نتایج جستجو برای: conventional breeding

تعداد نتایج: 316237  

2010
D. A. Edge-Garza Yanmin Zhu

Breeding new cultivars is a slow and expensive process, but genetic screening tools exist to improve efficiency. We employed the marker-assisted breeding (MAB) Pipeline approach to facilitate routine use of MAB in the Washington apple breeding program. This study traced the journey of one marker-locus-trait (M-L-T) association from publication through high-throughput PCR-based genetic testing t...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 1994
D M Lambert C D Millar K Jack S Anderson J L Craig

In behavioral and ecological studies the "function" of dominance hierarchies is thought to be related to reproductive success. In particular, dominant males are regarded as likely to gain a reproductive advantage due to enhanced "access" to females. We compare the dominance status of adults with the frequency of copulations and the patterns of parentage in communally breeding pukeko or purple s...

2017
Jae-Don Oh Chong-Sam Na Kyung-Do Park

OBJECTIVE This study was to determine the relationship between estimated breeding value and phenotype information after farrowing when juvenile selection was made in candidate pigs without phenotype information. METHODS After collecting phenotypic and genomic information for the total number of piglets born by Landrace pigs, selection accuracy between genomic breeding value estimates using ge...

2017

Dr. Ray Bohlin examines the rapidly moving world of genetic engineering from a Christian worldview perspective. He explains that most genetic engineering attempts to make more efficient changes similar to those previously done through selective breeding and other conventional techniques. However, those working in the field need to be aware of the ethical and religious issues that arise in this ...

Journal: :Agricultural and biological chemistry 1990
H Ito K Sato H Enei Y Hirose

Genetic breeding of microbial amino acid producers has been done conventionally by acquiring auxotrophic mutants or regulatory mutants based on fundamental knowledge of amino acid biosynthetic pathways and their regulatory mechanisms. The conventional techniques are effective in that a number of amino acids, such as lglutamate, L-lysine, L-phenylalanine, L-threonine, larginine, L-isoleucine, L-...

2015
Shiv Kumar Karthika Rajendran Jitendra Kumar Aladdin Hamwieh Michael Baum

Most of the lentil growing countries face a certain set of abiotic and biotic stresses causing substantial reduction in crop growth, yield, and production. Until-to date, lentil breeders have used conventional plant breeding techniques of selection-recombination-selection cycle to develop improved cultivars.These techniques have been successful in mainstreaming some of the easy-to-manage monoge...

Journal: :Reproduction in domestic animals = Zuchthygiene 2012
E T Margawati

Traditional breeding programmes have largely contributed to disseminate the benefits of several quantitative traits in livestock. In developing countries such as Indonesia where animal population scattered throughout the country, it is difficult to invest for molecular research. On the other side, yet, it is worthy asset for breeding purposes. Based on theory and evidence, it has been proved th...

Journal: :Asian-Australasian journal of animal sciences 2016
B M Lopez H S Kang T H Kim V S Viterbo H S Kim C S Na K S Seo

The objective of this study was to evaluate the present conventional selection program of a swine nucleus farm and compare it with a new selection strategy employing genomic enhanced breeding value (GEBV) as the selection criteria. The ZPLAN+ software was employed to calculate and compare the genetic gain, total cost, return and profit of each selection strategy. The first strategy reflected th...

2017
Godelieve Gheysen René Custers Gerhart U. Ryffel

The EU regulation on organic farming does not allow the use of genetically modified organisms (GMOs) which are subject to Directive 2001/18/EC. Mutagenesis using irradiation or chemicals is genetic modification, but the organisms obtained through these techniques are not subject to the provisions of the GMO directive. Such mutants can therefore be used in organic agriculture. Derived from its b...

Journal: :Journal of agricultural and food chemistry 2005
Melinda C McCann Keshun Liu William A Trujillo Raymond C Dobert

Previous studies have shown that the composition of glyphosate-tolerant soybeans (GTS) and selected processed fractions was substantially equivalent to that of conventional soybeans over a wide range of analytes. This study was designed to determine if the composition of GTS remains substantially equivalent to conventional soybeans over the course of several years and when introduced into multi...

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