Results 41 to 50 of about 10,705 (212)

A new hypothesis may explain human parthenogenesis and ovarian teratoma: A review study

International Journal of Reproductive BioMedicine, 2023
Parthenogenesis (PG) is a rare phenomenon occurring in humans, and understanding this may help us develop an explanation for such occurrences. Moreover, it may help reveal the cause of idiopathic ovarian teratoma (OT). We aim to explain the occurrence of
Abdelmonem Awad Hegazy, Aiman Ibraheem Al-Qtaitat, Raafat Awad Hegazy   +2 more
doaj   +1 more source

Sodium Hexametaphosphate Serves as an Inducer of Calcium Signaling

Biomolecules, 2023
In bacteria, polymers of inorganic phosphates, particularly linear polyphosphate, are used as alternative phosphate donors for adenosine triphosphate production.
Daiki Katano, Woojin Kang, Yuichirou Harada, Natsuko Kawano, Mami Miyado, Takako Saito, Mio Fukuoka, Mitsutoshi Yamada, Kenji Miyado   +8 more
doaj   +1 more source

Hotter, faster, sicker? Warming shifts the cost of infection from individuals to populations

Journal of Animal Ecology, EarlyView.
This study examines how temperature alters disease impacts across biological scales in a host–pathogen system. We found infected hosts appear healthiest at warm temperatures, yet populations suffer most. This suggests climate warming may intensify disease impacts for populations in ways traditional individual‐level virulence metrics fail to predict ...
Nathan J. Butterworth, Kerri J. Moore, Matthew D. Hall   +2 more
wiley   +1 more source

The role of parthenogenesis in snakes

, 2021
Parthenogenesis, or the production of embryos from unfertilized eggs, is a form of reproduction that occurs predominantly in different taxa of invertebrates where various types of such reproduction are recognized. Some animal species consist exclusively,
D'Ardes, Anna
core  

Comparative Proteomic Analysis Provides New Insights into the Molecular Basis of Thermal-Induced Parthenogenesis in Silkworm (Bombyx mori)

Insects, 2023
Artificial parthenogenetic induction via thermal stimuli in silkworm is an important technique that has been used in sericultural production. However, the molecular mechanism underlying it remains largely unknown.
Jine Chen, Xin Du, Xia Xu, Sheng Zhang, Lusong Yao, Xiuling He, Yongqiang Wang   +6 more
doaj   +1 more source

Russian wheat aphid: a model for genomic plasticity and a challenge to breeders

Insect Science, EarlyView.
Invasive foundress finds suitable habitat and reproduces through pathogenesis. Wingless females produce life offspring quickly, which leads to high population densities. High population densities result in competition, which may induce epigenetic changes and wing development for dispersal.
Astrid Jankielsohn, Vicky L. Tolmay, Marlon‐Schylor Luke le Roux, Lintle Mohase, Mpho S. Mafa, Vittorio F. Nicolis, Eduard Venter, Nicolaas Francois Visser Burger, Anna‐Maria Botha   +8 more
wiley   +1 more source

EXPERIMENTS IN ARTIFICIAL PARTHENOGENESIS

, 1903
Lyon, E.P. Experiments in artificial parthenogenesis, 1903 Full texthttps://digitalcommons.rockefeller.edu/pamphlets-offprints-and-reprints/1084/thumbnail ...
E. P. Lyon, Lyon, E. P.
core   +1 more source

First report of recurrent parthenogenesis as an adaptive reproductive strategy in the endangered common smooth-hound shark Mustelus mustelus

Scientific Reports
Parthenogenesis, or virgin birth, describes a mode of reproduction where an egg develops into an offspring without fertilization, and is observed across various vertebrate taxa, excluding mammals.
Giuseppe Esposito, Arianna Meletiadis, Simona Sciuto, Marino Prearo, Flavio Gagliardi, Ilaria Corrias, Angela Pira, Alessandro Dondo, Paolo Briguglio, Claudio Ghittino, Daniele Dedola, Elena Bozzetta, Pier Luigi Acutis, Paolo Pastorino, Silvia Colussi   +14 more
doaj   +1 more source

Exploring the potential of using male‐killing endosymbionts to induce female‐biased insect populations for enhanced biomass production

Insect Science, EarlyView.
Overview of the mindset and long‐term goals with the approach suggested in this study. We provide a first proof of concept that male‐killing endosymbionts can be used to establish female biased populations with higher production efficiency than populations with a 50/50 sex ratio. This biological tool can have marked positive impact on future commercial
Stine F. Laursen, Perran A. Ross, Nadieh de Jonge, Ary A. Hoffmann, Torsten N. Kristensen   +4 more
wiley   +1 more source

The Effect of Familiarity Among Social Partners on the Jumping Behavior of Amazon Mollies

Ethology, EarlyView.
Pairs of familiar or nonfamiliar clonal Amazon mollies were tested in individual bowls, from which they could only escape from by jumping. Familiar pairs remained together significantly more than non‐familiar ones. Other behavioral aspects, such as timing and direction of jumps was not affected by familiarity.
Fritz A. Francisco, Ayla L. Kesim, David Bierbach   +2 more
wiley   +1 more source