genomes reveal mammalian biology and …
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.
Stunning breakthrough: the platypus and echidnas came from the …
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 …
Platypus and echidna genomes reveal mammalian biology and …
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.
Genome analysis of the platypus reveals unique signatures of …
Next, we determined the genetic distance of echidna (Tachyglossus aculeatus) from platypus. The median d S value of 0.125 for the orthologues of echidna and platypus, when compared to the value for the monotreme lineage, predicts that platypus and echidna last shared a common ancestor 21.2 Myr ago.
Chromosome-level echidna genome illuminates evolution of …
4 天之前 · Here, we present a new long reads–based chromosome-level short-beaked echidna (Tachyglossus aculeatus) genome, which allowed the inference of chromosomal rearrangements in the monotreme ancestor (2n = 64) and each extant species.Analysis of the more complete sex chromosomes uncovered homology between 1 Y chromosome and multiple X chromosomes, …
Echidna genome study unravels the events leading to multiple sex ...
3 天之前 · In male echidna there are nine sex chromosomes while platypus has an even 10. The male echidna has five X chromosomes, but only four Y chromosomes, whereas the male platypus has five X and five Y).
Delving into the DNA of our iconic platypus and echidna
2021年1月13日 · The genomes of the much-loved egg-laying monotremes, the platypus and echidna, have now been published in the journal Nature, providing a valuable resource for research in mammalian biology and evolution, with applications for their conservation and health.
Decoding the Echidna Genome: Insights into the Evolution of …
4 天之前 · The short-beaked echidna, scientifically referred to as Tachyglossus aculeatus, is one of Australia’s most iconic creatures. As a member of the monotreme category, which also includes the platypus, echidnas are distinguished from other mammals by their unique reproductive process involving the laying of eggs.
Platypus and echidna genomes reveal mammalian biology and
2021年1月6日 · A comparison of the genomes of the platypus and echidna — Australia’s egg-laying mammals — has revealed new clues about how these monotremes diverged from other mammals.