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Genome Annotation and Assembly

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.

Genomics

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...

Next-generation Sequencing

Next-generation Sequencing

The first human genome sequencing project cost $2.7 billion and was declared complete in 2003, after 15 years of international cooperation and collaboration between several research teams and funding agencies. Today, with the advent of next-generation sequencing technologies, the cost and time of sequencing a human genome have dropped over 100 fold.
Next-Generation Sequencing Methods
Although all next-generation methods use different technologies, they all share a set of standard features....

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Related Experiment Video

Updated: Nov 16, 2025

Agrobacterium-Mediated Genetic Transformation, Transgenic Production, and Its Application for the Study of Male Reproductive Development in Rice

Agrobacterium-Mediated Genetic Transformation, Transgenic Production, and Its Application for the Study of Male Reproductive Development in Rice

Published on: October 6, 2020

Current status and impending progress for cassava structural genomics.

Jessica B Lyons^1,2, Jessen V Bredeson¹, Ben N Mansfeld³

¹Department of Molecular & Cell Biology, University of California, Berkeley, CA, 94720, USA.

Plant Molecular Biology

|February 19, 2021

Summary

This summary is machine-generated.

Recent advances in genome sequencing have enabled a clearer understanding of the highly heterozygous cassava (Manihot esculenta) genome. This review highlights key genomic resources and future prospects for this vital staple crop.

Keywords:

Cassava Crop improvement Genomics Heterozygous genomes Phased genomes

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Area of Science:

Agricultural Science
Genomics
Plant Biology

Background:

Cassava (Manihot esculenta) is a crucial staple crop in tropical regions.
Genomic studies offer pathways for improving cassava's nutritional and agronomic traits.
The cassava genome is known for its high heterozygosity, posing sequencing challenges.

Purpose of the Study:

To review recent advancements in cassava genome assembly.
To highlight essential cassava genomic resources.
To provide a forward-looking perspective on cassava genomics.

Main Methods:

Review of current literature on cassava genome sequencing.
Analysis of new long-read sequencing technologies.
Synthesis of existing cassava genomic data.

Main Results:

Recent long-read sequencing technologies are overcoming previous limitations in assembling complex genomes.
New insights into the extent and context of cassava genome heterozygosity are emerging.
Key cassava genomic resources are now more accessible.

Conclusions:

The genomics community can now better address challenging genomes like cassava's.
Understanding cassava's genome is vital for its domestication history and future improvement.
This review documents the current state and future directions of cassava genomics.