scholarly journals Charge breeding techniques

2004 ◽  
Vol 746 ◽  
pp. 40-46 ◽  
Author(s):  
Fredrik Wenander
Keyword(s):  
Charge Breeding ◽  
Breeding Techniques

Optimizing charge breeding techniques for ISOL facilities in Europe: Conclusions from the EMILIE project

2016 ◽  
Vol 87 (2) ◽  
pp. 02B510 ◽  
Author(s):  
P. Delahaye ◽  
A. Galatà ◽  
J. Angot ◽  
J. F. Cam ◽  
E. Traykov ◽  
...  
Keyword(s):  
Charge Breeding ◽  
Breeding Techniques

scholarly journals Reproductive Anatomy of Chondrichthyans: Notes on Specimen Handling and Sperm Extraction. II. Sharks and Chimaeras

Animals ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 2191
Author(s):  
Pablo García-Salinas ◽  
Victor Gallego ◽  
Juan F. Asturiano
Keyword(s):  
Artificial Insemination ◽  
Captive Breeding ◽  
Ex Situ ◽  
Specimen Handling ◽  
Viable Sperm ◽  
Abdominal Massage ◽  
Reproductive Anatomy ◽  
Conservation Projects ◽  
Breeding Techniques

The chondrichthyan fishes, which comprise sharks, rays, and chimaeras, are one of the most threatened groups of vertebrates on the planet. Given this situation, an additional strategy for the protection of these species could be the ex situ conservation projects developed in public aquaria and research centers. Nevertheless, to increase sustainability and to develop properly in situ reintroduction strategies, captive breeding techniques, such as sperm extraction and artificial insemination, should be developed. These techniques are commonly used in other threatened species and could be also used in chondrichthyans. However, the different reproductive morphologies found in this group can complicate both processes. Therefore, a comparison of the reproductive anatomy of eight distinct chondrichthyans, with an emphasis on those important differences when performing sperm extraction or artificial insemination, is carried out herein. Sharks and chimaeras belonging to the Scyliorhinidae, Carcharhinidae, Centrophoridae, Etmopteridae, Hexanchidae, and Chimaeridae families were obtained from commercial fisheries, public aquaria, and stranding events. In addition, the process of obtaining viable sperm samples through cannulation, abdominal massage, and oviducal gland extraction is described in detail for both living and dead animals.

scholarly journals Evolution and Application of Genome Editing Techniques for Achieving Food and Nutritional Security

2021 ◽  
Vol 22 (11) ◽  
pp. 5585
Author(s):  
Sajid Fiaz ◽  
Sunny Ahmar ◽  
Sajjad Saeed ◽  
Aamir Riaz ◽  
Freddy Mora-Poblete ◽  
...  
Keyword(s):  
Abiotic Stress ◽  
Food Security ◽  
Plant Breeding ◽  
Genome Editing ◽  
Crop Improvement ◽  
Hybrid Seed Production ◽  
Biotic And Abiotic Stress ◽  
Transcription Activator ◽  
Protein System ◽  
Breeding Techniques

A world with zero hunger is possible only through a sustainable increase in food production and distribution and the elimination of poverty. Scientific, logistical, and humanitarian approaches must be employed simultaneously to ensure food security, starting with farmers and breeders and extending to policy makers and governments. The current agricultural production system is facing the challenge of sustainably increasing grain quality and yield and enhancing resistance to biotic and abiotic stress under the intensifying pressure of climate change. Under present circumstances, conventional breeding techniques are not sufficient. Innovation in plant breeding is critical in managing agricultural challenges and achieving sustainable crop production. Novel plant breeding techniques, involving a series of developments from genome editing techniques to speed breeding and the integration of omics technology, offer relevant, versatile, cost-effective, and less time-consuming ways of achieving precision in plant breeding. Opportunities to edit agriculturally significant genes now exist as a result of new genome editing techniques. These range from random (physical and chemical mutagens) to non-random meganucleases (MegaN), zinc finger nucleases (ZFNs), transcription activator-like effector nucleases (TALENs), clustered regularly interspaced short palindromic repeats (CRISPR)/associated protein system 9 (CRISPR/Cas9), the CRISPR system from Prevotella and Francisella1 (Cpf1), base editing (BE), and prime editing (PE). Genome editing techniques that promote crop improvement through hybrid seed production, induced apomixis, and resistance to biotic and abiotic stress are prioritized when selecting for genetic gain in a restricted timeframe. The novel CRISPR-associated protein system 9 variants, namely BE and PE, can generate transgene-free plants with more frequency and are therefore being used for knocking out of genes of interest. We provide a comprehensive review of the evolution of genome editing technologies, especially the application of the third-generation genome editing technologies to achieve various plant breeding objectives within the regulatory regimes adopted by various countries. Future development and the optimization of forward and reverse genetics to achieve food security are evaluated.

scholarly journals Applications and Potential of Genome-Editing Systems in Rice Improvement: Current and Future Perspectives

Agronomy ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1359
Author(s):  
Javaria Tabassum ◽  
Shakeel Ahmad ◽  
Babar Hussain ◽  
Amos Musyoki Mawia ◽  
Aqib Zeb ◽  
...  
Keyword(s):  
Genome Editing ◽  
Crop Production ◽  
Grain Quality ◽  
High Efficiency ◽  
Abiotic Stress Tolerance ◽  
Mutation Breeding ◽  
Rice Grain ◽  
Rice Varieties ◽  
Rice Improvement ◽  
Breeding Techniques

Food crop production and quality are two major attributes that ensure food security. Rice is one of the major sources of food that feeds half of the world’s population. Therefore, to feed about 10 billion people by 2050, there is a need to develop high-yielding grain quality of rice varieties, with greater pace. Although conventional and mutation breeding techniques have played a significant role in the development of desired varieties in the past, due to certain limitations, these techniques cannot fulfill the high demands for food in the present era. However, rice production and grain quality can be improved by employing new breeding techniques, such as genome editing tools (GETs), with high efficiency. These tools, including clustered, regularly interspaced short palindromic repeats (CRISPR) systems, have revolutionized rice breeding. The protocol of CRISPR/Cas9 systems technology, and its variants, are the most reliable and efficient, and have been established in rice crops. New GETs, such as CRISPR/Cas12, and base editors, have also been applied to rice to improve it. Recombinases and prime editing tools have the potential to make edits more precisely and efficiently. Briefly, in this review, we discuss advancements made in CRISPR systems, base and prime editors, and their applications, to improve rice grain yield, abiotic stress tolerance, grain quality, disease and herbicide resistance, in addition to the regulatory aspects and risks associated with genetically modified rice plants. We also focus on the limitations and future prospects of GETs to improve rice grain quality.

PRESENT STATUS OF CHARGE-BREEDING IN KEKCB AT TRIAC

2009 ◽  
Author(s):  
M. Oyaizu ◽  
S. C. Jeong ◽  
N. Imai ◽  
Y. Fuchi ◽  
Y. Hirayama ◽  
...  
Keyword(s):  
Present Status ◽  
Charge Breeding

The MAXEBIS at GSI as a test ion source for charge breeding and for HITRAP

2008 ◽  
Vol 79 (2) ◽  
pp. 02A705 ◽  
Author(s):  
O. Kester ◽  
R. Becker ◽  
J. Pfister ◽  
A. Sokolov ◽  
G. Vorobjev ◽  
...  
Keyword(s):  
Ion Source ◽  
Charge Breeding

scholarly journals Penning-trap Q-value determination of the Ga71(ν,e−)Ge71 reaction using threshold charge breeding of on-line produced isotopes

2013 ◽  
Vol 722 (4-5) ◽  
pp. 233-237 ◽  
Author(s):  
D. Frekers ◽  
M.C. Simon ◽  
C. Andreoiu ◽  
J.C. Bale ◽  
M. Brodeur ◽  
...  
Keyword(s):  
Penning Trap ◽  
Q Value ◽  
Charge Breeding ◽  
On Line ◽  
Value Determination

New plant breeding techniques and their regulatory implications: An opportunity to advance metabolomics approaches

2021 ◽  
Vol 258-259 ◽  
pp. 153378
Author(s):  
Eugenia M.A. Enfissi ◽  
Margit Drapal ◽  
Laura Perez-Fons ◽  
Marilise Nogueira ◽  
Harriet M. Berry ◽  
...  
Keyword(s):  
Plant Breeding ◽  
Breeding Techniques ◽  
New Plant Breeding Techniques
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