journal
MENU ▼
Read by QxMD icon Read
search

Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution

journal
https://www.readbyqxmd.com/read/28191733/a-novel-dynamic-expression-of-vasa-in-male-germ-cells-during-spermatogenesis-in-the-chinese-soft-shell-turtle-pelidiscus-sinensis
#1
Wei Li, Piaoyi Zhang, Xuling Wu, Xinping Zhu, Hongyan Xu
vasa gene encodes a highly conserved DEAD-box RNA helicase, required for germ cell development across animal kingdom. Vasa mutations cause male infertility in mammals. It has been widely used as a biomarker for studying animal fertility or manipulating germ cells in organisms. However, in reptilians, the functions of vasa gene involved in germ cell differentiation are largely unclear; this hampers the development of biological techniques and the improvement of the productivity in these species. Here a vasa cDNA was isolated in Chinese soft-shell turtle and it predicts a protein of 691 amino acid residues, which is 72%, 69%, 58%, 59%, and 54-56% identical to its homolog from mouse, platypus, frog, chicken, and fish, respectively, and named as PsVasa...
February 13, 2017: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/28120453/change-of-fate-and-staminodial-laminarity-as-potential-agents-of-floral-diversification-in-the-zingiberales
#2
Alma Piñeyro-Nelson, Ana Maria Rocha De Almeida, Chodon Sass, William James Donaldson Iles, Chelsea Dvorak Specht
The evolution of floral morphology in the monocot order Zingiberales shows a trend in which androecial whorl organs are progressively modified into variously conspicuous "petaloid" structures with differing degrees of fertility. Petaloidy of androecial members results from extensive laminarization of an otherwise radially symmetric structure. The genetic basis of the laminarization of androecial members has been addressed through recent candidate gene studies focused on understanding the spatiotemporal expression patterns of genes known to be necessary to floral organ formation...
January 25, 2017: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/28111907/seilacher-konstruktions-morphologie-morphodynamics-and-the-evolution-of-form
#3
Derek E G Briggs
Adolf Seilacher (1925-2014) was a German paleontologist who made the concept of Konstruktions-Morphologie (constructional morphology) his own, recognizing that organism morphology is not simply an adaptive response to selection pressure but incorporates phylogenetic and structural influences as well. He was particularly interested in "fabricational noise," nonadaptive features that are a consequence of available materials and modes of growth, but he also elucidated the nature of adaptive radiations-in bivalves and sand dollars, for example...
January 23, 2017: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/28097823/excess-retinoic-acid-induces-fusion-of-centra-by-degenerating-intervertebral-ligament-cells-in-japanese-flounder-paralichthys-olivaceus
#4
Xiaoming Wu, Qiran Chen, Youhei Washio, Hayato Yokoi, Tohru Suzuki
In marine aquaculture fish, excessive supplement of vitamin A (VA) to zooplanktons for larval culture and experimental exposure of larvae to retinoic acid (RA: active form of VA) have been known to cause vertebral deformity. However, the tissues in the developing vertebral column that are affected by RA and the progression of vertebral deformity remain undetermined. To examine these questions, we histologically traced the progress of vertebral deformity induced by RA in Japanese flounder (Paralichthys olivaceus)...
January 18, 2017: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/28074622/-holostei-versus-halecostomi-problem-insight-from-cytogenetics-of-ancient-nonteleost-actinopterygian-fish-bowfin-amia-calva
#5
Zuzana Majtánová, Radka Symonová, Lenin Arias-Rodriguez, Lauren Sallan, Petr Ráb
Bowfin belongs to an ancient lineage of nonteleost ray-finned fishes (actinopterygians) and is the only extant survivor of a once diverged group, the Halecomorphi or Amiiformes. Owing to the scarcity of extant nonteleost ray-finned lineages, also referred as "living fossils," their phylogenetic interrelationships have been the target of multiple hypotheses concerning their sister group relationships. Molecular and morphological data sets have produced controversial results; bowfin is considered as either the sister group to genome-duplicated teleosts (together forming the group of Halecostomi) or to gars (Lepisosteiformes; together forming the group of Holostei)...
January 11, 2017: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/28074535/gene-ages-nomenclatures-and-functional-diversification-of-the-methuselah-methuselah-like-gpcr-family-in-drosophila-and-tribolium
#6
REVIEW
Markus Friedrich, Jeffery W Jones
Affecting lifespan regulation and oxidative stress resistance, the G-protein coupled receptor (GPCR) gene methuselah (mth) plays important roles in the life history of Drosophila melanogaster. Substantial progress has been made in elucidating the molecular pathways by which mth affects these traits, yet conflicting ideas exist as to how old these genetic interactions are as well as how old the mth gene itself is. Root to these issues is the complex gene family history of the Mth/Mthl GPCR family, which experienced independent expansions in a variety of animal clades, leading to at least six subfamilies in insects...
January 11, 2017: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/28035749/genome-compositional-organization-in-gars-shows-more-similarities-to-mammals-than-to-other-ray-finned-fish
#7
Radka Symonová, Zuzana Majtánová, Lenin Arias-Rodriguez, Libor Mořkovský, Tereza Kořínková, Lionel Cavin, Martina Johnson Pokorná, Marie Doležálková, Martin Flajšhans, Eric Normandeau, Petr Ráb, Axel Meyer, Louis Bernatchez
Genomic GC content can vary locally, and GC-rich regions are usually associated with increased DNA thermostability in thermophilic prokaryotes and warm-blooded eukaryotes. Among vertebrates, fish and amphibians appeared to possess a distinctly less heterogeneous AT/GC organization in their genomes, whereas cytogenetically detectable GC heterogeneity has so far only been documented in mammals and birds. The subject of our study is the gar, an ancient "living fossil" of a basal ray-finned fish lineage, known from the Cretaceous period...
December 30, 2016: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/28032453/deviating-from-the-norm-peculiarities-of-aplysia-cf-californica-early-cleavage-compared-to-traditional-spiralian-models
#8
Yolanda E Chávez-Viteri, Federico D Brown, Oscar D Pérez
Spiralia represents one of the main clades of bilaterally symmetrical metazoans (Bilateria). This group is of particular interest due to the remarkable conservation of its early developmental pattern despite of the high diversity of larval and adult body plans. Variations during embryogenesis are considered powerful tools to determine ancestral and derived characters under a phylogenetic framework. By direct observation of embryos cultured in vitro, we analyzed the early cleavage of the euopisthobranchs Aplysia cf...
December 29, 2016: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/27966283/motivational-value-of-the-female-orgasm-for-reproductive-success
#9
EDITORIAL
Robert C Speth
No abstract text is available yet for this article.
December 14, 2016: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/27966246/commentary-on-the-evolutionary-origin-of-female-orgasm-by-m-pavlicev-and-g-wagner-2016-j-exp-zool-mol-dev-evol-326-6-326-337
#10
Barry R Komisaruk
Evidence is presented as an alternative to the authors' claims that in the course of evolution, a link between orgasm and ovulation has been lost in women, that evolutionary changes in clitoral anatomy underlie this loss, and that women's orgasm plays no significant role in reproduction.
December 14, 2016: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/28121390/oral-facial-tissue-reconstruction-in-the-regenerative-axolotl
#11
Andre M Charbonneau, Stephane Roy, Simon D Tran
Absence of large amounts of orofacial tissues caused by cancerous resections, congenital defects, or trauma results in sequelae such as dysphagia and noticeable scars. Oral-neck tissue regeneration was studied in the axolotl (regenerative amphibian) following a 2.5-mm punch biopsy that simultaneously removed skin, connective tissue, muscle, and cartilage in the tongue and intermandibular region. The untreated wound was studied macroscopically and histologically at 17 different time points ranging from 0 to180 days (N = 120 axolotls)...
December 2016: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/28097826/development-shapes-a-consistent-inbreeding-effect-in-mouse-crania-of-different-line-crosses
#12
Mihaela Pavličev, Philipp Mitteroecker, Paula M Gonzalez, Campbell Rolian, Heather Jamniczky, Fernando Pardo-Manuel Villena, Ralph Marcucio, Richard Spritz, Benedikt Hallgrimsson
Development translates genetic variation into a multivariate pattern of phenotypic variation, distributing it among traits in a nonuniform manner. As developmental processes are largely shared within species, this suggests that heritable phenotypic variation will be patterned similarly, in spite of the different segregating alleles. To investigate developmental effect on the variational pattern in the shape of the mouse skull across genetically differentiated lines, we employed the full set of reciprocal crosses (a...
December 2016: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/27862964/morphological-and-molecular-analyses-of-an-anatomical-novelty-the-pelvic-fin-filaments-of-the-south-american-lungfish
#13
Sergio Q Lima, Carinne M Costa, Chris T Amemiya, Igor Schneider
The pelvic fins of male South American lungfish, Lepidosiren paradoxa, are adorned with a distinctive array of filaments, which grow and become highly vascularized during the breeding season. The resemblance between these pelvic fin filaments (PFFs) and external gills of other vertebrates suggested that this gill-like structure was used for physiological gas exchange. It has been proposed that the unique pelvic fin of male L. paradoxa is used for release of oxygen from its blood into the environment in order to aerate its nesting brood, or, conversely, as an auxiliary respiratory organ by absorbing oxygen from the environment into its bloodstream...
November 9, 2016: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/27966274/cell-proliferation-pattern-and-twist-expression-in-an-aplacophoran-mollusk-argue-against-segmented-ancestry-of-mollusca
#14
Emanuel Redl, Maik Scherholz, Tim Wollesen, Christiane Todt, Andreas Wanninger
The study of aplacophoran mollusks (i.e., Solenogastres or Neomeniomorpha and Caudofoveata or Chaetodermomorpha) has traditionally been regarded as crucial for reconstructing the morphology of the last common ancestor of the Mollusca. Since their proposed close relatives, the Polyplacophora, show a distinct seriality in certain organ systems, the aplacophorans are also in the focus of attention with regard to the question of a potential segmented ancestry of mollusks. To contribute to this question, we investigated cell proliferation patterns and the expression of the twist ortholog during larval development in solenogasters...
November 2016: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/27966251/identification-and-conservation-of-gene-loss-events-of-hox-gene-clusters-in-the-marine-medaka-oryzias-melastigma
#15
Hui-Su Kim, Dae-Sik Hwang, Chang-Bum Jeong, Doris W T Au, Jae-Seong Lee
In this study, the identification of the whole Hox gene clusters (46 Hox genes) in the marine medaka Oryzias melastigma was investigated using genome assembly and RNA-seq information. Moreover, the gene loss events of Hox gene clusters, which may occur during fish evolution, were examined for a better understanding of the evolutionary status of the gene lost events of the Hox gene cluster across fish species, particularly in the genus Oryzias.
November 2016: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/27921363/morphomechanics-and-developmental-constraints-in-the-evolution-of-ammonites-shell-form
#16
Alexander Erlich, Derek E Moulton, Alain Goriely, Regis Chirat
The idea that physical processes involved in biological development underlie morphogenetic rules and channel morphological evolution has been central to the rise of evolutionary developmental biology. Here, we explore this idea in the context of seashell morphogenesis. We show that a morphomechanical model predicts the effects of variations in shell shape on the ornamental pattern in ammonites, a now extinct group of cephalopods with external chambered shell. Our model shows that several seemingly unrelated characteristics of synchronous, ontogenetic, intraspecific, and evolutionary variations in ornamental patterns among various ammonite species may all be understood from the fact that the mechanical forces underlying the oscillatory behavior of the shell secreting system scale with the cross-sectional curvature of the shell aperture...
November 2016: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/27862951/characterization-and-evolution-of-the-spotted-gar-retina
#17
Joshua M Sukeena, Carlos A Galicia, Jacob D Wilson, Tim McGinn, Janette W Boughman, Barrie D Robison, John H Postlethwait, Ingo Braasch, Deborah L Stenkamp, Peter G Fuerst
In this study, we characterize the retina of the spotted gar, Lepisosteus oculatus, a ray-finned fish. Gar did not undergo the whole genome duplication event that occurred at the base of the teleost fish lineage, which includes the model species zebrafish and medaka. The divergence of gars from the teleost lineage and the availability of a high-quality genome sequence make it a uniquely useful species to understand how genome duplication sculpted features of the teleost visual system, including photoreceptor diversity...
November 2016: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/27781409/treeexp1-0-r-package-for-analyzing-expression-evolution-based-on-rna-seq-data
#18
Hang Ruan, Zhixi Su, Xun Gu
Recent innovation of RNA-seq technology has shed insightful light on the transcriptomic evolution studies, especially on researches of tissue-specific expression evolution. Phylogenetic analysis of transcriptome data may help to identify causal gene expression differences underlying the evolutionary changes in morphological, physiological, and developmental characters of interest. However, there is a deficiency of software to phylogenetically analyze transcriptome data. To address this need, we have developed an R package TreeExp that can perform comparative expression evolution analysis based on RNA-seq data, which includes optimized input formatting, normalization, pairwise expression distance estimation, expression character tree inference, and preliminary expression phylogenetic network analysis...
November 2016: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/27781385/an-epigenetic-perspective-on-the-midwife-toad-experiments-of-paul-kammerer-1880-1926
#19
REVIEW
Alexander O Vargas, Quirin Krabichler, Carlos Guerrero-Bosagna
Paul Kammerer was the most outstanding neo-Lamarckian experimentalist of the early 20th century. He reported spectacular results in the midwife toad, including crosses of environmentally modified toads with normal toads, where acquired traits were inherited in Mendelian fashion. Accusations of fraud generated a great scandal, ending with Kammerer's suicide. Controversy reignited in the 1970s, when journalist Arthur Koestler argued against these accusations. Since then, others have argued that Kammerer's results, even if real, were not groundbreaking and could be explained by somatic plasticity, inadvertent selection, or conventional genetics...
October 26, 2016: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
https://www.readbyqxmd.com/read/27659033/heterochrony-and-morphological-variation-of-epithalamic-asymmetry
#20
Iskra A Signore, Miguel L Concha
Heterochrony is one proposed mechanism to explain how morphological variation and novelty arise during evolution. To experimentally approach heterochrony in a comprehensive manner, we must consider all three aspects of developmental time (sequence, timing, duration). This task is only possible in developmental models that allow the acquisition of high-quality temporal data in the context of normalized developmental time. Here we propose that epithalamic asymmetry of teleosts is one such model. Comparative studies among related teleost species have revealed heterochronic shifts in the timing of ontogenic events leading to the development of epithalamic asymmetry...
September 23, 2016: Journal of Experimental Zoology. Part B, Molecular and Developmental Evolution
journal
journal
40393
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"