Results 51 to 60 of about 1,973,836 (223)

Genetic Regulation of Mitosis–Meiosis Fate Decision in Plants: Is Callose an Oversighted Polysaccharide in These Processes?

Plants, 2023
Timely progression of the meiotic cell cycle and synchronized establishment of male meiosis in anthers are key to ascertaining plant fertility. With the discovery of novel regulators of the plant cell cycle, the mechanisms underlying meiosis initiation ...
Harsha Somashekar, Ken-Ichi Nonomura
doaj   +1 more source

Phase Separation of SF3B1 Serves as a Critical Post‐Transcriptional Regulator During Early Mouse Embryogenesis

Advanced Science, EarlyView.
Phase separation of SF3B1 acts as a key regulatory mechanism for dynamic alternative splicing throughout early mouse embryogenesis. Its absence triggers extensive splicing errors, which induce persistent DNA damage, defective cell cycle progression, and failed cell lineage commitment, and ultimately hinder the normal growth and development of ...
Kang Zhao, Ting‐Yu Han, Yan‐Li Cheng, Yi‐Dan Zhang, Yu‐Wei Zhang, JinJian Guo, ShaoJun Zhang, WenZe Huang, Jing Zhang, Pei‐Yu Liao, Ying Xin, ChuanChen Chu, Qing‐Yuan Sun, ZhiZhen Liu, Xiang‐Hong Ou, Jun Xie   +15 more
wiley   +1 more source

DUET‐seq: An Open‐Source Droplet Platform for High‐Fidelity Joint Chromatin and Transcriptome Profiling Reveals Temporal Regulatory Decoupling in Single Cells

Advanced Science, EarlyView.
DUET‐seq is an open‐source droplet platform that jointly profiles chromatin accessibility and gene expression from the same nucleus. Dissolvable dual‐linker hydrogel beads and a one‐step intra‐droplet RT‐PCR co‐index both modalities in under 12 h at roughly $0.04 per cell.
Dong Cheng, Zijun Meng, Lan Wei, Pingjing Yang, Fanfan Zhang, Zhiyi Luo, Ting Lai, Chunli Li, Mengyao Zhao, Mengqin Xu, Jiaqi Wang, Linjun Li, Huarong Chen, Jin Li, Ailong Huang, Youquan Bu, Liuyang Zhao   +16 more
wiley   +1 more source

Stage-specific expression profiling of Drosophila spermatogenesis suggests that meiotic sex chromosome inactivation drives genomic relocation of testis-expressed genes. [PDF]

PLoS Genetics, 2009
In Drosophila, genes expressed in males tend to accumulate on autosomes and are underrepresented on the X chromosome. In particular, genes expressed in testis have been observed to frequently relocate from the X chromosome to the autosomes.
Maria D Vibranovski, Hedibert F Lopes, Timothy L Karr, Manyuan Long   +3 more
doaj   +1 more source

First Report of Uniparental Isodisomy of Chromosome 15 Revealing Angelman Syndrome and Microphthalmia Associated With a Novel Homozygous ALDH1A3 Variant

American Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Paternal isodisomy of chromosome 15 (iUPD15) is a recognized cause of Angelman syndrome (AS), accounting for approximately 2%–5% of cases. Additionally, another recognized consequence of iUPD is the unmasking of autosomal recessive disorders. However, reports of recessive disorders resulting from iUPD15 remain scarce in the literature.
Gabriela Roldão Correia‐Costa, Joana Rosa Marques Prota, Antonia Paula Marques‐de‐Faria, Carlos Eduardo Steiner, Társis Paiva Vieira   +4 more
wiley   +1 more source

Defective callose walls and cell plates during abnormal meiosis cause male-sterility in the oat mutant zbs1

Journal of Integrative Agriculture, 2016
: During meiosis in flowering plants, degradation of the callose wall in tetrads releases newly produced microspores, which develop into mature pollen grains.
Xiao SHI, Jin-xia WU, Hai-tao ZHOU, Xiao-hong YANG, Tian-liang LI, Xin-jun ZHANG, Cai YANG, Xiao HAN   +7 more
doaj   +1 more source

Nuclear Export of Cyclin B Mediated by the Nup62 Complex Is Required for Meiotic Initiation in Drosophila Males

Cells, 2020
Background: The central channel of the nuclear pore complex plays an important role in the selective transport of proteins between the nucleus and cytoplasm.
Ryotaro Okazaki, Kanta Yamazoe, Yoshihiro H. Inoue   +2 more
doaj   +1 more source

Male reproductive system in stenopodidean shrimps: Unveiling basal reproductive traits in shrimp‐like Pleocyemata (Stenopodidae and Spongicolidae)

The Anatomical Record, EarlyView.
Abstract Stenopodidea represents one of the basal lineages within Pleocyemata, yet the male reproductive system (MRS) of this group remains poorly understood, with limited information available regarding its morphology and function. This study provides the first detailed description of the MRS in four stenopodidean shrimp species from two families ...
Caio Santos Nogueira, Lucas Rezende Penido Paschoal, Fernando José Zara   +2 more
wiley   +1 more source

Male meiotic spindle features that efficiently segregate paired and lagging chromosomes

eLife, 2020
Chromosome segregation during male meiosis is tailored to rapidly generate multitudes of sperm. Little is known about mechanisms that efficiently partition chromosomes to produce sperm.
Gunar Fabig, Robert Kiewisz, Norbert Lindow, James A Powers, Vanessa Cota, Luis J Quintanilla, Jan Brugués, Steffen Prohaska, Diana S Chu, Thomas Müller-Reichert   +9 more
doaj   +1 more source

Histological Characterization and Comparative Transcriptomic Analysis of Gonads During Early Sex Differentiation in the Northern Snakehead (Channa argus)

Animal Research and One Health, EarlyView.
This study delineates the early sex differentiation timeline in the northern snakehead (Channa argus). These findings provide a foundation for future sex‐control breeding in this economically important species. ABSTRACT The northern snakehead (Channa argus) is an economically important aquaculture species in China.
Chaonan Sun, Donglei Sun, Haishen Wen, Xin Qi, Chao Li, Xiaoyan Zhang, Yun Li   +6 more
wiley   +1 more source