Evidence map›Paper›PMID 1617736›Full record

ArticleCurrent genetics1992

Electrophoretic karyotyping of wild-type and mutant Trichoderma longibrachiatum (reesei) strains.

A L Mäntylä, K H Rossi, S A Vanhanen, M E Penttilä, P L Suominen, K M Nevalainen

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Article in Current genetics, 1992. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
5.0field-weighted citation impact, top 4% of its field
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

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

21 citing papers in PubMed, 73 citations in OpenAlex.

  1. Review
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  11. Tracking the roots of cellulase hyperproduction by the fungus Trichoderma reesei using massively parallel DNA sequencing.Proceedings of the National Academy of Sciences of the United States of America · 2009
    Article
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  17. Chromosome-length polymorphism in fungi.Microbiological reviews · 1995
    Review
  18. Article
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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

6 authors at 1 institution in 1 country.

A L MäntyläResearch Laboratories, Alko Ltd, Helsinki, Finland.
K H Rossi
S A Vanhanen
M E Penttilä
P L Suominen
K M Nevalainen
VTT Technical Research Centre of Finland · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

An electrophoretic karyotype of Trichoderma longibrachiatum (reesei) was obtained using contour-clamped homogeneous electric field (CHEF) gel electrophoresis. Seven chromosomal DNA bands were separated in the wild-type T. longibrachiatum strain QM6a. The sizes of the chromosomal DNA bands ranged from 2.8 to 6.9 Mb, giving an estimated total genome size of about 33 Mb. The electrophoretic karyotype of the strain QM6a was compared to three hyper-celluloytic mutant strains, QM9414, RutC30 and VTT-D-79125. The chromosome pattern of the mutant QM9414 was quite similar to that of the wild-type QM6a except that the smallest chromosome differed somewhat in size. The VTT-D-79125 and RutC30 strains, which have undergone several mutagenesis steps, showed striking differences in their karyotype compared to the initial parent. The chromosomal DNA bands were identified using the previously characterized T. longibrachiatum genes (egl1, egl2, cbh1, cbh2, pgk1, rDNA) and random clones isolated from a genomic library. In all strains the cellulase genes cbh1, cbh2 and egl2 were located in the same linkage group (chromosome II in the wild-type), while the main endoglucanase, egl1, hybridized to another chromosomal DNA band (chromosome VI in the wild-type).

Indexed as

Chromosomes, FungalBlotting, SouthernCellulaseCloning, MolecularElectrophoresis, Gel, Pulsed-FieldGenes, FungalGenetic LinkageGenetic MarkersKaryotypingMutagenesisMutationPlasmidsPolymorphism, GeneticRecombination, GeneticTrichodermaCellulaseGenetic Markers

Identifiers

PMID1617736
OpenAlexW2043110923

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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.