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Related Concept Videos

Evolutionary Relationships through Genome Comparisons02:54

Evolutionary Relationships through Genome Comparisons

Genome comparison is one of the excellent ways to interpret the evolutionary relationships between organisms. The basic principle of genome comparison is that if two species share a common feature, it is likely encoded by the DNA sequence conserved between both species. The advent of genome sequencing technologies in the late 20th century enabled scientists to understand the concept of conservation of domains between species and helped them to deduce evolutionary relationships across diverse...
Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes02:16

Comparing Mitochondrial, Chloroplast, and Prokaryotic Genomes

The present-day mitochondrial and chloroplast genomes have retained some of the characteristics of their ancestral prokaryotes and also have acquired new attributes during their evolution within eukaryotic cells. Like prokaryotic genomes, mitochondrial and chloroplast genomes neither bind with histone-like proteins nor show complex packaging into chromosome-like structures, as observed in eukaryotes. Unlike mitotic cell divisions observed in eukaryotic cells, mitochondria and chloroplasts...
Genomics02:02

Genomics

Genomics is the science of genomes: it is the study of all the genetic material of an organism. In humans, the genome consists of information carried in 23 pairs of chromosomes in the nucleus, as well as mitochondrial DNA. In genomics, both coding and non-coding DNA is sequenced and analyzed. Genomics allows a better understanding of all living things, their evolution, and their diversity. It has a myriad of uses: for example, to build phylogenetic trees, to improve productivity and...
Genome Annotation and Assembly03:36

Genome Annotation and Assembly

The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.
Modern Molecular Taxonomy01:29

Modern Molecular Taxonomy

Advancements in molecular biology have revolutionized the identification and characterization of bacteria, with multiple methods leveraging DNA sequencing for enhanced precision. As sequencing technologies improve and costs decline, these approaches are increasingly used in clinical, environmental, and evolutionary studies.Multilocus Sequence Typing (MLST) examines several housekeeping genes, essential chromosomal genes encoding cellular functions, to distinguish strains. Approximately...
Bioreactor Controls-III01:22

Bioreactor Controls-III

Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...

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Related Experiment Video

Updated: Jul 11, 2026

Obtaining High-Quality Transcriptome Data from Cereal Seeds by a Modified Method for Gene Expression Profiling
07:18

Obtaining High-Quality Transcriptome Data from Cereal Seeds by a Modified Method for Gene Expression Profiling

Published on: May 21, 2020

[Strategies and progresses on cereal comparative genomics].

Lei Wang1, Jing-Tang Chen

  • 1College of Agronomy, Hebei Agricultural University, Baoding 071001, China.

Yi Chuan = Hereditas
|September 15, 2007
PubMed
Summary

Comparative genomics leverages model plant data, like Arabidopsis and rice, to understand plant genome evolution, structure, and function. This approach aids in deciphering crop genomes through various mapping and gene analysis strategies.

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Area of Science:

  • Plant genomics
  • Bioinformatics
  • Evolutionary biology

Context:

  • Model plant genome sequencing (Arabidopsis, rice) has advanced rapidly.
  • Comparative genomics offers novel approaches to study plant genomes.
  • Understanding genome evolution, structure, and function is crucial for crop improvement.

Purpose:

  • To summarize research strategies in plant comparative genomics.
  • To review principles, characteristics, feasibility, and progress of various methods.
  • To highlight the utility of model plant data for crop genome elucidation.

Summary:

  • Key strategies include comparative genetic mapping, microcollinearity studies, EST and protein comparisons, comparative QTL mapping, and map-based gene cloning.
  • These methods analyze gene structure, sequence data, and quantitative trait loci (QTLs) across different plant species.
  • The review synthesizes current advancements and principles in the field.

Impact:

  • Facilitates a deeper understanding of plant genome evolution and function.
  • Enables the application of model plant genomic data to diverse crop species.
  • Provides a framework for future research in plant comparative genomics and crop breeding.