Phylogenomic Discordance in Plant Systematics

Phylogenomic Discordance in Plant Systematics
Author: Stefan Wanke
Publisher: Frontiers Media SA
Total Pages: 233
Release: 2023-11-15
Genre: Science
ISBN: 2832538991

Phylogenetics often uncovers contradicting hypotheses regarding the relationships within the same group of organisms, a phenomenon known since the beginning of the molecular systematics era. While, historically, single marker-based analyses produced discordance, nowadays entire cellular genomes or portions of the same genomic compartment conflict with others or the rest, respectively. In contrast to the beginning of the molecular systematics era, when adding markers and taxa offered a way out of systematic errors, genome inference-based incongruences cannot be addressed and explained easily. Disagreeing phylogenomic hypotheses might originate from various evolutionary processes, including but not limited to hybridization or incomplete lineage sorting, thereby leading to gene tree-versus species tree-associated discrepancies. Today, this can be expanded to genome discordance, where phylogenomic signals of organellar genomes (plastid, mitochondrial) and the nuclear genome disagree due to intrinsically different coalescent paths or phenomena like organelle capture.

Recent Advances and Challenges on Big Data Analysis in Neuroimaging

Recent Advances and Challenges on Big Data Analysis in Neuroimaging
Author: Jian Kang
Publisher: Frontiers Media SA
Total Pages: 186
Release: 2017-05-17
Genre:
ISBN: 2889451283

Big data is revolutionizing our ability to measure and study the human brain. New technology increases the resolution of images that are being study as well as enables researchers to study the brain as it functions. These technological advances are combined with efforts to collect neuroimaging data on large numbers of subjects, in some cases longitudinally. This combination of advances in measurement and scope of studies requires novel development in the statistical analysis. Fast, scalable, robust and accurate models and approaches need to be developed to make headway on these problems. This volume represents a unique collection of researchers providing deep insights on the statistical analysis of big neuroimaging data.

Bioinformatics and Phylogenetics

Bioinformatics and Phylogenetics
Author: Tandy Warnow
Publisher: Springer
Total Pages: 426
Release: 2019-04-08
Genre: Computers
ISBN: 3030108376

This volume presents a compelling collection of state-of-the-art work in algorithmic computational biology, honoring the legacy of Professor Bernard M.E. Moret in this field. Reflecting the wide-ranging influences of Prof. Moret’s research, the coverage encompasses such areas as phylogenetic tree and network estimation, genome rearrangements, cancer phylogeny, species trees, divide-and-conquer strategies, and integer linear programming. Each self-contained chapter provides an introduction to a cutting-edge problem of particular computational and mathematical interest. Topics and features: addresses the challenges in developing accurate and efficient software for the NP-hard maximum likelihood phylogeny estimation problem; describes the inference of species trees, covering strategies to scale phylogeny estimation methods to large datasets, and the construction of taxonomic supertrees; discusses the inference of ultrametric distances from additive distance matrices, and the inference of ancestral genomes under genome rearrangement events; reviews different techniques for inferring evolutionary histories in cancer, from the use of chromosomal rearrangements to tumor phylogenetics approaches; examines problems in phylogenetic networks, including questions relating to discrete mathematics, and issues of statistical estimation; highlights how evolution can provide a framework within which to understand comparative and functional genomics; provides an introduction to Integer Linear Programming and its use in computational biology, including its use for solving the Traveling Salesman Problem. Offering an invaluable source of insights for computer scientists, applied mathematicians, and statisticians, this illuminating volume will also prove useful for graduate courses on computational biology and bioinformatics.

Issues in Biological and Life Sciences Research: 2012 Edition

Issues in Biological and Life Sciences Research: 2012 Edition
Author:
Publisher: ScholarlyEditions
Total Pages: 1526
Release: 2013-01-10
Genre: Science
ISBN: 1481645315

Issues in Biological and Life Sciences Research: 2012 Edition is a ScholarlyEditions™ eBook that delivers timely, authoritative, and comprehensive information about Life Science Research. The editors have built Issues in Biological and Life Sciences Research: 2012 Edition on the vast information databases of ScholarlyNews.™ You can expect the information about Life Science Research in this eBook to be deeper than what you can access anywhere else, as well as consistently reliable, authoritative, informed, and relevant. The content of Issues in Biological and Life Sciences Research: 2012 Edition has been produced by the world’s leading scientists, engineers, analysts, research institutions, and companies. All of the content is from peer-reviewed sources, and all of it is written, assembled, and edited by the editors at ScholarlyEditions™ and available exclusively from us. You now have a source you can cite with authority, confidence, and credibility. More information is available at http://www.ScholarlyEditions.com/.

A Broader View for Plant EvoDevo: Novel Approaches for Diverse Model Systems

A Broader View for Plant EvoDevo: Novel Approaches for Diverse Model Systems
Author: Verónica S. Di Stilio
Publisher: Frontiers Media SA
Total Pages: 186
Release: 2017-05-11
Genre:
ISBN: 2889451534

This collection attempts to integrate work pertaining to a fundamental question in plant evolution: What are the molecular underpinnings for the origin of different plant forms? Among the many facets this question touches are the transition to land, the emergence of vascular plants, the origin of the seed and the origin and diversification of floral form. We aim to bring to the forefront the most salient and original plant systems and approaches within an inclusive phylogenetic context that encompasses representatives of the major lineages of land plants.

Traditional Medicines in Drug Discovery and Development

Traditional Medicines in Drug Discovery and Development
Author: Varughese George
Publisher: Cambridge Scholars Publishing
Total Pages: 693
Release: 2024-07-18
Genre: Medical
ISBN: 1036403467

This comprehensive book, comprising 20 chapters contributed by respected academics in their respective fields, highlights the immense contribution of traditional medicine to the discovery and development of modern drugs. Each chapter provides in-depth details, stimulating experts to further explore the flora used in traditional medicines and inspiring younger investigators to delve into the mysterious world of secondary metabolites in their quest for novel molecules. This book is of immense value to scientists, academicians, researchers, and students alike, making it a valuable addition to personal collections and libraries.

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.

Fruit Flies (Tephritidae)

Fruit Flies (Tephritidae)
Author: Martin Aluja
Publisher: CRC Press
Total Pages: 1180
Release: 1999-12-20
Genre: Science
ISBN: 9780849312755

Fruit flies (Diptera: Tephritidae) are among the most destructive agricultural pests in the world, eating their way through acres and acres of citrus and other fruits at an alarming rate and forcing food and agriculture agencies to spend millions of dollars in control and management measures. But until now, the study of fruit flies has been traditionally biased towards applied aspects (e.g., management, monitoring, and mass rearing)-understandable, given the tremendous economic impact of this species. This work is the first that comprehensively addresses the study of the phylogeny and the evolution of fruit fly behavior. An international group of highly renowned scientists review the current state of knowledge and include considerable new findings on various aspects of fruit fly behavior, phylogeny and related subjects. In the past, the topics of phylogeny and evolution of behavior were barely addressed, and when so, often superficially. Fruit Flies (Tephritidae): Phylogeny and Evolution of Behavior is a definitive treatment, covering all behaviors in a broad range of tephritids. This volume is divided into eight sections: