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October 2, 2025Phytotaxa

Morphological and Molecular Cytogenetics Analyses for a Newly Natural Hybridization in Campeiostachys kamoji and Leymus duthiei of Triticeae

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Authors

DWDandan WuSZSHI-QI ZHOUZYZhao Yu-xin

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Overview

Cytogenetics reveals a pentaploid natural hybrid between Campeiostachys kamoji and Leymus duthiei, suggesting complex evolution.

Key Points

  • The hybrid plant HY2301 is identified as a pentaploid with 35 chromosomes (2n=5x=35), linking two species with differing genomes.
  • Morphological traits of the hybrid mirror characteristics of both parent species, Campeiostachys kamoji and Leymus duthiei, suggesting natural hybridization.
  • Cytogenetic analysis demonstrates abnormal male gamete development, indicating challenges in hybrid fertility and reproduction.
  • Genetic affinity between the St and Y sub-genomes in the hybrid provides insights into evolutionary processes within the Triticeae tribe.

Cite This Study

Wu et al. (2025) studied this question.

synapsesocial.com/papers/68de5da283cbc991d0a209d2https://doi.org/10.11646/phytotaxa.720.3.4
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Analysis wheat wild relatives Thinopyrum intermedium and Roegneria kamoji genomes reveal different polyploid evolution paths2025 · 8 citations
  2. 2Phylogeny and taxonomy of the polyploidy species that contains St genome (Triticeae; Poaceae) based on four nuclear DNA and three chloroplast genes2024
  3. 3Chromosome-specific painting reveals the Y genome origin and chromosome rearrangements of the St genome in Triticeae2024 · 6 citations
  4. 4Bi-parental graph strategy to represent and analyze hybrid plant genomes2024 · 2 citations
  5. 5Multiple hybrid zones involving four <i>Cardamine</i> species and their triploid progeny: watching allopolyploid speciation in action?2025 · 4 citations