Highly Contiguous Plant Genome Assembly and Transcriptional Regulation

Highly Contiguous Plant Genome Assembly and Transcriptional Regulation
Author: Kai-Hua Jia
Publisher: Frontiers Media SA
Total Pages: 133
Release: 2024-03-01
Genre: Science
ISBN: 2832542077

Highly contiguous reference genome sequences are a prerequisite for genomics research and for the optimal utilization of plant species. However, whole-genome duplication events and subsequent chromosomal rearrangements and losses shape the complex features and extensive diversity of plant genomes, and hinder their highly contiguous assembly. With the advent of single-molecule, long-read sequencing technologies, such as PacBio High-Fidelity (HiFi) and Oxford Nanopore Technologies (ONT), as well as Bionano genomics and high-throughput chromatin conformation capture (Hi-C), many highly complex chromosome-level genomes have been revealed, even with phased haplotypes. These advanced sequencing technologies, coupled with improvements in assembly methods, have greatly improved the quality of the assembled genomes. Transcriptomics and metabolomics are playing an increasingly important role in research into genetic variation and functional genes, and enable their combination with other omics studies. For example, in studies of plant stress resistance, the application of transcriptomics and metabolomics technologies allows comprehensive and dynamic detection of the spatial and temporal changes in plant genes/metabolite expression under stress, enabling functional genes to be “mined” and the regulatory mechanism underlying stress responses to be analyzed, providing a molecular genetic basis for the breeding of stress-resistant varieties.

The Potato Genome

The Potato Genome
Author: Swarup Kumar Chakrabarti
Publisher: Springer
Total Pages: 332
Release: 2017-12-26
Genre: Science
ISBN: 3319661353

This book describes the historical importance of potato (Solanum tuberosum L.),potato genetic resources and stocks (including S. tuberosum group Phureja DM1-3 516 R44, a unique doubled monoploid homozygous line) used for potato genome sequencing. It also discusses strategies and tools for high-throughput sequencing, sequence assembly, annotation, analysis, repetitive sequences and genotyping-by-sequencing approaches. Potato (Solanum tuberosum L.; 2n = 4x = 48) is the fourth most important food crop of the world after rice, wheat and maize and holds great potential to ensure both food and nutritional security. It is an autotetraploid crop with complex genetics, acute inbreeding depression and a highly heterozygous nature. Further, the book examines the recent discovery of whole genome sequencing of a few wild potato species genomes, genomics in management and genetic enhancement of Solanum species, new strategies towards durable potato late blight resistance, structural analysis of resistance genes, genomics resources for abiotic stress management, as well as somatic cell genetics and modern approaches in true-potato-seed technology. The complete genome sequence provides a better understanding of potato biology, underpinning evolutionary process, genetics, breeding and molecular efforts to improve various important traits involved in potato growth and development.

The Barley Genome

The Barley Genome
Author: Nils Stein
Publisher: Springer
Total Pages: 400
Release: 2018-08-18
Genre: Science
ISBN: 3319925288

This book presents an overview of the state-of-the-art in barley genome analysis, covering all aspects of sequencing the genome and translating this important information into new knowledge in basic and applied crop plant biology and new tools for research and crop improvement. Unlimited access to a high-quality reference sequence is removing one of the major constraints in basic and applied research. This book summarizes the advanced knowledge of the composition of the barley genome, its genes and the much larger non-coding part of the genome, and how this information facilitates studying the specific characteristics of barley. One of the oldest domesticated crops, barley is the small grain cereal species that is best adapted to the highest altitudes and latitudes, and it exhibits the greatest tolerance to most abiotic stresses. With comprehensive access to the genome sequence, barley’s importance as a genetic model in comparative studies on crop species like wheat, rye, oats and even rice is likely to increase.

Gene Prediction

Gene Prediction
Author: Martin Kollmar
Publisher: Humana Press
Total Pages: 284
Release: 2019-05-19
Genre: Science
ISBN: 9781493991723

This volume introduces software used for gene prediction with focus on eukaryotic genomes. The chapters in this book describe software and web server usage as applied in common use-cases, and explain ways to simplify re-annotation of long available genome assemblies. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary computational requirements, step-by-step, readily reproducible computational protocols, and tips on troubleshooting and avoiding known pitfalls. Cutting-edge and thorough, Gene Prediction: Methods and Protocols is a valuable resource for researchers and research groups working on the assembly and annotation of single species or small groups of species. Chapter 3 is available open access under a CC BY 4.0 license via link.springer.com.

Plant Genomes

Plant Genomes
Author: Jean-Nicolas Volff
Publisher: Karger Medical and Scientific Publishers
Total Pages: 155
Release: 2008-01-01
Genre: Medical
ISBN: 3805584911

Recent major advances in the field of comparative genomics and cytogenomics of plants, particularly associated with the completion of ambitious genome projects, have uncovered astonishing facets of the architecture and evolutionary history of plant genomes. The aim of this book was to review these recent developments as well as their implications in our understanding of the mechanisms which drive plant diversity. New insights into the evolution of gene functions, gene families and genome size are presented, with particular emphasis on the evolutionary impact of polyploidization and transposable elements. Knowledge on the structure and evolution of plant sex chromosomes, centromeres and microRNAs is reviewed and updated. Taken together, the contributions by internationally recognized experts present a panoramic overview of the structural features and evolutionary dynamics of plant genomes.This volume of Genome Dynamics will provide researchers, teachers and students in the fields of biology and agronomy with a valuable source of current knowledge on plant genomes.

HiC-Pro: an Optimized and Flexible Pipeline for Hi-C Data Processing

HiC-Pro: an Optimized and Flexible Pipeline for Hi-C Data Processing
Author: Oldenburg Oldenburg Press
Publisher:
Total Pages: 40
Release: 2016-01-29
Genre:
ISBN: 9781523764426

HiC-Pro is an optimized and flexible pipeline for processing Hi-C data from raw reads to normalized contact maps. HiC-Pro maps reads, detects valid ligation products, performs quality controls and generates intra- and inter-chromosomal contact maps. It includes a fast implementation of the iterative correction method and is based on a memory-efficient data format for Hi-C contact maps. In addition, HiC-Pro can use phased genotype data to build allele-specific contact maps. We applied HiC-Pro to different Hi-C datasets, demonstrating its ability to easily process large data in a reasonable time. Source code and documentation are available at http://github.com/nservant/HiC-Pro.

Computational Genomics with R

Computational Genomics with R
Author: Altuna Akalin
Publisher: CRC Press
Total Pages: 463
Release: 2020-12-16
Genre: Mathematics
ISBN: 1498781861

Computational Genomics with R provides a starting point for beginners in genomic data analysis and also guides more advanced practitioners to sophisticated data analysis techniques in genomics. The book covers topics from R programming, to machine learning and statistics, to the latest genomic data analysis techniques. The text provides accessible information and explanations, always with the genomics context in the background. This also contains practical and well-documented examples in R so readers can analyze their data by simply reusing the code presented. As the field of computational genomics is interdisciplinary, it requires different starting points for people with different backgrounds. For example, a biologist might skip sections on basic genome biology and start with R programming, whereas a computer scientist might want to start with genome biology. After reading: You will have the basics of R and be able to dive right into specialized uses of R for computational genomics such as using Bioconductor packages. You will be familiar with statistics, supervised and unsupervised learning techniques that are important in data modeling, and exploratory analysis of high-dimensional data. You will understand genomic intervals and operations on them that are used for tasks such as aligned read counting and genomic feature annotation. You will know the basics of processing and quality checking high-throughput sequencing data. You will be able to do sequence analysis, such as calculating GC content for parts of a genome or finding transcription factor binding sites. You will know about visualization techniques used in genomics, such as heatmaps, meta-gene plots, and genomic track visualization. You will be familiar with analysis of different high-throughput sequencing data sets, such as RNA-seq, ChIP-seq, and BS-seq. You will know basic techniques for integrating and interpreting multi-omics datasets. Altuna Akalin is a group leader and head of the Bioinformatics and Omics Data Science Platform at the Berlin Institute of Medical Systems Biology, Max Delbrück Center, Berlin. He has been developing computational methods for analyzing and integrating large-scale genomics data sets since 2002. He has published an extensive body of work in this area. The framework for this book grew out of the yearly computational genomics courses he has been organizing and teaching since 2015.

Mapping and Sequencing the Human Genome

Mapping and Sequencing the Human Genome
Author: National Research Council
Publisher: National Academies Press
Total Pages: 128
Release: 1988-01-01
Genre: Science
ISBN: 0309038405

There is growing enthusiasm in the scientific community about the prospect of mapping and sequencing the human genome, a monumental project that will have far-reaching consequences for medicine, biology, technology, and other fields. But how will such an effort be organized and funded? How will we develop the new technologies that are needed? What new legal, social, and ethical questions will be raised? Mapping and Sequencing the Human Genome is a blueprint for this proposed project. The authors offer a highly readable explanation of the technical aspects of genetic mapping and sequencing, and they recommend specific interim and long-range research goals, organizational strategies, and funding levels. They also outline some of the legal and social questions that might arise and urge their early consideration by policymakers.

The Tomato Genome

The Tomato Genome
Author: Mathilde Causse
Publisher: Springer
Total Pages: 260
Release: 2016-11-21
Genre: Science
ISBN: 3662533898

This book describes the strategy used for sequencing, assembling and annotating the tomato genome and presents the main characteristics of this sequence with a special focus on repeated sequences and the ancestral polyploidy events. It also includes the chloroplast and mitochondrial genomes. Tomato (Solanum lycopersicum) is a major crop plant as well as a model for fruit development, and the availability of the genome sequence has completely changed the paradigm of the species’ genetics and genomics. The book describes the numerous genetic and genomic resources available, the identified genes and quantitative trait locus (QTL) identified, as well as the strong synteny across Solanaceae species. Lastly, it discusses the consequences of the availability of a high-quality genome sequence of the cultivated species for the research community. It is a valuable resource for students and researchers interested in the genetics and genomics of tomato and Solanaceae.