Results 91 to 100 of about 489,854 (362)

Genetic variance and genotype reaction norms in response to larval food manipulation for a trait important in scorpionfly sperm competition.

, 2008
Engqvist L. Genetic variance and genotype reaction norms in response to larval food manipulation for a trait important in scorpionfly sperm competition. Functional Ecology. 2008;22(1):070915213639001-???Sperm competition is an important attribute of many
L. Engqvist, Engqvist, Leif ; https://orcid.org/   +1 more
core   +1 more source

Ecological Adaptation Mechanisms Underlying Successful Plant Reproduction

Advanced Science, EarlyView.
During floral induction, various environmental and endogenous signals converge to regulate the florigen protein, which is transported from leaves to the SAM to initiate flowering. Within the SAM, a complex network of receptor kinases and small peptides orchestrates floral development with high spatiotemporal precision.
Hang Zhao, Shenghui Huo, Yue Xing, Shuxin Zhang, Guilin Li, Yihui Liu, Chongyang Jin, Fuguang Li, Xiaoyang Ge   +8 more
wiley   +1 more source

Functional remodeling of the gut microbiome and metabolome in primary idiopathic male infertility

BMC Microbiology
Background Primary idiopathic male infertility (PIMI) is a complex condition with unclear biological mechanisms. Increasing evidence indicates that gut microbiome-derived functional and metabolic alterations can influence host physiological processes ...
Chen Luo, Hailin Yao, Yang Xian, Tingting Yang, Xiao Xiao, Lijuan Ying, Jinyan Xu, Xuefeng Luo, Dajian Qiu, Yuan Liu, Bo Liu, Fuping Li   +11 more
doaj   +1 more source

Obstetric and perinatal outcomes in pregnancies conceived with donor versus partner sperm: a systematic review and meta-analysis

Frontiers in Endocrinology
BackgroundMale-related factors contribute to 30-40% of infertility cases, with donor sperm serving as a critical solution for severe male infertility or paternally inherited genetic disorders.
Junjie Liu, Yanpeng Dai, Zuozhe Song, Xintao Sun, Dongdong Lv, Dehua Zhao   +5 more
doaj   +1 more source

The Sperm Chromatin Structure Assay (SCSA(®)) and other sperm DNA fragmentation tests for evaluation of sperm nuclear DNA integrity as related to fertility.

Animal Reproduction Science, 2016
Thirty-five years ago the pioneering paper in Science (240:1131) on the relationship between sperm DNA integrity and pregnancy outcome was featured as the cover issue showing a fluorescence photomicrograph of red and green stained sperm.
D. Evenson
semanticscholar   +1 more source

Redox‐Dependent Chaperoning of GBF1 Condensates Regulates Seed Germination in Arabidopsis

Advanced Science, EarlyView.
In dormant seeds (low ROS), GBF1 forms liquid condensates to repress the germination gene CathB3, and the chaperone GIP1 maintains condensate liquidity and repressive activity. Upon imbibition (high ROS), ROS oxidize GIP1 during germination, impairing its chaperone function.
Yunying Wang, Xiaofeng Fang
wiley   +1 more source

Integrated profiling of semen microbiota and metabolome reveals dysregulation in primary idiopathic male infertility

Journal of Translational Medicine
Background Primary idiopathic male infertility remains a significant challenge due to its complex etiology and the lack of effective diagnostic tools.
Hailin Yao, Chen Luo, Yang Xian, Bo Liu, Tingting Yang, Run Tian, Xiao Xiao, Wenrui Zhao, Lijuan Ying, Jinyan Xu, Shasha Liu, Yelin Jia, Xuefeng Luo, Dajian Qiu, Yuan Liu, Qinqin Wu, Xiaohong Luo, Zhenmi Liu, Fuping Li   +18 more
doaj   +1 more source

Pitfalls in experiments testing predictions from sperm competition theory

, 2005
Engqvist L, Reinhold K. Pitfalls in experiments testing predictions from sperm competition theory. Journal of Evolutionary Biology. 2005;18(1):116-123.As females of many species mate with more than one male, ejaculates often face competition from the ...
Reinhold, Klaus, L. Engqvist, K. Reinhold, Engqvist, Leif ; https://orcid.org/   +3 more
core   +1 more source

Nanoscale Spatial Organization of ARC High‐ and Low‐Order Assemblies at Excitatory Synapses

Advanced Science, EarlyView.
ARC (Activity‐Regulated Cytoskeleton‐Associated protein) mediates synaptic plasticity by forming nanoscale assemblies in neurons. Using super‐resolution microscopy and time‐resolved anisotropy with targeted tagging, the study reveals low‐order ARC assemblies at synapses colocalizing with AMPARs, semi‐circular structures at endocytic zones, and 60–80 nm
Martina Damenti, Giovanna Coceano, Mariline Mendes Silva, Jonatan Alvelid, Chiara Sgattoni, Andrea Volpato, Lea Rems, Luciano A. Masullo, Eduard M. Unterauer, Rafal Kowalewski, Lucie Delemotte, Erdinc Sezgin, Ralf Jungmann, Ilaria Testa   +13 more
wiley   +1 more source

Cryopreservation Does Not Affect the Clinical Pregnancy Rate of Blastocysts Derived from Vitrified Oocytes

Scientific Reports, 2022
Vitrified, or “frozen”, donor eggs can either be fertilized and cultured for fresh transfer (group 1), or fertilized and cryopreserved for transfer in a “frozen embryo transfer” cycle (group 2).
Hadi Ramadan, Tarita Pakrashi, Andrea R. Thurman, Kimball O. Pomeroy, Gerard Celia   +4 more
doaj   +1 more source