From Newsgroup: talk.origins
https://www.nbcnews.com/science/science-news/many-giraffe-species-are-africa-new-scientific-analysis-quadruples-cou-rcna226238
https://giraffeconservation.org/facts-about-giraffe/
The claim is that they have identified 4 distinct populations of
giraffes with 7 sub species.
This is sort of old news from 2021, but they may have more genomes
sequenced since.
The original genomics paper:
https://www.sciencedirect.com/science/article/pii/S0960982221005467
Link to open access if you are not allowed to down load the pdf from the
link above:
https://pubmed.ncbi.nlm.nih.gov/33957077/
The scam artists that are claiming to be bringing back extinct species
should start doing what they should do in order to bring back extinct
species. They need to gather enough genetically diverse samples to
recreate an extinct species. This means that they should be collecting samples from as many endangered species as they can so that when they do
go extinct they can actually recreate the species by cloning. My take
is that there likely are not enough genetic samples of Norther White
Rhinos to successfully bring the species back. The last three were
related (sire and two daughters) that they were collecting semen and
eggs from and all three had the same leg defect. They were already
suffering from inbreeding depression when the samples were collected.
They need to collect samples before there is an inbred genetic bottleneck.
You have to be able to create a large enough population so that you can
breed out the genetic defects. If all your samples like the Rhinos are homozygous for the same genetic defects you would have to fix them by
genetic engineering and we aren't able to fix things like large
deletions and chromosomal rearrangements at this time.
Ron Okimoto
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