Results 41 to 50 of about 141,394 (267)

Doubled haploid ramets via embryogenesis of haploid tissue cultures [PDF]

, 2010
Tissue culture in the oil palm business is generally concerned with the multiplication (clonal production) of dura, pisifera and tenera palms. These are all normal diploids (2n=2x=36).
Caligari, P. D. S., Dunwell, Jim M., Forster, B. P., Iswandar, H. E., Nelson, S. P. C.   +4 more
core  

Semiconservative quasispecies equations for polysomic genomes: The general case

, 2009
This paper develops a formulation of the quasispecies equations appropriate for polysomic, semiconservatively replicating genomes. This paper is an extension of previous work on the subject, which considered the case of haploid genomes.
C. S. Potten, E. Tannenbaum, Emmanuel Tannenbaum, Eran Itan, J. R. Merok   +4 more
core   +1 more source

Invertible defects and isomorphisms of rational CFTs [PDF]

, 2010
Given two two-dimensional conformal field theories, a domain wall —or defect line— between them is called invertible if there is another defect with which it fuses to the identity defect.
Davydov, Alexei, Kong, Liang, Runkel, Ingo   +2 more
core   +3 more sources

Chronic Hypoxia Disrupts Spermatogenesis Through ASXL2–EZH2–Mediated Microtubule Destabilization

Advanced Science, EarlyView.
This study reveals the mechanism by which chronic hypoxia impairs spermatogenesis via the ASXL2–EZH2 axis, hindering the transition of spermatids from round to elongated forms. Key findings reveal that under hypoxic conditions, downregulated ASXL2 expression reduces EZH2 binding to the CEP162 promoter, leading to decreased H3K27me3 modification and ...
Jun Yin, Mengjie Zhang, Wenying Liu, Wenlong Shen, Debao Li, Hongming Miao, Fang Deng, Gang Zhang, Yi Tian, Yi Zhang, Zhihu Zhao, Bing Ni   +11 more
wiley   +1 more source

Genotypic differences in proembryoid development and green plantlets regeneration through androgenesis in barley varieties Diferenças genotípicas no desenvolvimento de pró-embrióides e regeneração de plântulas verdes via androgênese em genótipo de cevada

Ciência Rural, 2008
The development of in vitro haploid plants followed by spontaneous or induced genome duplication allows to achieve, in one generation, the recovery of total homozygosis. The efficiency of the haplodiploidization process through in vitro anther culture of
Paula Wiethölter, Maria Irene Baggio de Moraes Fernandes, Sandra Patussi Brammer, Euclydes Minella, Edson Jair Iorkzeski   +4 more
doaj   +1 more source

Discovery and genotyping of structural variation from long-read haploid genome sequence data [PDF]

, 2016
In an effort to more fully understand the full spectrum of human genetic variation, we generated deep single-molecule, real-time (SMRT) sequencing data from two haploid human genomes.
Boitano, Matthew, Chaisson, Mark J.P., Chin, Chen-Shin, Eichler, Evan E, Gordon, David, Graves-Lindsay, Tina A, Hoekzema, Kendra, Huddleston, John, Korlach, Jonas, Kronenberg, Zev N, Munson, Katherine M, Peluso, Paul, Steinberg, Karyn Meltz, Vives, Laura, Warren, Wes, Wilson, Richard K   +15 more
core   +2 more sources

Testicular mRNA‐LNP Delivery: A Novel Therapy for Genetic Spermatogenic Disorders

Advanced Science, EarlyView.
In the current study, we developed a novel therapy for genetic spermatogenic disorders. It was revealed that in vivo delivery of mRNA LNP3 could restore spermatogenesis in Msh5D486Y/D486Y and Maps KO mouse models with meiotic arrest. Notably, the offspring without genomic integration was born using ICSI derived from the rescue of Msh5D486Y/D486Y mouse ...
Chenwang Zhang, Nan Liang, Wenbo Li, Shuai Xu, Peng Li, Wanze Ni, Na Li, Sha Han, Ningjing Ou, Haowei Bai, Yuxiang Zhang, Furong Bai, Yifan Sun, Dewei Qian, Xinjie Bu, Erlei Zhi, Ruhui Tian, Yuhua Huang, Jingpeng Zhao, Fujun Zhao, Hao Chen, Zheng Li, Chencheng Yao   +22 more
wiley   +1 more source

Double-seedlings and embryo-free seeds generated by genetic engineering

Frontiers in Plant Science, 2022
Apomixis can fix the heterosis of Hybrid F1, by maintaining its heterozygous genotype, and is an ideal way for the development of hybrid rice. In this paper, we designed an engineering strategy for realizing apomictic reproduction of hybrid rice in the ...
Yumei Xia, Yumei Xia, Yao Wang, Yuanyi Hu, Yuanyi Hu, Yijie Zhan, Junhao Dan, Ning Tang, Junyou Tian, Mengliang Cao, Mengliang Cao, Mengliang Cao   +11 more
doaj   +1 more source

Mitotic antipairing of homologous and sex chromosomes via spatial restriction of two haploid sets. [PDF]

, 2018
Pairing homologous chromosomes is required for recombination. However, in nonmeiotic stages it can lead to detrimental consequences, such as allelic misregulation and genome instability, and is rare in human somatic cells.
Hua, Lisa L, Mikawa, Takashi
core   +1 more source

ZSL Orchestrates Synaptonemal Complex Assembly as a Central Region Scaffold to Ensure Synapsis Fidelity and Crossover Control in Polyploid Meiosis

Advanced Science, EarlyView.
A central molecular adaptor, ZSL, is identified that links transverse filaments ZYP1 to central element SCEP1/2 to drive synaptonemal complex assembly in Brassica napus. Loss of ZSL abolishes synaptonemal complex formation, disrupts meiotic chromosome segregation, and markedly increases crossovers, providing mechanistic insight into meiotic fidelity ...
Miaowei Geng, Shaochen Jia, Fei Cao, Cuiping Liu, Heshuang Zhang, Gang Xu, Jixin Zhuang, Yashi Zhang, Can Liu, Yuhang Zhao, Zilin Guo, Xinjie Yuan, Jiaqing Yang, Lei Chu, Bowei Cai, Hu Zhao, Chao Yang   +16 more
wiley   +1 more source