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BMC Developmental Biology

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https://www.readbyqxmd.com/read/29653508/dynamic-transcriptome-landscape-of-asian-domestic-honeybee-apis-cerana-embryonic-development-revealed-by-high-quality-rna-sequencing
#1
Xiaofen Hu, Li Ke, Zilong Wang, Zhijiang Zeng
BACKGROUND: Honeybee development consists of four stages: embryo, larva, pupa and adult. Embryogenesis, a key process of cell division and differentiation, takes 3 days in honeybees. However, the embryonic transcriptome and the dynamic regulation of embryonic transcription are still largely uncharacterized in honeybees, especially in the Asian honeybee (Apis cerana). Here, we employed high-quality RNA-seq to explore the transcriptome of Asian honeybee embryos at three ages, approximately 24, 48 and 72 h (referred to as Day1, Day2 and Day3, respectively)...
April 13, 2018: BMC Developmental Biology
https://www.readbyqxmd.com/read/29649968/swimming-exercise-to-control-precocious-maturation-in-male-seabass-dicentrarchus-labrax
#2
Marco Graziano, Raul Benito, Josep V Planas, Arjan P Palstra
BACKGROUND: Male European seabass, already predominant (~ 70%) in cultured stocks, show a high incidence (20-30%) of precocious sexual maturation under current aquaculture practices, leading to important economic losses for the industry. In view of the known modulation of reproductive development by swimming exercise in other teleost species, we aimed at investigating the effects of sustained swimming on reproductive development in seabass males during the first year of life in order to determine if swimming could potentially reduce precocious sexual maturation...
April 12, 2018: BMC Developmental Biology
https://www.readbyqxmd.com/read/29614966/molecular-signatures-of-epithelial-oviduct-cells-of-a-laying-hen-gallus-gallus-domesticus-and-quail-coturnix-japonica
#3
Katarzyna Stadnicka, Anna Sławińska, Aleksandra Dunisławska, Bertrand Pain, Marek Bednarczyk
BACKGROUND: In this work we have determined molecular signatures of oviduct epithelial and progenitor cells. We have proposed a panel of selected marker genes, which correspond with the phenotype of oviduct cells of a laying hen (Gallus gallus domesticus) and quail (Coturnix japonica). We demonstrated differences in characteristics of those cells, in tissue and in vitro, with respect to different anatomical and functional parts of the oviduct (infundibulum (INF), distal magnum (DM, and proximal magnum (PM))...
April 4, 2018: BMC Developmental Biology
https://www.readbyqxmd.com/read/29614958/the-skeletal-ontogeny-of-astatotilapia-burtoni-a-direct-developing-model-system-for-the-evolution-and-development-of-the-teleost-body-plan
#4
Joost M Woltering, Michaela Holzem, Ralf F Schneider, Vasilios Nanos, Axel Meyer
BACKGROUND: The experimental approach to the evolution and development of the vertebrate skeleton has to a large extent relied on "direct-developing" amniote model organisms, such as the mouse and the chicken. These organisms can however only be partially informative where it concerns secondarily lost features or anatomical novelties not present in their lineages. The widely used anamniotes Xenopus and zebrafish are "indirect-developing" organisms that proceed through an extended time as free-living larvae, before adopting many aspects of their adult morphology, complicating experiments at these stages, and increasing the risk for lethal pleiotropic effects using genetic strategies...
April 3, 2018: BMC Developmental Biology
https://www.readbyqxmd.com/read/29587629/comparative-analysis-of-fkbp-family-protein-evaluation-structure-and-function-in-mammals-and-drosophila-melanogaster
#5
REVIEW
George Ghartey-Kwansah, Zhongguang Li, Rui Feng, Liyang Wang, Xin Zhou, Frederic Z Chen, Meng Meng Xu, Odell Jones, Yulian Mu, Shawn Chen, Joseph Bryant, Williams B Isaacs, Jianjie Ma, Xuehong Xu
BACKGROUND: FK506-binding proteins (FKBPs) have become the subject of considerable interest in several fields, leading to the identification of several cellular and molecular pathways in which FKBPs impact prenatal development and pathogenesis of many human diseases. MAIN BODY: This analysis revealed differences between how mammalian and Drosophila FKBPs mechanisms function in relation to the immunosuppressant drugs, FK506 and rapamycin. Differences that could be used to design insect-specific pesticides...
March 27, 2018: BMC Developmental Biology
https://www.readbyqxmd.com/read/29544468/a-parental-requirement-for-dual-specificity-phosphatase-6-in-zebrafish
#6
Jennifer M Maurer, Charles G Sagerström
BACKGROUND: Signaling cascades, such as the extracellular signal-regulated kinase (ERK) pathway, play vital roles in early vertebrate development. Signals through these pathways are initiated by a growth factor or hormone, are transduced through a kinase cascade, and result in the expression of specific downstream genes that promote cellular proliferation, growth, or differentiation. Tight regulation of these signals is provided by positive or negative modulators at varying levels in the pathway, and is required for proper development and function...
March 15, 2018: BMC Developmental Biology
https://www.readbyqxmd.com/read/29506474/anti-apoptotic-effects-of-igf-i-on-mortality-and-dysmorphogenesis-in-tbx5-deficient-zebrafish-embryos
#7
Tzu-Chun Tsai, Chun-Che Shih, Hsin-Ping Chien, An-Hang Yang, Jenn-Kan Lu, Jen-Her Lu
BACKGROUND: Tbx5 deficiency in zebrafish causes several abnormal phenotypes of the heart and pectoral fins. It has been reported that exogenous human growth hormone can enhance expression of downstream mediators in the growth hormone and insulin-like growth factor I (IGF-I) pathway and partially restore dysmorphogenesis in tbx5 morphants. This study aimed to further evaluate the effects of IGF-I on cell apoptosis and dysmorphogenesis in zebrafish embryos deficient for tbx5. RESULTS: Among the five studied groups of zebrafish embryos (wild-type embryos [WT], tbx5 morphants [MO], mismatched tbx5 morpholino-treated wild-type embryos [MIS], IGF-I-treated wild-type embryos [WTIGF1], and IGF-I-treated tbx5 morphants [MOIGF1]), the expression levels of the ifg1, igf1-ra, ifg-rb, erk1, and akt2 genes as well as the ERK and AKT proteins were significantly reduced in the MO group, but were partially restored in the MOIGF1 group...
March 5, 2018: BMC Developmental Biology
https://www.readbyqxmd.com/read/29486709/evidence-for-a-centrosome-attracting-body-like-structure-in-germ-soma-segregation-during-early-development-in-the-urochordate-oikopleura-dioica
#8
Lisbeth Charlotte Olsen, Ioannis Kourtesis, Henriette Busengdal, Marit Flo Jensen, Harald Hausen, Daniel Chourrout
BACKGROUND: Germ cell formation has been investigated in sessile forms of tunicates. This process involves the release of a subset of maternal transcripts from the centrosome-attracting body (CAB) in the progenitor cells of the germ line. When germ-soma segregation is completed, CAB structures are missing from the newly formed primordial germ cells (PGCs). In free-swimming tunicates, knowledge about germ cell formation is lacking. In this investigation, comparative gene expression and electron microscopy studies were used to address germ cell formation in Oikopleura dioica (O...
February 27, 2018: BMC Developmental Biology
https://www.readbyqxmd.com/read/29471810/expression-and-function-of-microrna-9-in-the-mid-hindbrain-area-of-embryonic-chick
#9
A Alwin Prem Anand, Carola Huber, John Asnet Mary, Nancy Gallus, Christoph Leucht, Ruth Klafke, Bernhard Hirt, Andrea Wizenmann
BACKGROUND: MiR-9 is a small non-coding RNA that is highly conserved between species and primarily expressed in the central nervous system (CNS). It is known to influence proliferation and neuronal differentiation in the brain and spinal cord of different vertebrates. Different studies have pointed to regional and species-specific differences in the response of neural progenitors to miR-9. METHODS: In ovo and ex ovo electroporation was used to overexpress or reduce miR-9 followed by mRNA in situ hybridisation and immunofluorescent stainings to evaluate miR- expression and the effect of changed miR-9 expression...
February 22, 2018: BMC Developmental Biology
https://www.readbyqxmd.com/read/29458328/dynamics-of-promoter-bivalency-and-rnap-ii-pausing-in-mouse-stem-and-differentiated-cells
#10
Anna Mantsoki, Guillaume Devailly, Anagha Joshi
BACKGROUND: Mammalian embryonic stem cells display a unique epigenetic and transcriptional state to facilitate pluripotency by maintaining lineage-specification genes in a poised state. Two epigenetic and transcription processes involved in maintaining poised state are bivalent chromatin, characterized by the simultaneous presence of activating and repressive histone methylation marks, and RNA polymerase II (RNAPII) promoter proximal pausing. However, the dynamics of histone modifications and RNAPII at promoters in diverse cellular contexts remains underexplored...
February 20, 2018: BMC Developmental Biology
https://www.readbyqxmd.com/read/29382313/opsin-expression-patterns-coincide-with-photoreceptor-development-during-pupal-development-in-the-honey-bee-apis-mellifera
#11
Leonie Lichtenstein, Kornelia Grübel, Johannes Spaethe
BACKGROUND: The compound eyes of insects allow them to catch photons and convert the energy into electric signals. All compound eyes consist of numerous ommatidia, each comprising a fixed number of photoreceptors. Different ommatidial types are characterized by a specific set of photoreceptors differing in spectral sensitivity. In honey bees, males and females possess different ommatidial types forming distinct retinal mosaics. However, data are lacking on retinal ontogeny and the mechanisms by which the eyes are patterned...
January 30, 2018: BMC Developmental Biology
https://www.readbyqxmd.com/read/29258421/in-vivo-imaging-of-epithelial-wound-healing-in-the-cnidarian-clytia-hemisphaerica-demonstrates-early-evolution-of-purse-string-and-cell-crawling-closure-mechanisms
#12
Zach Kamran, Katie Zellner, Harry Kyriazes, Christine M Kraus, Jean-Baptiste Reynier, Jocelyn E Malamy
BACKGROUND: All animals have mechanisms for healing damage to the epithelial sheets that cover the body and line internal cavities. Epithelial wounds heal either by cells crawling over the wound gap, by contraction of a super-cellular actin cable ("purse string") that surrounds the wound, or some combination of the two mechanisms. Both cell crawling and purse string closure of epithelial wounds are widely observed across vertebrates and invertebrates, suggesting early evolution of these mechanisms...
December 19, 2017: BMC Developmental Biology
https://www.readbyqxmd.com/read/29228898/the-asymmetric-cell-division-machinery-in-the-spiral-cleaving-egg-and-embryo-of-the-marine-annelid-platynereis-dumerilii
#13
Aron B Nakama, Hsien-Chao Chou, Stephan Q Schneider
BACKGROUND: Over one third of all animal phyla utilize a mode of early embryogenesis called 'spiral cleavage' to divide the fertilized egg into embryonic cells with different cell fates. This mode is characterized by a series of invariant, stereotypic, asymmetric cell divisions (ACDs) that generates cells of different size and defined position within the early embryo. Astonishingly, very little is known about the underlying molecular machinery to orchestrate these ACDs in spiral-cleaving embryos...
December 11, 2017: BMC Developmental Biology
https://www.readbyqxmd.com/read/29169323/tol2-transposon-mediated-transgenesis-in-the-midas-cichlid-amphilophus-citrinellus-towards-understanding-gene-function-and-regulatory-evolution-in-an-ecological-model-system-for-rapid-phenotypic-diversification
#14
Claudius F Kratochwil, Maggie M Sefton, Yipeng Liang, Axel Meyer
BACKGROUND: The Midas cichlid species complex (Amphilophus spp.) is widely known among evolutionary biologists as a model system for sympatric speciation and adaptive phenotypic divergence within extremely short periods of time (a few hundred generations). The repeated parallel evolution of adaptive phenotypes in this radiation, combined with their near genetic identity, makes them an excellent model for studying phenotypic diversification. While many ecological and evolutionary studies have been performed on Midas cichlids, the molecular basis of specific phenotypes, particularly adaptations, and their underlying coding and cis-regulatory changes have not yet been studied thoroughly...
November 23, 2017: BMC Developmental Biology
https://www.readbyqxmd.com/read/29047338/unique-n-terminal-sequences-in-two-runx1-isoforms-are-dispensable-for-runx1-function
#15
Sebastian Nieke, Nighat Yasmin, Kiyokazu Kakugawa, Tomomasa Yokomizo, Sawako Muroi, Ichiro Taniuchi
BACKGROUND: The Runt-related transcription factors (Runx) are a family of evolutionarily conserved transcriptional regulators that play multiple roles in the developmental control of various cell types. Among the three mammalian Runx proteins, Runx1 is essential for definitive hematopoiesis and its dysfunction leads to human leukemogenesis. There are two promoters, distal (P1) and proximal (P2), in the Runx1 gene, which produce two Runx1 isoforms with distinct N-terminal amino acid sequences, P1-Runx1 and P2-Runx1...
October 18, 2017: BMC Developmental Biology
https://www.readbyqxmd.com/read/29017464/respective-contribution-of-the-cephalic-neural-crest-and-mesoderm-to-six1-expressing-head-territories-in-the-avian-embryo
#16
Barbara F Fonseca, Gérard Couly, Elisabeth Dupin
BACKGROUND: Vertebrate head development depends on a series of interactions between many cell populations of distinct embryological origins. Cranial mesenchymal tissues have a dual embryonic source: - the neural crest (NC), which generates most of craniofacial skeleton, dermis, pericytes, fat cells, and tenocytes; and - the mesoderm, which yields muscles, blood vessel endothelia and some posterior cranial bones. The molecular players that orchestrate co-development of cephalic NC and mesodermal cells to properly construct the head of vertebrates remain poorly understood...
October 10, 2017: BMC Developmental Biology
https://www.readbyqxmd.com/read/28728543/integrative-analysis-of-the-pekin-duck-anas-anas-micrornaome-during-feather-follicle-development
#17
Xingyong Chen, Kai Ge, Min Wang, Cheng Zhang, Zhaoyu Geng
BACKGROUND: The quality and yield of duck feathers are very important economic traits that might be controlled by miRNA regulation. The aim of the present study was to investigate the mechanism underlying the crosstalk between individual miRNAs and the activity of signaling pathways that control the growth of duck feathers during different periods. We therefore conducted a comprehensive investigation using Solexa sequencing technology on the Pekin duck microRNAome over six stages of feather development at days 11, 15, and 20 of embryonic development (during the hatching period), and at 1 day and 4 and 10 weeks posthatch...
July 20, 2017: BMC Developmental Biology
https://www.readbyqxmd.com/read/28716037/phylogeny-expression-patterns-and-regulation-of-dna-methyltransferases-in-early-development-of-the-flatfish-solea-senegalensis
#18
Joana Firmino, Carlos Carballo, Paula Armesto, Marco A Campinho, Deborah M Power, Manuel Manchado
BACKGROUND: The identification of DNA methyltransferases (Dnmt) expression patterns during development and their regulation is important to understand the epigenetic mechanisms that modulate larval plasticity in marine fish. In this study, dnmt1 and dnmt3 paralogs were identified in the flatfish Solea senegalensis and expression patterns in early developmental stages and juveniles were determined. Additionally, the regulation of Dnmt transcription by a specific inhibitor (5-aza-2'-deoxycytidine) and temperature was evaluated...
July 17, 2017: BMC Developmental Biology
https://www.readbyqxmd.com/read/28676034/cathepsin-b-inhibitor-improves-developmental-competency-and-cryo-tolerance-of-in-vitro-ovine-embryos
#19
M Pezhman, S M Hosseini, S Ostadhosseini, Sh Rouhollahi Varnosfaderani, F Sefid, M H Nasr-Esfahani
BACKGROUND: Cathepsin B is a lysosomal cysteine protease involved in apoptosis and oocytes which have lower developmental competence show higher expression of Cathepsin B. Furthermore, expression of Cathepsin B show a decreasing trend from oocyte toward blastocyst stage. RESULTS: Present study assessed the effect of cathepsin B inhibitor, E-64, on developmental competency and cryo-survival of pre-implantation ovine IVF derived embryos. Cathepsin B inhibitor was added during day 3 to 8 of development...
July 4, 2017: BMC Developmental Biology
https://www.readbyqxmd.com/read/28673232/expression-of-ciona-intestinalis-aox-causes-male-reproductive-defects-in-drosophila-melanogaster
#20
Sina Saari, Ana Andjelković, Geovana S Garcia, Howard T Jacobs, Marcos T Oliveira
BACKGROUND: Mitochondrial alternative respiratory-chain enzymes are phylogenetically widespread, and buffer stresses affecting oxidative phosphorylation in species that possess them. However, they have been lost in the evolutionary lineages leading to vertebrates and arthropods, raising the question as to what survival or reproductive disadvantages they confer. Recent interest in using them in therapy lends a biomedical dimension to this question. METHODS: Here, we examined the impact of the expression of Ciona intestinalis alternative oxidase, AOX, on the reproductive success of Drosophila melanogaster males...
July 3, 2017: BMC Developmental Biology
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