Evidence map›Paper›PMID 34218435›Full record

ArticleJournal of phycology2021

Finding needles in a haystack-Extensive diversity in the eustigmatophyceae revealed by community metabarcode analysis targeting the rbcL gene using lineage-directed primers.

Marvin W Fawley, Karen P Fawley, Aubrey Bruce Cahoon

Abstract read
In one paragraph

Article in Journal of phycology, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. The Long chain Diol Index: A marine palaeotemperature proxy based on eustigmatophyte lipids that records the warmest seasons.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
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

3 authors.

Marvin W FawleyDivision of Natural Sciences and Mathematics, University of the Ozarks, Clarksville, Arkansas, 72830, USA.ORCID 0000-0001-8232-5818
Karen P FawleyDivision of Natural Sciences and Mathematics, University of the Ozarks, Clarksville, Arkansas, 72830, USA.
Aubrey Bruce CahoonDepartment of Natural Sciences, University of Virginia's College at Wise, Wise, Virginia, 24293, USA.ORCID 0000-0003-1313-9223

Funding

Understanding Hesitant AdoptersP20GM103429 · NIGMS · UNIV OF ARKANSAS FOR MED SCIS · PI Lawrence E Cornett, JERRY WARE · 2012 to 2026
$60.9M
NIGMS NIH HHS P20 GM103429
6 · The paper itself

Abstract

Sequences from the Stramenopile class Eustigmatophyceae are rarely reported in metabarcoding studies, and when they have been reported, there are very few haplotypes. We hypothesized that the paucity of eustigmatophyte species detected in these studies may be a result of the metabarcoding techniques used, which have primarily employed universal ribosomal RNA gene regions. In this study, we examined environmental DNA samples from 22 sites in southwestern Virginia, some of which had previously been studied using ribosomal RNA analysis. We used metabarcoding techniques targeting the plastid rbcL gene with new primers designed to produce a 370 bp amplicon from all lineages of the Eustigmatophyceae in a reference collection. The amplicons were then analyzed with DADA2 to produce amplicon sequence variants (ASVs). Our results revealed 184 rbcL haplotypes that can be tentatively assigned to the Eustigmatophyceae from these sites, representing much higher diversity than has been detected by ribosomal DNA-based studies. The techniques employed can be used for future studies of population structure, ecology, distribution, and diversity of this class. With these techniques, it should be possible to make realistic estimates of the species-level diversity of the Eustigmatophyceae on local, regional, and perhaps global scales.

Indexed as

DNA Barcoding, TaxonomicStramenopilesDNA, RibosomalRNA, RibosomalDNA, RibosomalRNA, Ribosomalalgal diversitycommunity structureenvironmental DNAEustigmatophyceaemetabarcodingspecies diversity

Identifiers

PMID34218435
PMCPMC8530920

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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.