Results 61 to 70 of about 17,124 (228)
Advanced Science, EarlyView.eEF1G supports translation elongation of meiotic mRNAs in transcriptionally quiescent leptotene and zygotene spermatocytes. Its depletion in germ cells causes meiotic arrest at the zygotene stage, with defective homologous synapsis and unstable recombination intermediates.
Jianze Xu +12 more
wiley +1 more source
Diversity and abundance of the abnormal chromosome 10 meiotic drive complex in Zea mays [PDF]
Heredity, 2013 Maize Abnormal chromosome 10 (Ab10) contains a classic meiotic drive system that exploits asymmetry of meiosis to preferentially transmit itself and other chromosomes containing specialized heterochromatic regions called knobs. The structure and diversity of the Ab10 meiotic drive haplotype is poorly understood.
Kanizay, Lisa B. +6 more
openaire +3 more sources
Recurrence of multiple meiotic abnormalities in maize genotypes from the same origin and their influence on productivity. [PDF]
, 2018 The frequency of meiotic abnormalities among single-, double- and three-way cross experimental hybrids and their parental inbred lines is studied. Among the sixteen inbred lines examined, fifteen originated from populations developed at the National ...
MEIRELLES, W. F. +3 more
core
From Cytoskeletal Remodeling to Oocyte Quality: The Emerging Role of Mechanics
Advanced Science, EarlyView.Mechanical properties of the oocyte are increasingly recognized as critical determinants of meiotic success and developmental potential. How actomyosin remodeling controls oocyte mechanics, how these properties are altered in pathological conditions, and how they could serve as markers in reproductive medicine are examined.
Anastasia Shihabi +3 more
wiley +1 more source
Chromosome segregation and recombination in human meiosis: Clinical applications and insight into disjunction errors [PDF]
, 2015 Chromosome copy number errors (or aneuploidy) of gametes and embryos occurs in humans more frequently than in any other studied species, with a spectrum of manifestations from implantation failure to affected live births.
Ottolini, Christian Simon +1 more
core
Equine models in translational medicine: A comparative approach to human health
Animal Models and Experimental Medicine, EarlyView.This diagram summarizes and contrasts rodent and equine models, outlining their strengths, limitations, and applications. Horses offer naturally occurring diseases, genetic and physiological similarities to humans, and suitability for longitudinal and clinical‐scale studies.
Shayan Boozarjomehri Amnieh +1 more
wiley +1 more source
, 1990 Tissue culture can induce changes in chromosome structure and number in common wheat (Triticum aestivum L.). The type and frequency of such changes were evaluated in primary regenerants extracted from calli of four immature embryos of 'Norstar' winter ...
Ernest D. P. Whelan
core +1 more source
Meiotic chromosome behaviour in Cenchrus ciliaris
Bothalia: African Biodiversity & Conservation, 1998 A basic chromosome number of x = 9 has been confirmed for Cenchrus ciliaris L. Polyploidy is common and levels vary from tetraploid to hexaploid. Aneuploidv is reported for a single specimen, where two chromosomes of a single genome were lost.
N. C. Visser, J. J. Spies
doaj +1 more source
Cytoskeleton, EarlyView.ABSTRACT Cooperativity between cytoskeletal proteins is crucial for spatiotemporal coordination in biological processes, like oogenesis. In mammalian and Drosophila oogenesis, proper assembly and function of actin networks require coordination between actin assembly factors Spire and formins, as well as actin‐associated proteins like myosins and Rab ...
Joseph Y. Ong +7 more
wiley +1 more source
Equine Veterinary Journal, EarlyView.Abstract Background The molecular mechanisms underlying adaptation to physical exertion and racing stress in horses remain incompletely understood. Peripheral blood transcriptomics offers a minimally invasive method to monitor systemic responses to exercise and identify biomarkers of adaptation or overload. Objectives To evaluate transcriptomic changes
Izabela Dąbrowska +4 more
wiley +1 more source