developmental systems drift
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Phenotypic invariance-the outcome of purifying selection-is a hallmark of biological importance. However, invariant phenotypes might be controlled by diverged genetic systems in different species. Here, we explore how an important and invariant phenotype-the development of sexually differentiated individuals-is controlled in over two dozen species in the frog family Pipidae. We uncovered evidence in different species for 1) an ancestral W chromosome that is not found in many females and is found in some males, 2) independent losses and 3) autosomal segregation of this W chromosome, 4) changes in male versus female heterogamy, and 5) substantial variation among species in recombination suppression on sex chromosomes. We further provide evidence of, and evolutionary context for, the origins of at least seven distinct systems for regulating sex determination among three closely related genera. These systems are distinct in their genomic locations, evolutionary origins, and/or male versus female heterogamy. Our findings demonstrate that the developmental control of sexual differentiation changed via loss, sidelining, and empowerment of a mechanistically influential gene, and offer insights into novel factors that impinge on the diverse evolutionary fates of sex chromosomes.
- MeSH
- biologická evoluce MeSH
- fenotyp MeSH
- genetický drift MeSH
- molekulární evoluce MeSH
- Pipidae genetika fyziologie MeSH
- pohlavní chromozomy genetika MeSH
- procesy určující pohlaví MeSH
- rekombinace genetická MeSH
- selekce (genetika) MeSH
- sexuální diferenciace MeSH
- zvířata MeSH
- Check Tag
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
- Research Support, U.S. Gov't, Non-P.H.S. MeSH
... Chapter 26 The Genetic Control of Behavior 710 Chapter 27 The Genetic Control of the Vertebrate Immune System ... ... Repair 383 Excision Repair 383 Mismatch Repair 385 Postreplication Repair 386 The Error-Prone Repair System ... ... Drosophila as a Model Organism 679 Caenorhabditis as a Model Organism 679 Genetic Analysis of Developmental ... ... 718 -- 27 THE GENETIC CONTROL OF THE VERTEBRATE IMMUNE SYSTEM 728 AIDS Emphasizes the Vital Role of the ... ... Immune System 728 The Immune Response: An Overview 729 Components of the Mammalian Immune System 730 ...
2nd ed. xviii, 876 s. : il.
... 204 33 Plant Nutrition 711 -- 34 Plant Reproduction and Development 727 -- UNIT THREE 35 Control Systems ... ... DNA Technology 369 42 Animal Reproduction 937 -- 43 Animal Development 963 -- UNIT FOUR 44 Nervous Systems ... ... -- Ribosomes build a cell\'s proteins 118 -- Many organelles are related through the endomembrane system ... ... 801 -- Vertebrate digestive systems exhibit many evolutionary adaptations associated with diet 808 - ... ... many functions of the vertebrate endocrine system 922 -- The vertebrate endocrine system coordinates ...
Fourth edition 1206, 32 stran : ilustrace ; 29 cm
... ix -- TABLE OF CONTENTS -- CHAPTER 1: MULTIPLE LEARNING PROBLEMS ARE 1 SOLVED BY SENSORY-MOTOR SYSTEMS ... ... Eye Movements as a Model Sensory-Motor System 2 -- 1.3. ... ... Different Coordinates for Unconditioned and Conditioned Movement Systems -- A. ... ... Adaptive Step Gain and Pulse Gain: Correcting 198 -- Post-Saccadic Drift -- 8.5. ... ... Multiple Parietal and Frontal Eye Field Vector Systems 273 -- 11.11. ...
Advances in psychology ; 30
xvi, 336 stran : ilustrace ; 23 cm
- Konspekt
- Psychologie
- NLK Obory
- oftalmologie
- psychologie, klinická psychologie
- NLK Publikační typ
- kolektivní monografie
