Evidence map›Paper›PMID 9837835›Full record

ArticleAmerican journal of human genetics1998

Trading genes along the silk road: mtDNA sequences and the origin of central Asian populations.

D Comas, F Calafell, E Mateu, A Pérez-Lezaun, E Bosch, R Martínez-Arias, J Clarimon, F Facchini, G Fiori, D Luiselli and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in American journal of human genetics, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 86 papers.

0numbers the graph read from it
0cells of the map it votes in
86citing papers in PubMed
7.4field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

86 citing papers in PubMed, 316 citations in OpenAlex.

  1. Trial
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  16. Genetic risk between theHereditas · 2018
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26 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

12 authors at 3 institutions in 5 countries.

D ComasUnitat de Biologia Evolutiva, Facultat de Ciències de la Salut i de laVida, Barcelona, Spain.
F Calafell
E Mateu
A Pérez-Lezaun
E Bosch
R Martínez-Arias
J Clarimon
F Facchini
G Fiori
D Luiselli
D Pettener
J Bertranpetit
Pompeu Fabra University · ESUniversity of Bologna · ITUniversity of Helsinki · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Central Asia is a vast region at the crossroads of different habitats, cultures, and trade routes. Little is known about the genetics and the history of the population of this region. We present the analysis of mtDNA control-region sequences in samples of the Kazakh, the Uighurs, the lowland Kirghiz, and the highland Kirghiz, which we have used to address both the population history of the region and the possible selective pressures that high altitude has on mtDNA genes. Central Asian mtDNA sequences present features intermediate between European and eastern Asian sequences, in several parameters-such as the frequencies of certain nucleotides, the levels of nucleotide diversity, mean pairwise differences, and genetic distances. Several hypotheses could explain the intermediate position of central Asia between Europe and eastern Asia, but the most plausible would involve extensive levels of admixture between Europeans and eastern Asians in central Asia, possibly enhanced during the Silk Road trade and clearly after the eastern and western Eurasian human groups had diverged. Lowland and highland Kirghiz mtDNA sequences are very similar, and the analysis of molecular variance has revealed that the fraction of mitochondrial genetic variance due to altitude is not significantly different from zero. Thus, it seems unlikely that altitude has exerted a major selective pressure on mitochondrial genes in central Asian populations.

Indexed as

Genetic VariationPhylogenyAfricaAltitudeAsiaAsia, CentralAsian PeopleAtmospheric PressureBase SequenceDatabases, FactualDNA, MitochondrialEuropeGene FrequencyGene PoolGenetic LinkageHumansDNA, Mitochondrial

Identifiers

PMID9837835
PMCPMC1377654
OpenAlexW2162630050

What OpenQuestion holds

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Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.