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Related Concept Videos

Hybrid Zones02:29

Hybrid Zones

Hybrid zones are narrow regions where two closely related species interact, mate, and produce hybrids. Relative to either parent species, hybrids may possess distinct phenotypic or genetic differences that impact their survival and reproductive success. The genetic variances introduced by hybridization influence species diversity and speciation processes within the hybrid zone.
In-situ Hybridization02:31

In-situ Hybridization

In situ hybridization (ISH) is a technique used to detect and localize specific DNA or RNA molecules in cells, tissue, or tissue sections using a labeled probe. The technique was first used in 1969 for the investigation of nucleic acids. It is currently an essential tool in scientific research and clinical settings, especially for diagnostic purposes.
Types of probes and labels
A probe is a complementary strand of DNA or RNA that binds to corresponding nucleotide sequences in a cell. Many...
Red Algae01:23

Red Algae

Red algae, also known as rhodophytes, are primarily found in marine environments, though some species inhabit freshwater and terrestrial ecosystems. These organisms exist in both unicellular and multicellular forms, with some multicellular varieties reaching macroscopic sizes.As phototrophic organisms, red algae contain chlorophyll a; however, their chloroplasts lack chlorophyll b. Instead, they possess phycobiliproteins, which serve as major light-harvesting pigments, similar to those found in...
What is a Species?01:17

What is a Species?

Overview

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Long-term surveillance reveals hybridization by nuclear reassortment and intercontinental spread as major evolutionary drivers in wheat yellow rust.

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Related Experiment Video

Updated: May 19, 2026

Hybridization in situ of Salivary Glands, Ovaries, and Embryos of Vector Mosquitoes
10:58

Hybridization in situ of Salivary Glands, Ovaries, and Embryos of Vector Mosquitoes

Published on: June 28, 2012

Somatic hybridization in the Uredinales.

Robert F Park1, Colin R Wellings

  • 1Plant Breeding Institute, The University of Sydney, Sydney, New South Wales 2570, Australia. robert.park@sydney.edu.au

Annual Review of Phytopathology
|August 28, 2012
PubMed
Summary

Somatic hybridization generates genetic diversity in rust fungi, impacting wheat pathogens. This process can create new virulence combinations, affecting crop resistance and breeding strategies.

Area of Science:

  • Plant Pathology
  • Mycology
  • Genetics

Background:

  • Rust fungi are widespread plant pathogens affecting crops like wheat.
  • Genetic diversity in rust fungi, crucial for adaptation, arises from mutations and introductions, especially without sexual reproduction.

Purpose of the Study:

  • To investigate the role of somatic hybridization in generating genetic diversity in rust fungi.
  • To understand the mechanisms and implications of somatic hybridization in plant-pathogenic rusts.

Main Methods:

  • Analysis of long-term surveys (up to 90 years) of wheat rust pathogen variability.
  • Review of laboratory studies and field evidence for somatic hybridization across various rust species and hosts.
  • Examination of proposed mechanisms including hyphal fusion, nuclear exchange, and parasexuality.

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Last Updated: May 19, 2026

Hybridization in situ of Salivary Glands, Ovaries, and Embryos of Vector Mosquitoes
10:58

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Published on: June 28, 2012

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A Whole Mount In Situ Hybridization Method for the Gastropod Mollusc Lymnaea stagnalis

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Main Results:

  • Somatic hybridization is a significant source of genetic diversity in rust fungi, alongside mutation and exotic introductions.
  • Evidence for somatic hybridization exists in natural populations across diverse rust species and hosts, including wheat.
  • Hybridization events have led to new virulence combinations, overcoming plant resistance.

Conclusions:

  • Somatic hybridization plays a critical role in the evolution and adaptation of rust fungi.
  • Understanding somatic hybridization is essential for developing durable resistance strategies in crop breeding.
  • Further research is needed to elucidate the precise mechanisms of somatic hybridization in rust fungi.