Evidence map›Paper›PMID 10394946›Full record

ArticlePlant molecular biology1999

A new class of plant homeobox genes is expressed in specific regions of determinate symbiotic root nodules.

J E Jørgensen, M Grønlund, N Pallisgaard, K Larsen, K A Marcker, E O Jensen

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Plant molecular biology, 1999. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.4field-weighted citation impact, top 11% 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

16 citing papers in PubMed, 33 citations in OpenAlex.

  1. HMolecular plant pathology · 2025
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  16. CPP1, a DNA-binding protein involved in the expression of a soybean leghemoglobin c3 gene.Proceedings of the National Academy of Sciences of the United States of America · 2000
    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

6 authors at 1 institution in 1 country.

J E JørgensenDepartment of Molecular and Structural Biology, University of Aarhus, Aarhus C, Denmark.
M Grønlund
N Pallisgaard
K Larsen
K A Marcker
E O Jensen
Aarhus University · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A cDNA containing a homeobox sequence was isolated from a soybean nodule-specific expression library. This homeobox cDNA, Ndx (nodulin homeobox), represents a small gene family with at least two members in soybean (Glycine max) and three in Lotus japonicus. One complete 3304 bp Ndx cDNA from L. japonicus encodes a protein, NDX, of 958 amino acids. An unusual type of homeodomain that differs in two of the most conserved amino acid positions in the consensus sequence is located close to the C-terminal and appears to be the only DNA-binding domain. Weak Ndx gene expression in the root increases very shortly after infection with Rhizobium and remains throughout nodule development. In situ hybridizations show cell-specific expression patterns that suggest developmentally separate regions in maturing determinate nodules. Thus in the maturing nodule Ndx and leghemoglobin genes are expressed in a mutually exclusive fashion. The Ndx transcript is also detectable in the young nodule primordium. Ndx expression is not confined to the root nodule since Ndx is also expressed in shoot and root meristems, indicating that the Ndx gene products might also be involved in developmental processes in other plant tissues.

Indexed as

Genes, HomeoboxGenes, PlantMembrane ProteinsAmino Acid SequenceConserved SequenceDNA, ComplementaryGlycine maxHomeodomain ProteinsIn Situ HybridizationLeghemoglobinMagnoliopsidaMultigene FamilyPlant ProteinsPlant RootsProtein Structure, SecondaryRNA, MessengerDNA, ComplementaryHomeodomain ProteinsLeghemoglobinMembrane Proteinsndx1 protein, plantnodulinPlant ProteinsRNA, MessengerRNA, Plant

Identifiers

PMID10394946
OpenAlexW120275898

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.