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Genomics in Aquaculture to Better Understand Species Biology and Accelerate Genetic Progress

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Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889199570 Year: Pages: 151 DOI: 10.3389/978-2-88919-957-0 Language: English
Publisher: Frontiers Media SA
Subject: Science (General) --- Genetics
Added to DOAB on : 2016-01-19 14:05:46
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From a global perspective aquaculture is an activity related to food production with large potential for growth. Considering a continuously growing population, the efficiency and sustainability of this activity will be crucial to meet the needs of protein for human consumption in the near future. However, for continuous enhancement of the culture of both fish and shellfish there are still challenges to overcome, mostly related to the biology of the cultured species and their interaction with (increasingly changing) environmental factors. Examples of these challenges include early sexual maturation, feed meal replacement, immune response to infectious diseases and parasites, and temperature and salinity tolerance. Moreover, it is estimated that less than 10% of the total aquaculture production in the world is based on populations genetically improved by means of artificial selection. Thus, there is considerable room for implementing breeding schemes aimed at improving productive traits having significant economic impact. By far the most economically relevant trait is growth rate, which can be efficiently improved by conventional genetic selection (i.e. based on breeding values of selection candidates). However, there are other important traits that cannot be measured directly on selection candidates, such as resistance against infectious and parasitic agents and carcass quality traits (e.g. fillet yield and meat color). However, these traits can be more efficiently improved using molecular tools to assist breeding programs by means of marker-assisted selection, using a few markers explaining a high proportion of the trait variation, or genomic selection, using thousands of markers to estimate genomic breeding values. The development and implementation of new technologies applied to molecular biology and genomics, such as next-generation sequencing methods and high-throughput genotyping platforms, are allowing the rapid increase of availability of genomic resources in aquaculture species. These resources will provide powerful tools to the research community and will aid in the determination of the genetic factors involved in several biological aspects of aquaculture species. In this regard, it is important to establish discussion in terms of which strategies will be more efficient to solve the primary challenges that are affecting aquaculture systems around the world. The main objective of this Research Topic is to provide a forum to communicate recent research and implementation strategies in the use of genomics in aquaculture species with emphasis on (1) a better understanding of fish and shellfish biological processes having considerable impact on aquaculture systems; and (2) the efficient incorporation of molecular information into breeding programs to accelerate genetic progress of economically relevant traits.

Molecular Advances in Wheat and Barley

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ISBN: 9783039213719 9783039213726 Year: Pages: 290 DOI: 10.3390/books978-3-03921-372-6 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology
Added to DOAB on : 2019-12-09 11:49:15
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Allohexaploid bread wheat and diploid barley are two of the most cultivated crops in the world. This book reports novel research and reviews concerning the use of modern technologies to understand the molecular bases for wheat and barley improvement. The contributions published in this book illustrate research advances in wheat and barley knowledge using modern molecular techniques. These molecular approaches cover genomic, transcriptomic, proteomic, and phenomic levels, together with new tools for gene identification and the development of novel molecular markers. Overall, the contributions for this book lead to a further understanding of regulatory systems in order to improve wheat and barley performance.

Keywords

Triticum durum --- Aegilops tauschii --- Triticum aestivum --- marker-trait associations --- genes --- bread wheat --- genetic biofortification --- favorable alleles --- allohexaploid --- homoeolog --- hybrid necrosis --- molecular marker --- wheat --- wheat --- rye --- 6R --- small segment translocation --- powdery mildew --- transgenic wheat --- 12-oxophytodienoate reductase --- jasmonates --- freezing tolerance --- HIGS --- transgene --- wheat --- barley --- cereal cyst nematodes --- wheat --- barely --- breeding --- biotechnology --- resistance --- Triticum aestivum --- Landrace --- Powdery mildew --- Bulked segregant analysis-RNA-Seq (BSR-Seq) --- Single nucleotide polymorphism (SNP) --- Kompetitive Allele Specific PCR (KASP) --- Blumeria graminis f. sp. tritici --- protein two-dimensional electrophoresis --- mass spectrometry --- Pm40 --- Barley --- Grain development --- Transcriptional dynamics --- RNA editing --- RNA-seq --- durum wheat --- Tunisian landraces --- center of diversity --- genetic diversity --- population structure --- DArTseq technology --- chromatin --- 3D-FISH --- nucleus --- introgression --- rye --- hybrid --- wheat --- genome stability --- wheat --- Thinopyrum --- chromosome --- ND-FISH --- oligo probe --- barley --- wheat --- protease --- germination --- grain --- abiotic stress --- antioxidant enzymes --- aquaporin --- TdPIP2 --- 1 --- histochemical analysis --- transgenic wheat --- transpiration --- wheat --- Aegilops tauschii --- Lr42 --- disease resistance --- molecular mapping --- KASP markers --- marker-assisted selection --- phytase --- wheat --- barley --- purple acid phosphatase phytase --- PAPhy --- mature grain phytase activity (MGPA) --- genome assembly --- bread wheat --- barley --- optical mapping --- BAC --- ribosomal DNA --- cereals --- CRISPR --- crops --- genetic engineering --- genome editing --- plant --- Triticeae --- n/a

Cell-Free Nucleic Acids

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ISBN: 9783039280742 9783039280759 Year: Pages: 248 DOI: 10.3390/books978-3-03928-075-9 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Medicine (General)
Added to DOAB on : 2020-01-30 16:39:46
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The deficits of mammography and the potential of noninvasive diagnostic testing using circulating miRNA profiles are presented in our first review article. Exosomes are important in the transfer of genetic information. The current knowledge on exosome-associated DNAs and on vesicle-associated DNAs and their role in pregnancy-related complications is presented in the next article. The major obstacle is the lack of a standardized technique for the isolation and measurement of exosomes. One review has summarized the latest results on cell-free nucleic acids in inflammatory bowel disease (IBD). Despite the extensive research, the etiology and exact pathogenesis are still unclear, although similarity to the cell-free ribonucleic acids (cfRNAs) observed in other autoimmune diseases seems to be relevant in IBD. Liquid biopsy is a useful tool for the differentiation of leiomyomas and sarcomas in the corpus uteri. One manuscript has collected the most important knowledge of mesenchymal uterine tumors and shows the benefits of noninvasive sampling. Microchimerism has also recently become a hot topic. It is discussed in the context of various forms of transplantation and transplantation-related advanced therapies, the available cell-free nucleic acid (cfNA) markers, and the detection platforms that have been introduced. Ovarian cancer is one of the leading serious malignancies among women, with a high incidence of mortality; the introduction of new noninvasive diagnostic markers could help in its early detection and treatment monitoring. Epigenetic regulation is very important during the development of diseases and drug resistance. Methylation changes are important signs during ovarian cancer development, and it seems that the CDH1 gene is a potential candidate for being a noninvasive biomarker in the diagnosis of ovarian cancer. Preeclampsia is a mysterious disease—despite intensive research, the exact details of its development are unknown. It seems that cell-free nucleic acids could serve as biomarkers for the early detection of this disease. Three research papers deal with the prenatal application of cfDNA. Copy number variants (CNVs) are important subjects for the study of human genome variations, as CNVs can contribute to population diversity and human genetic diseases. These are useful in NIPT as a source of population specific data. The reliability of NIPT depends on the accurate estimation of fetal fraction. Improvement in the success rate of in vitro fertilization (IVF) and embryo transfer (ET) is an important goal. The measurement of embryo-specific small noncoding RNAs in culture media could improve the efficiency of ET.

Keywords

breast cancer --- screening --- liquid biopsy --- omics --- multi-level diagnostics --- individualized patient profile --- miRNA --- mammography --- predictive and preventive approach --- personalized medicine --- cell-free DNA --- exosomes --- extracellular vesicles --- fetal DNA --- preeclampsia --- growth retardation --- gestational diabetes mellitus --- miRNA --- piRNA --- NGS --- RT-PCR --- embryo culture medium --- C19MC microRNA --- expression --- exosomes --- fetal growth restriction --- gestational hypertension --- plasma --- prediction --- preeclampsia --- pregnancy-related complications --- screening --- non-invasive prenatal testing --- statistical models --- z-score --- cell-free nucleic acids --- circulating nucleic acids --- cell-free DNAs --- cell-free RNAs --- exosomes --- inflammatory bowel disease --- neutrophil extracellular traps --- NETosis --- liquid biopsy --- cell-free nucleic acids --- circulating tumor cells --- leiomyomas --- sarcomas --- leiomyosarcomas --- exosomes --- NIPT --- fetal fraction --- statistical methods --- DNA --- maternal serum screening --- fetal cells --- liquid biopsy --- pyrosequencing --- ovarian cancer --- CDH1 --- PTEN --- PAX1 --- RASSF1 --- cfDNA --- cell-free DNA --- nuclease activity --- aging --- obesity --- gender differences --- copy number variants --- next generation sequencing --- non-invasive prenatal testing --- population study --- microchimerism --- solid organ transplantation --- hematopoietic stem cell transplantation --- genetic marker --- single nucleotide polymorphism --- deletion/insertion polymorphism --- ovarian cancer --- circulating miRNA --- blood plasma --- NanoString --- network analysis --- biomarker --- n/a

Major Histocompatibility Complex (MHC) in Health and Disease

Authors: --- ---
ISBN: 9783039280728 9783039280735 Year: Pages: 375 DOI: 10.3390/books978-3-03928-073-5 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology
Added to DOAB on : 2020-04-07 23:07:08
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The major histocompatibility complex (MHC) is a highly polymorphic and diverse multigene locus in all jawed vertebrate species that has an integral role in adaptive/innate immune systems, transplantation, and infectious and autoimmune diseases. The MHC supra-locus in mammalian vertebrates is usually partitioned into three distinct regions, known as classes I, II, and III, which, to varying extents, can be found conserved in nonmammalian jawed vertebrates, such as bony fish, amphibians, and bird lineages. The MHC gene region is characterized particularly by the expression of class I and class II glycoproteins that bind peptides derived from intracellular or extracellular antigens to circulating T-cells. While this expressed antigenic specificity remains the predominant interest with respect to MHC function and polymorphism in a population, a broader concept has emerged that examines the MHC as a multifunctional polymorphic controller that facilitates and regulates genome diversity with a much greater array of functions and effects than just MHC-restricted antigen recognition. This volume of 19 reprints presented by various experts and collected from the Special Issue of Cells on “MHC in Health and Disease” covers a broad range of topics on the genomic diversity of the MHC regulatory system in various vertebrate species, including MHC class I, II, and III genes; innate and adaptive immunity; neurology; transplantation; haplotypes; infectious and autoimmune diseases; fecundity; conservation; allelic lineages; and evolution. Taken together, these articles demonstrate the immense complexity and diversity of the MHC structure and function within and between different vertebrate species.

Keywords

MHC-I- and MHC-II-dependent inter-individual recognition --- MHC-II-associated sperm-egg recognition --- MHC-I-based mother-fetus recognition --- giant panda --- long-fragment super haplotype --- MHC --- genetic drift --- haplotype --- crested ibis --- founder effect --- bottleneck --- conservation genetics --- selection --- fish --- MHC --- polymorphism --- disease resistance --- quantitative trait loci (QTL) studies --- evolution --- HCP5 --- lncRNA --- MHC --- HLA --- human endogenous retrovirus (HERV) --- cancer --- autoimmune diseases --- competing endogenous RNA (ceRNA) --- human immunodeficiency virus (HIV) --- human papillomavirus (HPV) --- astrogliosis --- PNS/CNS interface --- microglial reaction --- synaptic covering --- ?2m knockout mice --- HLA-B27 --- viral peptides --- computational analysis --- ankylosing spondylitis --- KIR --- KIR–HLA pairs --- ethnic populations in China --- molecular dynamics simulation --- major histocompatibility complex --- antigen --- T-cell receptor --- domain movements --- autoimmunity --- risk genes --- expression --- regulation --- swine leukocyte antigen --- reproductive performance --- production trait --- haplotype --- micro-mini-pigs --- disease association --- haplotype --- HLA polymorphism --- major histocompatibility complex (MHC) --- pedigree --- phase --- protocol --- single nucleotide polymorphism (SNP) --- T1DGC --- type 1 diabetes (T1D) --- BK virus --- polyomavirus --- nephropathy --- human leukocyte antigen-E --- kidney transplantation --- MHC --- ancestral haplotype --- autoimmune disease --- cynomolgus macaque --- Macaca fascicularis --- MHC polymorphism --- experimental medicine --- nonhuman primate models --- DXO --- DOM3Z --- NELF-E --- RD --- SKIV2L --- SKI2W --- STK19 --- RP1 --- NSDK --- RLR --- miR1236 --- SVA --- RNA quality control --- 5??3? RNA decay --- 3??5? mRNA turnover --- antiviral immunity --- interferon ? --- promoter-proximal transcriptional pause --- exosomes --- nuclear kinase --- hepatocellular carcinoma --- Ski complex --- trichohepatoenteric syndrome --- melanoma --- major histocompatibility complex --- MHC --- evolution --- nonclassical --- fish --- MHC genes --- birds --- disease resistance --- orthology --- life history --- gene duplication --- long-read sequencing --- high-throughput sequencing --- concerted evolution --- ecology --- MHC --- major histocompatibility complex --- Old World camels --- camels --- dromedary --- Bactrian camel --- SNP --- n/a

Plant Genetics and Molecular Breeding

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ISBN: 9783039211753 9783039211760 Year: Pages: 628 DOI: 10.3390/books978-3-03921-176-0 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology
Added to DOAB on : 2019-08-28 11:21:27
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The development of new plant varieties is a long and tedious process involving the generation of large seedling populations for the selection of the best individuals. While the ability of breeders to generate large populations is almost unlimited, the selection of these seedlings is the main factor limiting the generation of new cultivars. Molecular studies for the development of marker-assisted selection (MAS) strategies are particularly useful when the evaluation of the character is expensive, time-consuming, or with long juvenile periods. The papers published in the Special Issue “Plant Genetics and Molecular Breeding” report highly novel results and testable new models for the integrative analysis of genetic (phenotyping and transmission of agronomic characters), physiology (flowering, ripening, organ development), genomic (DNA regions responsible for the different agronomic characters), transcriptomic (gene expression analysis of the characters), proteomic (proteins and enzymes involved in the expression of the characters), metabolomic (secondary metabolites), and epigenetic (DNA methylation and histone modifications) approaches for the development of new MAS strategies. These molecular approaches together with an increasingly accurate phenotyping will facilitate the breeding of new climate-resilient varieties resistant to abiotic and biotic stress, with suitable productivity and quality, to extend the adaptation and viability of the current varieties.

Keywords

sugarcane --- cry2A gene --- particle bombardment --- stem borer --- resistance --- NPK fertilizers --- agronomic traits --- molecular markers --- quantitative trait loci --- common wild rice --- Promoter --- Green tissue-specific expression --- light-induced --- transgenic chrysanthemum --- WRKY transcription factor --- salt stress --- gene expression --- DgWRKY2 --- Cucumis sativus L. --- RNA-Seq --- DEGs --- sucrose --- ABA --- drought stress --- Aechmea fasciata --- squamosa promoter binding protein-like --- flowering time --- plant architecture --- bromeliad --- Oryza sativa --- endosperm development --- rice quality --- WB1 --- the modified MutMap method --- abiotic stress --- Cicer arietinum --- candidate genes --- genetics --- heat-stress --- molecular breeding --- metallothionein --- Brassica --- Brassica napus --- As3+ stress --- broccoli --- cytoplasmic male sterile --- bud abortion --- gene expression --- transcriptome --- RNA-Seq --- sesame --- genome-wide association study --- yield --- QTL --- candidate gene --- cabbage --- yellow-green-leaf mutant --- recombination-suppressed region --- bulk segregant RNA-seq --- differentially expressed genes --- marker–trait association --- haplotype block --- genes --- root traits --- D-genome --- genotyping-by-sequencing --- single nucleotide polymorphism --- durum wheat --- bread wheat --- complex traits --- Brassica oleracea --- Ogura-CMS --- iTRAQ --- transcriptome --- pollen development --- rice --- OsCDPK1 --- seed development, starch biosynthesis --- endosperm appearance --- Chimonanthus praecox --- nectary --- floral scent --- gene expression --- Prunus --- flowering --- bisulfite sequencing --- genomics --- epigenetics --- breeding --- AP2/ERF genes --- Bryum argenteum --- transcriptome --- gene expression --- stress tolerance --- SmJMT --- transgenic --- Salvia miltiorrhiza --- overexpression --- transcriptome --- phenolic acids --- Idesia polycarpa var --- glycine --- FAD2 --- linoleic acid --- oleic acid --- anther wall --- tapetum --- pollen accumulation --- OsGPAT3 --- rice --- cytoplasmic male sterility (CMS) --- phytohormones --- differentially expressed genes --- pollen development --- Brassica napus --- Rosa rugosa --- RrGT2 gene --- Clone --- VIGS --- Overexpression --- Tobacco --- Flower color --- Anthocyanin --- sugarcane --- WRKY --- subcellular localization --- gene expression pattern --- protein-protein interaction --- transient overexpression --- soybean --- branching --- genome-wide association study (GWAS) --- near-isogenic line (NIL) --- BRANCHED1 (BRC1) --- TCP transcription factor --- Zea mays L. --- MADS transcription factor --- ZmES22 --- starch --- flowering time --- gene-by-gene interaction --- Hd1 --- Ghd7 --- rice --- yield trait --- Oryza sativa L. --- leaf shape --- yield trait --- molecular breeding --- hybrid rice --- nutrient use efficiency --- quantitative trait loci (QTLs), molecular markers --- agronomic efficiency --- partial factor productivity --- P. suffruticosa --- R2R3-MYB --- overexpression --- anthocyanin --- transcriptional regulation --- ethylene-responsive factor --- Actinidia deliciosa --- AdRAP2.3 --- gene expression --- waterlogging stress --- regulation --- Chrysanthemum morifolium --- WUS --- CYC2 --- gynomonoecy --- reproductive organ --- flower symmetry --- Hs1pro-1 --- cZR3 --- gene pyramiding --- Heterodera schachtii --- resistance --- tomato --- Elongated Internode (EI) --- QTL --- GA2ox7 --- n/a

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