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Understanding of the origin of species and their adaptability to new environments is one of the main questions in biology. This is fueled by the ongoing debate on species concepts and facilitated by the availability of an unprecedented large number of genomic resources. Genomes are organized into chromosomes, where significant variations in number and morphology are observed among species due to large-scale structural variants such as inversions, translocations, fusions, and fissions. This genomic reshuffling provides, in the long term, new chromosomal forms on which natural selection can act upon, contributing to the origin of biodiversity. This book contains mainly articles, reviews, and an opinion piece that explore numerous aspects of genome plasticity among taxa that will help in understanding the dynamics of genome composition, the evolutionary relationships between species and, in the long run, speciation.
Understanding of the origin of species and their adaptability to new environments is one of the main questions in biology. This is fueled by the ongoing debate on species concepts and facilitated by the availability of an unprecedented large number of genomic resources. Genomes are organized into chromosomes, where significant variations in number and morphology are observed among species due to large-scale structural variants such as inversions, translocations, fusions, and fissions. This genomic reshuffling provides, in the long term, new chromosomal forms on which natural selection can act upon, contributing to the origin of biodiversity. This book contains mainly articles, reviews, and an opinion piece that explore numerous aspects of genome plasticity among taxa that will help in understanding the dynamics of genome composition, the evolutionary relationships between species and, in the long run, speciation.
Meiosis is a special type of cell division that allows the generation of haploid gametes and is a key process for sexual reproduction of animals, plants and fungi. Haploidization requires that meiotic cells undergo a series of unique processes; namely, pairing, synapsis, recombination and segregation of homologous chromosomes. This involves profound meiosis-specific changes in the protein composition and architecture of homologous chromosomes as well as of the condensation and folding of chromatin that require a critical timing and regulation. Despite this enormous complexity, different organisms may achieve haploidization through common molecular mechanisms. A major goal of this article col...
The annual Evolutionary Biology Meetings in Marseille aim to bring together leading scientists, promoting an exchange of state-of-the-art knowledge and the formation of inter-group collaborations. This book presents the most representative contributions to the 13th meeting, which was held in September 2009. It comprises 21 chapters, which are organized into the following three categories: • Evolutionary Biology Concepts • Genome/Molecular Evolution • Morphological Evolution/Speciation This book offers an up-to-date overview of evolutionary biology concepts and their use in the biology of the 21st century.
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Gregorio Herrera was born in about 1720 in Monterrey, Nuevo Leon, Mexico. He married Melchora Ramon 17 November 1751 in San Jaun Bautista, Nuevo Leon, Mexico. They had eight children. Some of their children and grandchildren migrated to Texas. Descendants and relatives lived mainly in Texas and Mexico.
Musa is one of three genera in the family of Musaceae. Over 50 species of Musa exist, including bananas and plantains. This book assembles the latest information on the genomic research of this genus. A group of leading experts in Musa genetics, genomics, and breeding provide basic as well as advanced information for those interested in learning more about the banana genome. The accessible style is easily understood by students and researchers, making the book an ideal springboard for those looking to do expanded research into this crop.
THE UPDATED NEW EDITION OF THE POPULAR COLLECTION OF HIGH-RESOLUTION CHROMOSOME PHOTOGRAPHS—FOR GENETICISTS, MAMMOLOGISTS, AND BIOLOGISTS INTERESTED IN COMPARATIVE GENOMICS, SYSTEMATICS, AND CHROMOSOME STRUCTURE Filled with a visually exquisite collection of the banded metaphase chromosome karyotypes from some 1,000 species of mammals, the Atlas of Mammalian Chromosomes offers an unabridged compendium of the state of this genomic art form. The Atlas??contains the best karyotype produced, the common and Latin name of the species, the published citation, and identifies the contributing authors. Nearly all karyotypes are G-banded, revealing the chromosomal bar codes of homologous segments amo...