Results 91 to 100 of about 448,134 (326)
Haemoglobin polymorphism inGadus morhua: Genotypic differences in maturing age and within-season gonad maturation [PDF]
Helgoländer Meeresuntersuchungen, 1983 276 specimens of Atlantic cod (Gadus morhua L.) were caught during spawning in a restricted area of the Trondheimsfjord, Norway, in April and May 1979. Genotypes at the polymorphic haemoglobin locusHbl differed significantly with respect to mean age at maturation (in males) and mean gonadic development stage (in females).
J. Mork, R. Giskeödegård, G. Sundnes
openaire +1 more source
American Journal of Medical Genetics Part A, EarlyView.ABSTRACT Mosaicism is relatively common in Tuberous Sclerosis Complex (TSC) but can be difficult to detect using routine diagnostic tests, particularly when the variant allele frequency (VAF) is low. We describe two cases of mosaic TSC diagnosed using an ultra‐deep sequencing approach in multiple tissues and review the literature about this topic in ...
Irene Ambrosetti +14 more
wiley +1 more source
American Journal of Medical Genetics Part A, EarlyView.ABSTRACT The ciliopathies are a group of genetic disorders caused by defective function of either the primary cilia (a large number) or the motile cilia (a much smaller number). These have been defined as diseases with mutations in genes encoding individual ciliary or cilia‐associated proteins.
Robert P. Erickson +1 more
wiley +1 more source
Generating golden Syrian hamsters with conditional alleles via zygote microinjection of CRISPR/Cas9
Animal Models and Experimental Medicine, EarlyView.We established the first conditional knockout (cKO) model in the golden Syrian hamster by CRISPR/Cas9‐mediated genome editing. Cas9 protein, two sgRNAs, and a donor plasmid carrying loxP‐flanked exon 2 of the ApoF gene were microinjected into one‐cell embryos. The floxed allele was efficiently generated (up to 27%) and transmitted through the germline.
Wei Chen +16 more
wiley +1 more source
Majallah-i ̒Ilmī-i Shīlāt-i Īrān, 1998 In this study, the stage of gonadal development, type and season of spawning of Otolithes ruber in the North West of Persian Gulf were identified. O.ruber maturation and spawning were studied by macroscopic, microscopic, and histologic observation of ...
Gh. Eskandari; S. Amirinia; A. Savari; V. Yavari
doaj
Seasonal changes in serum testosterone, 11-ketotestosterone, and 1713-estradiol levels in the brown bullhead, Ictalurus nebuIosus Lesueur [PDF]
, 1984 The seasonal changes in gonadosomatic index (GSI) and strum testosterone, I I-ketotestosterone, and 17&estmdiol levels were measured in adult feral brown bullheads, Ictalurus nebulosus Lzsueur.
Burke, MG, Leatherland, JF, Sumpter, JP
core
Role of androgen and gonadotrophins in the development and function of the Sertoli cells and Leydig cells: data from mutant and genetically modified mice [PDF]
, 2009 Development and maintenance of the male phenotype and establishment of fertility are all dependent upon the activity of the Sertoli cells and Leydig cells of the testis.
Abel, M.H. +4 more
core +1 more source
The Anatomical Record, EarlyView.Abstract Stages of embryonic development for reptiles have been presented in tables that may include all or part of embryonic development. When oviposition occurs in some lizards, embryos are already in the later stages of development; likewise, the size of the eggs increases as incubation time progresses.
Nivia Rocio Antonio‐Rubio +3 more
wiley +1 more source
The direct response of the gonads to cues of stress in a temperate songbird species is season-dependent. [PDF]
, 2013 The gonadotropin releasing hormone (GnRH) system in the hypothalamus is often considered the final point in integration of environmental cues as they pertain to the reproductive axis.
Bentley, George +2 more
core +2 more sources
The Anatomical Record, EarlyView.Abstract The anatomical description of the hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica) remains largely unexplored, due to limited specimen availability and preservation challenges. This study employed digital imaging techniques, conventional histology, and computed tomography to provide visualization of
Jean‐Marie Graïc +26 more
wiley +1 more source