Evidence map›Paper›PMID 16682456›Full record

ArticleEukaryotic cell2006

Evidence of mRNA-mediated intron loss in the human-pathogenic fungus Cryptococcus neoformans.

Jason E Stajich, Fred S Dietrich

Open access · diamondAbstract readComparative Study
In one paragraph

Article in Eukaryotic cell, 2006. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers.

0numbers the graph read from it
0cells of the map it votes in
27citing papers in PubMed
4.7field-weighted citation impact, top 5% 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

27 citing papers in PubMed, 54 citations in OpenAlex.

  1. Trends in the evolution of intronless genes inFrontiers in plant science · 2023
    Article
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  5. Introns in Cryptococcus.Memorias do Instituto Oswaldo Cruz · 2018
    Review
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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

2 authors at 1 institution in 1 country.

Jason E StajichDepartment of Molecular Genetics and Microbiology, Center for Applied Genomics and Technology, and Institute for Genome Sciences and Policy, Duke University, Box 3568, Durham, NC 27710, USA.
Fred S Dietrich
Duke University · US

Funding

A Genomics Approach to Study C. neoformans var. grubiiR01NS042263 · NINDS · DUKE UNIVERSITY · PI DIETRICH, FRED S · 2003 to 2006
$1.5M
NINDS NIH HHS NS042263-03NINDS NIH HHS R01 NS042263
6 · The paper itself

Abstract

Introns are a defining feature of eukaryotic genomes, though the mechanism of intron gain or loss is not well understood. Reverse transcription of mRNA followed by homologous recombination with the genome has been posited as a mechanism of intron loss, though little direct evidence of recent loss events has been described to support this model. We find supporting evidence for an mRNA-mediated mechanism of loss through comparative genome analyses that revealed a recent loss of 10 adjacent introns in a 22-exon gene in the human-pathogenic fungus Cryptococcus neoformans. We surveyed the gene structures of the entire genomes of Cryptococcus gattii, which diverged from the C. neoformans lineage 37 million years ago (Mya), and C. neoformans var. grubii and var. neoformans, which diverged 18 Mya. Our comparison revealed greater than 99.9% intron conservation, with evidence from 20 genes showing evidence of intron loss, but no convincing evidence of intron gain. Our findings confirm that Cryptococcus introns have been quite stable over recent evolutionary time, with occasional mRNA-mediated intron loss events.

Indexed as

Genome, FungalIntronsBiological EvolutionCryptococcus neoformansGene DeletionRNA-Directed DNA PolymeraseRNA, MessengerSaccharomyces cerevisiaeSequence Analysis, DNARNA-Directed DNA PolymeraseRNA, Messenger

Identifiers

PMID16682456
PMCPMC1459680
OpenAlexW2159394744

What OpenQuestion holds

Textmetadata
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.