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Molecular Biology: Genetics

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Added to Distribution Section

Untitled

Added sentence to Distribution section with reference citing the 2013 study, "A Revised Timescale for Human Evolution Based on Ancient Mitochondrial Genomes" (Fu et al. 2013) which states, "All but one of the ancient modern human sequences from Europe belonged to mtDNA hg U, thus confirming previous findings that hg U was the dominant type of mtDNA before the spread of agriculture into Europe." Also see older study: "Genetic discontinuity between local hunter-gatherers and central Europe’s first farmers" (Bramanti et al.). Science, 326 2009, pp. 137–140, which states, "After the domestication of animals and crops in the Near East some 11,000 years ago, farming had reached much of central Europe by 7500 years before the present. The extent to which these early European farmers were immigrants or descendants of resident hunter-gatherers who had adopted farming has been widely debated. We compared new mitochondrial DNA (mtDNA) sequences from late European hunter-gatherer skeletons with those from early farmers and from modern Europeans. We find large genetic differences between all three groups that cannot be explained by population continuity alone. Most (82%) of the ancient hunter-gatherers share mtDNA types that are relatively rare in central Europeans today. Together, these analyses provide persuasive evidence that the first farmers were not the descendants of local hunter-gatherers but immigrated into central Europe at the onset of the Neolithic." - Scienceditor7 (talk) 07:56, 13 April 2014 (UTC)[reply]

Map Image

The proposed origin, migratory route, and time depth of LLY22G (y-DNA haplogroup N) on this map is not at all in accordance with the current peer-reviewed scientific literature on the subject. See, for example:

On Hg N: "A counter-clockwise northern route of the Y-chromosome haplogroup N from Southeast Asia towards Europe" (European Journal of Genetics, Dec. 2006. Nature.)

On Subhaplgroup N3's subclades: "Y-chromosome haplogroup N dispersals from south Siberia to Europe" (Journal of Human Genetics, Aug. 2007. Springer Link.)

Peer Gynt 09:41, 24 August 2007 (UTC)[reply]

Meaning?

The opening paragraph of section "Haplogroup U5" contains the following statement:

The first place scientists find U5 in Europe is in Cyrenaica, and artifacts are found in Iberia, as it's the first in Europe and evolved in Europe.

However, to the best of my knowledge, Cyrenaica is located in Libya -- and Libya is not now, nor ever has been, considered part of Europe. Polaris999 20:34, 4 December 2007 (UTC)[reply]

agreed. this should be changed64.129.127.5 (talk) —Preceding comment was added at 17:24, 2 May 2008 (UTC)[reply]

Evolution-Pop

For me it is not understandble, why Bryan Sykes is 7 times linked to his page. He is a bestseller autor and his conclusions are dubious. To name his fantasy names in the article is a bit strange. --Sophia Nabokov (talk) 11:37, 22 January 2011 (UTC)[reply]

HIV/AIDS Progression

One of the longest surviving gay men with HIV and AIDS belongs in Haplohgroup U5a. THe length of his time with HIV literally brings up the average completely so this is a false claim. — Preceding unsigned comment added by 65.26.112.110 (talk) 16:21, 20 December 2012 (UTC)[reply]

Kostenki

This link leads to a disambiguation page, and of course it's impossible to tell which one it refers to.

Fixed! Kortoso (talk) 18:03, 22 November 2013 (UTC)[reply]

Haplogroup U6

New publication by Hervella et al. shows U6 as present in Romania by 35,000 BP, so the theory that it enters Europe from North Africa in the Early Mesolithic needs to be noted as disproven. European Prehistorian (talk) 18:58, 19 May 2016 (UTC)[reply]

Yes, and no. It didn't first enter Europe from Africa. However, here it described the high Iberian frequencies as being due to North African migration and the Hervella paper does nothing to suggest otherwise. The U6 found in Romania was basal, so it is still likely that the subtypes arose in Africa, or in a middle eastern population that would soon migrate into Africa, and only from there to Iberia. 69.166.47.99 (talk) 22:22, 19 May 2016 (UTC)[reply]

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Origins of Haplogroup U

"Haplogroup U has also been observed among ancient Egyptian mummies excavated at the Abusir el-Meleq archaeological site in Middle Egypt, dated to the 1st millennium BC.[7]" I think this study is fishy, because it seems to conflate proper New Kingdom mummies from when Egypt was a sovereign state, to include mummies as late as the fall of the Roman Empire around 500 AD. And they are all described as 'Ancient Egyptian'. Also, it is unclear why they take mtDNA from male mummies, instead of the Y-chromosome haplogroup. 83.84.100.133 (talk) 21:58, 20 April 2018 (UTC)[reply]

Possible synonyms of haplotypes U8b'k, K, and UK

There appears to be confusion and possible synonymity between the clades U8b'k, K, and UK. It is difficult to tell. I have not been able to find an authoritative reference.

It is noted on the phylogenetic tree in the main article Human_mitochondrial_DNA_haplogroup#Phylogeny the name UK is an older term and the former Name for Haplogroup U, which contains a subclade Haplogroup K.
The Wikipedia template mtDNA, titled "Phylogenetic tree of human mitochondrial DNA (mtDNA) haplogroups", shows subclade K branching from U.
Article Haplogroup UK is Stub grade and has a proposed merger to article Haplogroup K. The talk section identifies naming confusion regarding UK.
After I used Google to survey dozens of scholarly articles containing the phrase "Haplogroup UK", the term UK seems to be an informal reference to branch K of branch U or a specific mutation found in subclade U.

There seems to be no single or common authority yet on haplogroup nomenclature or phylogeny, but the phylogenic tree in the main article Human_mitochondrial_DNA_haplogroup seems to be the most detailed and contains the best references. The Wikipedia articles for Haplogroup U#Haplogroup U8, Haplogroup K, Haplogroup UK could all use improvement in identification and references regarding phylogeny. Stephen Charles Thompson (talk) 22:51, 7 February 2020 (UTC)[reply]

Genética de Puerto Rico

La genética de Puerto Rico está influenciada por emigrantes de las Islas Canarias. Entonces antes de decir que este haplogrupo o el otro procede de esclavitud, hay que decir también está relación con los canarios. Por tanto haplogrupos de Puerto Rico que existan en Canarias ya no procederian de la emigración de la esclavitud, sino más bien proceden de los canarios. 85.155.108.245 (talk) 12:40, 3 March 2023 (UTC)[reply]