Evidence map›Paper›PMID 27503539›Full record

ArticleBMC genomics2016

Fine mapping and identification of candidate genes for a QTL affecting Meloidogyne incognita reproduction in Upland cotton.

Pawan Kumar, Yajun He, Rippy Singh, Richard F Davis, Hui Guo, Andrew H Paterson, Daniel G Peterson, Xinlian Shen, Robert L Nichols, Peng W Chee

Open access · goldAbstract read
In one paragraph

Article in BMC genomics, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
8.2field-weighted citation impact, top 3% 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

13 citing papers in PubMed, 33 citations in OpenAlex.

  1. Combating Root-Knot Nematodes (Plants (Basel, Switzerland) · 2025
    Review
  2. Article
  3. Multi-Trait Genome-Wide Association Studies ofPathogens (Basel, Switzerland) · 2023
    Article
  4. Review
  5. Review
  6. Root-Knot Nematode Resistance inFrontiers in plant science · 2022
    Article
  7. Evaluation of the mechanism of action ofFrontiers in plant science · 2022
    Article
  8. Article
  9. A novel variant of Gh_D02G0276 is required for root-knot nematode resistance on chromosome 14 (D02) in Upland cotton.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2019
    Article
  10. Article
  11. Genetic mapping of a barley leaf rust resistance gene Rph26 introgressed from Hordeum bulbosum.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2018
    Article
  12. Article
  13. 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

10 authors at 4 institutions in 2 countries.

Pawan KumarCotton Molecular Breeding Laboratory, University of Georgia, Tifton, GA, 31793, USA.
Yajun HeCotton Molecular Breeding Laboratory, University of Georgia, Tifton, GA, 31793, USA.
Rippy SinghCotton Molecular Breeding Laboratory, University of Georgia, Tifton, GA, 31793, USA.
Richard F DavisUSDA-ARS, Crop Protection and Management Research Unit, Tifton, GA, 31793, USA.
Hui GuoPlant Genome Mapping Laboratory, University of Georgia, Athens, GA, 30602, USA.
Andrew H PatersonPlant Genome Mapping Laboratory, University of Georgia, Athens, GA, 30602, USA.
Daniel G PetersonInstitute for Genomics, Biocomputing & Biotechnology, Mississippi State University, Mississippi State, MS, 39762, USA.
Xinlian ShenCotton Molecular Breeding Laboratory, University of Georgia, Tifton, GA, 31793, USA.
Robert L NicholsCotton Incorporated, 6399 Weston Parkway, Cary, NC, 27513, USA.
Peng W CheeCotton Molecular Breeding Laboratory, University of Georgia, Tifton, GA, 31793, USA. pwchee@uga.edu.
Cotton (United States) · USUniversity of Georgia · USAgricultural Research Service · USMississippi State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe southern root-knot nematode (Meloidogyne incognita; RKN) is one of the most important economic pests of Upland cotton (Gossypium hirsutum L.). Host plant resistance, the ability of a plant to suppress nematode reproduction, is the most economical, practical, and environmentally sound method to provide protection against this subterranean pest. The resistant line Auburn 623RNR and a number of elite breeding lines derived from it remain the most important source of root-knot nematode (RKN) resistance. Prior genetic analysis has identified two epistatically interacting RKN resistance QTLs, qMi-C11 and qMi-C14, affecting gall formation and RKN reproduction, respectively.

resultsWe developed a genetic population segregating only for the qMi-C14 locus and evaluated the genetic effects of this QTL on RKN resistance in the absence of the qMi-C11 locus. The qMi-C14 locus had a LOD score of 12 and accounted for 24.5 % of total phenotypic variation for egg production. In addition to not being significantly associated with gall formation, this locus had a lower main effect on RKN reproduction than found in our previous study, which lends further support to evidence of epistasis with qMi-C11 in imparting RKN resistance in the Auburn 623RNR source. The locus qMi-C14 was fine-mapped with the addition of 16 newly developed markers. By using the reference genome sequence of G. raimondii, we identified 20 candidate genes encoding disease resistance protein homologs in the newly defined 2.3 Mb region flanked by two SSR markers. Resequencing of an RKN resistant and susceptible G. hirsutum germplasm revealed non-synonymous mutations in only four of the coding regions of candidate genes, and these four genes are consequently of high interest.

conclusionsOur mapping results validated the effects of the qMi-C14 resistance locus, delimiting the QTL to a smaller region, and identified tightly linked SSR markers to improve the efficiency of marker-assisted selection. The candidate genes identified warrant functional studies that will help in identifying and characterizing the actual qMi-C14 defense gene(s) against root-knot nematodes.

Indexed as

Chromosome MappingNematodaQuantitative Trait LociAllelesAnimalsChromosomes, PlantDisease ResistanceGenes, PlantGenetic Association StudiesGossypiumHost-Parasite InteractionsMicrosatellite RepeatsPhenotypePhylogenyPlant DiseasesPolymorphism, Single NucleotideCandidate genesCottonQTLsRKNRoot Knot NematodesSNP

Identifiers

PMID27503539
PMCPMC4977665
OpenAlexW2502250761

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.