Phylogenomic Discordance in Plant Systematics

Phylogenomic Discordance in Plant Systematics

Author: Stefan Wanke

Publisher: Frontiers Media SA

Published: 2023-11-15

Total Pages: 233

ISBN-13: 2832538991

DOWNLOAD EBOOK

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

Published: 2017-05-17

Total Pages: 186

ISBN-13: 2889451283

DOWNLOAD EBOOK

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

Published: 2019-04-08

Total Pages: 426

ISBN-13: 3030108376

DOWNLOAD EBOOK

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

Published: 2013-01-10

Total Pages: 1526

ISBN-13: 1481645315

DOWNLOAD EBOOK

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

Published: 2017-05-11

Total Pages: 186

ISBN-13: 2889451534

DOWNLOAD EBOOK

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

Published: 2024-07-18

Total Pages: 693

ISBN-13: 1036403467

DOWNLOAD EBOOK

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

Published: 2008-01-01

Total Pages: 155

ISBN-13: 3805584911

DOWNLOAD EBOOK

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.


Phylogenetics

Phylogenetics

Author: Ibrokhim Y. Abdurakhmonov

Publisher: BoD – Books on Demand

Published: 2017-09-06

Total Pages: 122

ISBN-13: 953513499X

DOWNLOAD EBOOK

Phylogenetics aims to study the evolutionary relatedness of living organisms in our planet. Its application is extended to the key areas such as evolution, classification and taxonomy of living organisms; ecology, diversity, and conservation biology of agrobiocenosis; monitoring of pathogen spread, outbreaks and source of transmissions, forensic analyses, etc. Historically, phylogenetics studies were prevalently based on morphological features of species that helped to classify the 'Tree of Life' on Earth. Modern phylogenetics studies, however, rely more heavily on DNA sequences. In this Phylogenetics book, we aimed to present readers the latest developments in phylogenetics studies that highlight multi-kingdom systems, reticulated evolution and conservation biology of living organisms as well as 'omics'-based phylogenetics advances.