Results 51 to 60 of about 11,465 (216)

Isoetes ×atruensis (Isoetaceae – Lycopodiopsida), a new interspecific sterile hybrid from Rajasthan of Western India

Nordic Journal of Botany, EarlyView.
Isoetes ×atruensis hyb. nov. is shown to be a triploid (2n = 3× = 33 + 1) sterile interspecific hybrid between diploid (2n = 2× = 22 + 1) I. coromandelina and tetraploid (2n = 4× = 44 + 1) I. rajasthanensis. It has been found in two locations in Rajasthan, India.
Sarvesh Kumar Singh, Daniel F. Brunton, Pradeep Kumar Shukla, Santosh Kumar Shukla, Nawal Kishore Dubey   +4 more
wiley   +1 more source

Differential Expression Profiling Reveals Stress-Induced Cell Fate Divergence in Soybean Microspores

Plants, 2020
Stress-induced microspore embryogenesis is a widely employed method to achieve homozygosity in plant breeding programs. However, the molecular mechanisms that govern gametophyte de- and redifferentiation are understood poorly.
Brett Hale, Callie Phipps, Naina Rao, Asela Wijeratne, Gregory C. Phillips   +4 more
doaj   +1 more source

Electron microscopy‐based three‐dimensional subcellular imaging of plant male gametophyte

Journal of Integrative Plant Biology, EarlyView.
The Aquilos2 Cryo‐FIB workflows provide practical routes for cryo‐electron tomography and volume imaging in plant structural biology. ABSTRACT Understanding cellular events in three dimensions (3D) is of great importance for the annotation and illustration of biological processes in a contextual way. Imaging techniques based on electron microscopy (EM),
Zhiqi Liu, Zizhen Liang, Mengfei Liao, Yixin Huang, Rui Ma, Jiayang Gao, Weiqi Wang, Tao Ni, Philipp S. Erdmann, Liwen Jiang   +9 more
wiley   +1 more source

Pentatricopeptide repeat proteins in crops: Advances in functional mechanisms and breeding applications

Journal of Integrative Plant Biology, EarlyView.
Pentatricopeptide repeat proteins coordinate nucleus‐organelle communication by modulating RNA metabolism within chloroplasts and mitochondria. This review highlights how they control critical processes like photosynthesis, seed development, fertility restoration, and stress survival in crops, and explores their potential as programmable tools for RNA ...
Mingming Wu, Maohong Cai, Rongrong Zhai, Jing Ye, Guofu Zhu, Faming Yu, Shenghai Ye, Xiaoming Zhang   +7 more
wiley   +1 more source

HSP101‐encoding NEO‐TETRAPLOID RICE FERTILITY GENE 1 regulates tapetum development through interaction with SAPK2 in polyploid rice

Journal of Integrative Plant Biology, EarlyView.
In neo‐tetraploid rice, the NTRF1–SAPK2 heat shock protein–kinase module coordinates abscisic acid signaling with reactive oxygen species homeostasis to ensure timely tapetal programmed cell death and subsequent pollen maturation, providing a resource for the genetic improvement of polyploid rice.
Lichong Cao, Weicong Huang, Hang Yu, Sanglin Liu, Jianmin Yin, Zijun Lu, Jinwen Wu, Xiangdong Liu   +7 more
wiley   +1 more source

Pollen grain of barley (Hordeum vulgare L.) - pattern of development

Acta Societatis Botanicorum Poloniae, 2014
Pollen development in barley follows the general pattern established for other species of Poaceae: 1) microspore division occurs at the vacuolate microspore stage with polarly located nucleus; 2) microspore mitosis is immediately followed by phragmoplast
Maria Charzyńska, Nella Lenart
doaj   +1 more source

Haploid Mutation Mapping Identifies a Homoeologous Non‐Reciprocal Translocation Linked to Reduced Fibre and Enhanced Protein in Brassica napus

Plant Biotechnology Journal, EarlyView.
ABSTRACT A key challenge for the genetic improvement of canola (Brassica napus), one of the world's most important oilseeds, is the limited natural variation for commercially important traits. The creation of new variation is hindered by the lack of functional knowledge about genes controlling these traits.
Morgan W. Kirzinger, Sarika Saini, Andrea T. Todd, Ushan Alahakoon, Kevin C. Koh, Justin B. Nichol, HaiYing Yuan, Kevin Fengler, Victor Llaca, Dustin Cram, Sampath Perumal, Wali Soomro, Magda Konopka, Tancey Melchkart, Venkat Bandi, Yasmina Bekkaoui, Yifang Tan, Chad Matsalla, Andrew G. Sharpe, Carl Gutwin, Fred Thoonen, Igor Falak, Chad Koscielny, Stuart Gardner, Isobel A. P. Parkin, Marcus A. Samuel, Alison M. R. Ferrie, Dave Charne, Daoquan Xiang, Jetty S. S. AmmiRaju, Sateesh Kagale   +30 more
wiley   +1 more source

The making of gametes in higher plants [PDF]

, 2005
Higher plants have evolved to be one of the predominant life forms on this planet. A great deal of this evolutionary success relies in a very short gametophytic phase which underlies the sexual reproduction cycle. Sexual plant reproduction takes place in
Becker, J.D., Boavida, L., Feijó, J.A.
core   +1 more source

Microspore embryogenesis in Apiaceae

Plant Cell, Tissue and Organ Culture (PCTOC), 2010
Haploid technology is used to develop uniform, true-breeding lines, as well as to accelerate crop improvement programs. Among 20 Apiaceae species screened for response to doubled haploidy, 11 generated microspore-derived embryos, and all but one of the latter yielded doubled haploid plants.
A. M. R. Ferrie, T. D. Bethune, M. Mykytyshyn   +2 more
openaire   +2 more sources

OsMT2b Regulates Pollen Development and ROS Homeostasis in a Photoperiod‐Dependent Manner

Plant Biotechnology Journal, EarlyView.
ABSTRACT Reactive oxygen species (ROS) are signalling molecules that promote programmed cell death in animal and plant systems. However, their role in rice (Oryza sativa L.) anther development is unclear. In this study, we show that lower transcript levels of the metallothionein gene OsMT2b in japonica rice plants obtained by RNA interference (RNAi ...
Ying He, Can Wang, Zilong Luo, Mingyang Ding, Yunyi Wen, Jiao Liu, Weiting Chen, Jing Li, Chuxiong Zhuang, Dagang Jiang   +9 more
wiley   +1 more source