Related Experiment Video
Updated: Feb 19, 2026
10:08
Genetic Mapping of Thermotolerance Differences Between Species of Saccharomyces Yeast via Genome-Wide Reciprocal Hemizygosity Analysis
Published on: August 12, 2019
17.7K
Hybrids and horizontal transfer: introgression allows adaptive allele discovery
Roswitha Schmickl1,2, Sarah Marburger3, Sian Bray3
1Institute of Botany, The Czech Academy of Sciences, Zámek 1, 252 43 Průhonice, Czech Republic.
Journal of Experimental Botany
|November 3, 2017
Summary
Evolutionary insights reveal how genetic transfers, like adaptive introgression and horizontal gene flow, drive adaptation across species. Understanding these mechanisms aids plant breeding and synthetic biology.
Area of Science:
- Evolutionary biology
- Genomics
- Synthetic biology
Background:
- Evolutionary processes generate diverse biological solutions.
- Understanding these mechanisms informs plant breeding and synthetic biology.
- Population genomics aids in identifying adaptive alleles.
Purpose of the Study:
- To discuss genetic transfer mechanisms in evolution.
- To highlight adaptive introgression and horizontal gene flow.
- To illustrate discoveries across different kingdoms.
Main Methods:
- Population genomic approaches for detecting candidate alleles.
- Functional testing of identified alleles.
- Comparative analysis of genetic transfer events.
Main Results:
- Population genomics effectively detects alleles mediating adaptation.
- Genetic transfers, including adaptive introgression and horizontal gene flow, are significant evolutionary forces.
- Examples of discoveries span across various biological kingdoms.
Conclusions:
- Genetic transfer mechanisms are crucial for evolutionary adaptation.
- Studying these processes offers valuable insights for biotechnology and crop improvement.
- Further research into cross-kingdom gene flow can yield novel applications.
Related Concept Videos
01:27Horizontal Gene Transfer
2.4K
Horizontal gene transfer (HGT) is a process where genetic material moves between organisms within the same generation, unlike vertical gene transfer, which occurs from parent to offspring. HGT plays a crucial role in microbial evolution, adaptation, and survival, particularly in shared environments like the human gut.Mobile genetic elements such as plasmids, prophages, integrons, insertion sequences, and transposons facilitate this process. HGT occurs through three primary mechanisms:...
2.4K
02:18Types of Genetic Transfer Between Organisms
31.2K
Genetic transfer occurs when genetic information is passed from one organism to another. It occurs via two mechanisms: vertical gene transfer and horizontal gene transfer. Vertical gene transfer occurs when genetic information is transferred from one generation to the next, which happens much more frequently than horizontal gene transfer. Both sexual and asexual reproduction are forms of vertical gene transfer, where one or more organisms pass some or all of their genome onto their progeny.
31.2K
02:18Types of Genetic Transfer Between Organisms
6.5K
6.5K
02:29Hybrid Zones
22.0K
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.
22.0K
02:08Gene Conversion
10.7K
Other than maintaining genome stability via DNA repair, homologous recombination plays an important role in diversifying the genome. In fact, the recombination of sequences forms the molecular basis of genomic evolution. Random and non-random permutations of genomic sequences create a library of new amalgamated sequences. These newly formed genomes can determine the fitness and survival of cells. In bacteria, homologous and non-homologous types of recombination lead to the evolution of new...
10.7K
02:08Gene Conversion
3.1K
3.1K