نتایج جستجو برای: doubled haploids

تعداد نتایج: 11971  

2008
Bill Curran

Commercial corn breeding and trait integration have changed modern corn production. In recent years, technology advances for control of insects, weeds, and diseases have improved corn yield levels significantly. Conventional breeding continues to be the foundation of new inbreds (parent lines) for hybrid development. Another method of inbred development is called doubled haploids. This methodol...

Journal: :Agronomy 2023

Doubled haploid (DH) technology is an efficient strategy for producing completely homozygous lines breeding programs. Mutations in the MATRILINEAL (MTL) phospholipase trigger intraspecific induction cereals. Although vivo system based on OsMTL-edited plants has been established rice (Oryza sativa), DH still limited by other factors, such as identification, which one of essential steps required ...

Journal: :Genetics 1998
W P Young P A Wheeler V H Coryell P Keim G H Thorgaard

We report the first detailed genetic linkage map of rainbow trout (Oncorhynchus mykiss). The segregation analysis was performed using 76 doubled haploid rainbow trout produced by androgenesis from a hybrid between the "OSU" and "Arlee" androgenetically derived homozygous lines. Four hundred and seventy-six markers segregated into 31 major linkage groups and 11 small groups (< 5 markers/group). ...

Journal: :Black sea journal of agriculture 2022

For about a century, researchers have been working on haploidy approach. Progressively, they discovered the importance and usefulness of haploids in various research fields. On other hand, it is suggested that climate change impacts crop production, especially wheat, requires rapid efficient methods plant breeding to produce new cultivars with sufficient level biotic abiotic tolerance avoid sig...

2013
Alexander Strigens Wolfgang Schipprack Jochen C. Reif Albrecht E. Melchinger

Landraces are valuable genetic resources for broadening the genetic base of elite germplasm in maize. Extensive exploitation of landraces has been hampered by their genetic heterogeneity and heavy genetic load. These limitations may be overcome by the in-vivo doubled haploid (DH) technique. A set of 132 DH lines derived from three European landraces and 106 elite flint (EF) lines were genotyped...

Journal: :Journal of applied genetics 2003
Olivier Sounigo Philippe Lachenaud Philippe Bastide Christian Cilas Jeanne N'Goran Claire Lanaud

In order to evaluate twelve doubled haploids (DHs) of Theobroma cacao L. used as parents, a trial was set up in Côte d'Ivoire. Several traits were observed, such as yield, vigour, yield/vigour ratios, resistance to the black pod disease caused by Phytophthora, percentage of flat beans and mean weight of 100 cocoa beans. Out of the three progenies derived from crosses between two DHs, two showed...

2017
Krzysztof Jagiełło Tomasz Zalewski Stefan Dobosz Oliwia Michalik Konrad Ocalewicz

Mitotic gynogenesis results in the production of fully homozygous individuals in a single generation. Since inbred fish were found to exhibit an increased frequency of body deformations that may affect their survival, the main focus of this research was to evaluate the ratio of individuals with spinal deformities among gynogenetic doubled haploids (DHs) brown trout as compared to nonmanipulated...

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