Evidence map›Paper›PMID 23557231›Full record

ArticleBMC genomics2013

Integration of mate pair sequences to improve shotgun assemblies of flow-sorted chromosome arms of hexaploid wheat.

Tatiana Belova, Bujie Zhan, Jonathan Wright, Mario Caccamo, Torben Asp, Hana Simková, Matthew Kent, Christian Bendixen, Frank Panitz, Sigbjørn Lien and 3 more

Abstract read
In one paragraph

Article in BMC genomics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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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

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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

7 citing papers in PubMed.

  1. Article
  2. Article
  3. Article
  4. New insights into the wheat chromosome 4D structure and virtual gene order, revealed by survey pyrosequencing.Plant science : an international journal of experimental plant biology · 2015
    Article
  5. Article
  6. Utilization of deletion bins to anchor and order sequences along the wheat 7B chromosome.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2014
    Article
  7. Article
4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

13 authors.

Tatiana BelovaDepartment of Plant and Environmental Sciences, University of Life Sciences, Ås, Norway.
Bujie Zhan
Jonathan Wright
Mario Caccamo
Torben Asp
Hana Simková
Matthew Kent
Christian Bendixen
Frank Panitz
Sigbjørn Lien
Jaroslav Doležel
Odd-Arne Olsen
Simen R Sandve

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe assembly of the bread wheat genome sequence is challenging due to allohexaploidy and extreme repeat content (>80%). Isolation of single chromosome arms by flow sorting can be used to overcome the polyploidy problem, but the repeat content cause extreme assembly fragmentation even at a single chromosome level. Long jump paired sequencing data (mate pairs) can help reduce assembly fragmentation by joining multiple contigs into single scaffolds. The aim of this work was to assess how mate pair data generated from multiple displacement amplified DNA of flow-sorted chromosomes affect assembly fragmentation of shotgun assemblies of the wheat chromosomes.

resultsThree mate pair (MP) libraries (2 Kb, 3 Kb, and 5 Kb) were sequenced to a total coverage of 89x and 64x for the short and long arm of chromosome 7B, respectively. Scaffolding using SSPACE improved the 7B assembly contiguity and decreased gene space fragmentation, but the degree of improvement was greatly affected by scaffolding stringency applied. At the lowest stringency the assembly N50 increased by ~7 fold, while at the highest stringency N50 was only increased by ~1.5 fold. Furthermore, a strong positive correlation between estimated scaffold reliability and scaffold assembly stringency was observed. A 7BS scaffold assembly with reduced MP coverage proved that assembly contiguity was affected only to a small degree down to ~50% of the original coverage.

conclusionThe effect of MP data integration into pair end shotgun assemblies of wheat chromosome was moderate; possibly due to poor contig assembly contiguity, the extreme repeat content of wheat, and the use of amplified chromosomal DNA for MP library construction.

Indexed as

Chromosomes, PlantContig MappingDNA, PlantGene LibraryPolyploidySequence Analysis, DNATriticumDNA, Plant

Identifiers

PMID23557231
PMCPMC3622640

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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.