Evidence map›Paper›PMID 41409482›Full record

ArticleFrontiers in plant science2025

Evolutionary conservation and enhanced basal immunity of the ZmNBS gene family in maize.

Zhe Xu, Liying Feng

Abstract read
In one paragraph

Article in Frontiers in plant science, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing 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

The trial behind it

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3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Article
  2. Genome-Wide Analysis of thePlants (Basel, Switzerland) · 2026
    Article
  3. Genome-wide analysis of theFrontiers in plant science · 2026
    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

2 authors.

Zhe XuInstitution of Genomics and Bioinformatics, South China Agricultural University, Guangzhou, China.
Liying FengMaize Genome Breeding Team, Yazhouwan National Laboratory, Yazhouwan National Laboratory, Sanya, Hainan, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The nucleotide-binding site (NBS) gene family is central to plant innate immunity. However, a comprehensive understanding of its evolutionary dynamics and functional diversity in maize, particularly within a pan-genomic context, remains limited. We conducted a systematic pan-genomic analysis of the ZmNBS gene family across 26 representative maize inbred lines. Our approach integrated evolutionary genetics, structural variation analysis, and expression profiling to investigate presence-absence variation (PAV), duplication modes, evolutionary rates, and the impact of structural variants (SVs). We observed extensive presence-absence variation (PAV), distinguishing conserved "core" subgroups (ZmNBS31 and ZmNBS17-19) from highly variable ones (ZmNBS1-10 and ZmNBS43-60), thereby supporting a "core-adaptive" model of resistance gene evolution. Duplication mode analysis revealed subtype-specific preferences: canonical CNL/CN genes largely originated from dispersed duplications, while N-type genes were enriched in tandem duplications. Evolutionary rate analysis showed that whole-genome duplication (WGD)-derived genes exhibited strong purifying selection (low Ka/Ks), whereas tandem and proximal duplications (TD/PD) showed signs of relaxed or positive selection. Structural variants (SVs) were associated with altered motif structures and significantly impacted gene expression. Notably, ZmNBS31 emerged as a conserved, highly expressed gene under both stressed and control conditions, underscoring its potential role in basal immunity. Our findings demonstrate how duplication mechanisms, structural variations and differential selection pressures collectively shape the evolution of the ZmNBS gene family. The identification of ZmNBS31 as a candidate for basal immunity, along with our established "core-adaptive" framework, provides valuable insights and a conceptual foundation for identifying and improving broad-spectrum resistance genes in maize breeding programs.

Indexed as

basal immunityevolutionary patternsgene duplicationstructural variationZmNBS family

Identifiers

PMID41409482
PMCPMC12705624

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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.