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Evolution, Composition and Regulation of Supernumerary B Chromosomes

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ISBN: 9783038977865 9783038977872 Year: Pages: 254 DOI: 10.3390/books978-3-03897-787-2 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology
Added to DOAB on : 2019-08-28 11:21:28
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Abstract

Supernumerary B chromosomes (Bs) are dispensable genetic elements found in thousands of species of plants and animals, and some fungi. Since their discovery more than a century ago, they have been a source of puzzlement, as they only occur in some members of a population and are absent from others. When they do occur, they are often harmful, and in the absence of “selfishness”, based on mechanisms of mitotic and meiotic drive, there appears to be no obvious reason for their existence. Cytogeneticists have long wrestled with questions about the biological existence of these enigmatic elements, including their lack of any adaptive properties, apparent absence of functional genes, their origin, sequence organization, and co-evolution as nuclear parasites. Emerging new technologies are now enabling researchers to step up a gear, to look enthusiastically beyond the previous limits of the horizon, and to uncover the secrets of these “silent” chromosomes. This book provides a comprehensive guide to theoretical advancements in the field of B chromosome research in both animal and plant systems.

Keywords

repetitive elements --- RNA-Seq --- genomics --- evolution --- cytogenetics --- supernumerary elements --- extra chromosomes --- B chromosomes --- transmission --- drive --- host/parasite interaction --- supernumerary chromosomes --- karyotype evolution --- genome instability --- supernumerary chromosomes --- heterochromatin --- parent-of-origin effects --- paternal X chromosome --- maternal X chromosome --- controlling element --- teleost --- population analysis --- whole genome resequencing --- DNA copy number variation --- ribosomal DNA --- B chromosomes --- FISH (fluorescence in situ hybridisation) --- GISH (genomic in situ hybridisation) --- Prospero autumnale complex --- supernumerary chromosomal segments (SCS) evolution --- tandem repeats --- Drosophila --- supernumerary --- satellite DNA --- sSMC --- B chromosomes --- dot-like (micro) Bs --- karyotypic characteristics --- ?s --- B morphotypes --- Apodemus peninsulae --- maize B chromosome --- centromere --- inactivation --- reactivation --- de novo centromere formation --- epigenetics --- supernumerary chromosomes --- additional chromosomes --- chromosome polymorphism --- evolution --- B chromosomes --- karyotypes --- genome evolution --- interphase nucleus --- mammals --- genes --- repetitive DNA --- transcription of heterochromatin --- B chromosomes --- grasshoppers --- DNA composition --- repeat clusters --- euchromatin degradation --- microdissected DNA probes --- B chromosome --- satellite DNA --- mobile element --- organelle DNA --- chromosome evolution --- fluorescent in situ hybridization --- Orthoptera --- satellite DNA --- supernumerary chromosome --- RepeatExplorer --- supernumerary chromosomes --- B chromosomes --- next-generation sequencing --- coverage ratio analysis --- n/a --- B chromosome --- transmission --- origin --- drive --- n/a

Stochastic Processes with Applications

Authors: --- ---
ISBN: 9783039217281 9783039217298 Year: Pages: 284 DOI: 10.3390/books978-3-03921-729-8 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Mathematics
Added to DOAB on : 2019-12-09 16:10:12
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Stochastic processes have wide relevance in mathematics both for theoretical aspects and for their numerous real-world applications in various domains. They represent a very active research field which is attracting the growing interest of scientists from a range of disciplines.This Special Issue aims to present a collection of current contributions concerning various topics related to stochastic processes and their applications. In particular, the focus here is on applications of stochastic processes as models of dynamic phenomena in research areas certain to be of interest, such as economics, statistical physics, queuing theory, biology, theoretical neurobiology, and reliability theory. Various contributions dealing with theoretical issues on stochastic processes are also included.

Keywords

fusion estimation --- sensor networks --- random parameter matrices --- multiplicative noises --- random delays --- realized volatility --- forecast combinations --- structural breaks --- arithmetic progressions --- first Chebyshev function --- products of primes --- regularly varying functions --- slowly varying functions --- mixed Gaussian process --- small deviations --- exact asymptotics --- loan interest rate regulation --- diffusion model --- first passage time (FPT) --- continuous-time Markov chains --- catastrophes --- bounds --- birth-death process --- rate of convergence --- double-ended queues --- time-non-homogeneous birth-death processes --- catastrophes --- repairs --- transient probabilities --- periodic intensity functions --- time-non-homogeneous jump-diffusion processes --- transition densities --- first-passage-time --- lognormal diffusion process --- exogenous factors --- growth curves --- maximum likelihood estimation --- asymptotic distribution --- first-passage time --- inverse first-passage problem --- diffusion --- mixture of Gaussian laws --- rate of convergence --- total variation distance --- Wasserstein distance --- weighted quadratic variation --- non-Markovian queue --- general bulk service --- multiple vacation --- breakdown and repair --- stand-by server --- re-service --- discrete time stochastic model --- first-passage time --- time between inspections --- host-parasite interaction --- nematode infection --- nonhomogeneous Poisson process --- seasonal environment --- Strang–Marchuk splitting approach --- Cohen and Grossberg neural networks --- random impulses --- mean square stability --- fractional differential-difference equations --- fractional queues --- fractional birth-death processes --- busy period --- two-dimensional signature --- multi-state network --- totally positive of order 2 --- stochastic order --- stochastic process --- reliability --- stochastic orders --- scale family of distributions --- proportional hazard rates --- differential entropy

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MDPI - Multidisciplinary Digital Publishing Institute (2)


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CC by-nc-nd (2)


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english (2)


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2019 (2)