Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

Evolutionary Processes in Microbes01:26

Evolutionary Processes in Microbes

Microbial evolution occurs rapidly due to short generation times and a variety of genetic processes, including horizontal gene transfer, mutation, recombination, and genetic drift. These mechanisms collectively enable microbes to adapt swiftly to changing environments.Horizontal gene transfer (HGT) allows genes to move between different species and occurs through three main mechanisms: conjugation, transformation, and transduction. Conjugation involves direct cell-to-cell contact for DNA...
Gene Evolution - Fast or Slow?02:05

Gene Evolution - Fast or Slow?

The genomes of eukaryotes are punctuated by long stretches of sequence which do not code for proteins or RNAs. Although some of these regions do contain crucial regulatory sequences, the vast majority of this DNA serves no known function. Typically, these regions of the genome are the ones in which the fastest change, in evolutionary terms, is observed, because there is typically little to no selection pressure acting on these regions to preserve their sequences.
In contrast, regions which code...
Gene Evolution - Fast or Slow?02:05

Gene Evolution - Fast or Slow?

The genomes of eukaryotes are punctuated by long stretches of sequence which do not code for proteins or RNAs. Although some of these regions do contain crucial regulatory sequences, the vast majority of this DNA serves no known function. Typically, these regions of the genome are the ones in which the fastest change, in evolutionary terms, is observed, because there is typically little to no selection pressure acting on these regions to preserve their sequences.
In contrast, regions which code...
Evolution of New Traits in Microbes01:24

Evolution of New Traits in Microbes

Microorganisms evolve rapidly due to their large population sizes and short generation times, often exhibiting measurable changes within days under laboratory conditions. Natural selection acts on standing genetic variation, enabling the retention and amplification of beneficial traits that confer fitness advantages in changing environments.Adaptive Pigment Regulation in RhodobacterIn Rhodobacter, a genus of purple non-sulfur bacteria, light-harvesting pigments such as bacteriochlorophyll and...
Microbial Phylogeny01:28

Microbial Phylogeny

Understanding the evolutionary relationships among microorganisms is fundamental to microbial ecology and taxonomy. Phylogenetic trees are essential tools for inferring these relationships, relying primarily on comparative analyses of molecular sequences such as DNA, RNA, or proteins. In microbial studies, these trees typically depict the evolutionary paths of diverse bacterial and archaeal species by mapping genetic differences accumulated over time.Phylogenetic trees are composed of tips,...
Evolution of Microbial Genome01:08

Evolution of Microbial Genome

Microbial genome evolution is a highly dynamic process shaped by continual gene gain and loss across species and strains. This genomic flexibility allows microorganisms to adapt rapidly to environmental pressures and interactions with other organisms. Central to understanding this diversity is the distinction between the core and pan genomes.The core genome comprises the genes shared by all sampled strains of a species, representing essential functions needed for fundamental cellular processes.

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Using Landscape Genomics to Define Species Distributions, Delineate Seed Zones, and Predict Genomic Offset to Future Climate for the Interior Spruce Hybrid Complex (Picea glauca, Picea engelmannii, and Their Hybrids).

Global change biology·2026
Same author

An X-linked sex determination mechanism in cannabis and hop.

Nature communications·2026
Same author

Genomic ancestry predicts rapid responses to drought across spatiotemporal scales.

Proceedings of the National Academy of Sciences of the United States of America·2026
Same author

Network ontology transcript annotation identifies genetic signals underlying sex determination.

Scientific reports·2026
Same author

The genomic basis of adaptive leaf variation in the Galápagos giant daisies.

Nature communications·2026
Same author

Rapid evolution predicts demographic recovery after extreme drought.

Science (New York, N.Y.)·2026
Same journal

The life history of recessive deleterious alleles as seen through the eyes of a honey bee (Apis mellifera).

Molecular biology and evolution·2026
Same journal

Severe bottleneck of ancient Homo populations: Insights from computational modeling and relevant fossil evidence.

Molecular biology and evolution·2026
Same journal

Population Epigenetics: Deciphering DNA Methylation Diversity and its Implications for Health, Disease, and Evolution.

Molecular biology and evolution·2026
Same journal

Genomic signature of repeated transitions to diurnality in spiders.

Molecular biology and evolution·2026
Same journal

Phylogenomic blind spots: The limits of UCE and BUSCO loci in the presence of gene flow.

Molecular biology and evolution·2026
Same journal

seqLens: Optimizing Language Models for Genomic Predictions.

Molecular biology and evolution·2026
See all related articles

Related Experiment Video

Updated: May 31, 2026

Scanning Electron Microscopy (SEM) Protocols for Problematic Plant, Oomycete, and Fungal Samples
10:57

Scanning Electron Microscopy (SEM) Protocols for Problematic Plant, Oomycete, and Fungal Samples

Published on: February 3, 2017

Molecular evolution across the Asteraceae: micro- and macroevolutionary processes.

Nolan C Kane1, Michael S Barker, Shing H Zhan

  • 1Department of Botany, The Biodiversity Research Centre, University of British Columbia, Vancouver, Canada. nkane@biodiversity.ubc.ca

Molecular Biology and Evolution
|June 23, 2011
PubMed
Summary
This summary is machine-generated.

The Asteraceae family

More Related Videos

A Bioinformatics Pipeline for Investigating Molecular Evolution and Gene Expression using RNA-seq
07:09

A Bioinformatics Pipeline for Investigating Molecular Evolution and Gene Expression using RNA-seq

Published on: May 28, 2021

Whole-mount Clearing and Staining of Arabidopsis Flower Organs and Siliques
09:17

Whole-mount Clearing and Staining of Arabidopsis Flower Organs and Siliques

Published on: April 12, 2018

Related Experiment Videos

Last Updated: May 31, 2026

Scanning Electron Microscopy (SEM) Protocols for Problematic Plant, Oomycete, and Fungal Samples
10:57

Scanning Electron Microscopy (SEM) Protocols for Problematic Plant, Oomycete, and Fungal Samples

Published on: February 3, 2017

A Bioinformatics Pipeline for Investigating Molecular Evolution and Gene Expression using RNA-seq
07:09

A Bioinformatics Pipeline for Investigating Molecular Evolution and Gene Expression using RNA-seq

Published on: May 28, 2021

Whole-mount Clearing and Staining of Arabidopsis Flower Organs and Siliques
09:17

Whole-mount Clearing and Staining of Arabidopsis Flower Organs and Siliques

Published on: April 12, 2018

Area of Science:

  • Evolutionary genomics
  • Plant diversification
  • Phylogenetics

Background:

  • Asteraceae (Compositae) is a vast plant family (~20,000 species, 10% of angiosperms).
  • This family offers a unique model for studying evolutionary genomics of lineage radiation and diversification.
  • Species span diverse forms (herbs, shrubs, trees) across all continents except Antarctica.

Purpose of the Study:

  • To assess neutral and nonneutral evolutionary processes across the Asteraceae family.
  • To identify candidate genes under selection within different Asteraceae lineages.
  • To compare evolutionary rates at silent and coding sites across Gene Ontology functional categories.

Main Methods:

  • Utilized publicly available expressed sequence tags from 22 Asteraceae species.
  • Employed bioinformatic tools to detect genes under selection.
  • Analyzed molecular evolution at silent and coding sites across various timescales.

Main Results:

  • Molecular change patterns in Asteraceae are highly consistent on a macroevolutionary timescale.
  • Identified specific gene classes potentially driving the radiation of this diverse plant family.
  • Observed similar evolutionary patterns in nuclear and chloroplast genes across six other plant families.

Conclusions:

  • Macroevolutionary patterns of molecular change in Asteraceae are more consistent than microevolutionary analyses predict.
  • Certain gene classes are key drivers of Asteraceae diversification.
  • The identified evolutionary patterns are common across the plant kingdom.