植物学技术

Ranunculus asiaticus is an important ornamental species mainly cultivated in the countries surrounding the Mediterranean sea. So far, the multiplication of this plant has been mainly carried out by seed and tuberous root division; however, these systems present many drawbacks. Tiss ...

A protocol for micropropagation of begonia was established utilizing a thin cell layer (TCL) system. This system has been employed to produce several thousand shoots per sample. Explant size and position, and plant growth regulators (PGRs) contribute to the tissue morphogenesis. By opti ...

For high frequency clonal propagation of Vanda teres, nodal segments are cultured on VW medium supplemented with 2% sucrose, 2 mg/L Kinetin, 0.5 mg/L NAA, 2 g/L peptone, 1 g/L activated charcoal and 2.2 g/L gelrite. The cultures are incubated at 24 � 2� C under fluorescent light 50 μmol/m2/s for a 16 h photoperiod per ...

Cyclamen (Cyclamen persicum) is an economically important ornamental pot plant with local use as cut flower as well. Traditionally, it is propagated via seeds, but interest is given in vegetative propagation of parental lines as well as superior single plants. Somatic embryogenesis is an e ...

Sunflower (Helianthus annuus L.) has been cultivated both as an oilseed and as an ornamental plant. Several protocols have been described for the micropropagation, direct plant regeneration by organogenesis being acceptable for this plant species. Besides a strong genotype depend ...

The Myrtle (Myrtus communis L.) is an evergreen shrub typical of the Mediterranean area; it is an interesting plant with multipurpose use. The ornamental use takes into account the production of green cut branches for indoor decoration and production of pot plants for gardening. In this species, ...

We describe here a new tulip micropropagation method based on the cyclic shoot multiplication in presence of the thidiazuron (TDZ), which enables the production of virus-free stock plants, speeds up breeding, and provides new genotypes for the market. In our novel protocol, cyclic shoot mul ...

Procedures for somatic embryogenesis (SE) in in vitro culture of spring snowflake have been developed from different types of explants like scales and leaves isolated from bulbs, ovaries and fruits. Various plant growth regulators were tested including a cytokinin – benzyladenine (BA) ...

In this chapter, we describe a robust method for the micropropagation of Australian fan flower, Scaevola, a native plant increasingly being used in the ornamental horticulture industry. Shoot segments from different species of Scaevola can be successfully multiplied following this ...

The genomic era revolutionized evolutionary population biology. The ecological genomics of the wild progenitors of wheat and barley reviewed here was central in the research program of the Institute of Evolution, University of Haifa, since 1975 (http://evolution.haifa.ac.il). We e ...

Marigold (Tagetes erecta) is an Asteraceous plant of industrial, ornamental and medicinal importance. Tagetes erecta species, popularly known as marigold, is grown as ornamental plant and is adapted to several agro climates. Inflorescences have been utilized as pigment source for fo ...

Sequence data is crucial to our understanding of crop growth and development, as differences in DNA sequence are responsible for almost all of the heritable differences between crop varieties and ecotypes. The sequence of a genome is often referred to as the genetic blueprint, and is the founda ...

Molecular genetic markers represent one of the most powerful tools for the analysis of plant genomes and the association of heritable traits with underlying genetic variation. Molecular marker technology has developed rapidly over the last decade, with the development of high-thro ...

The study of plant genomics today in crop species that provide food, fibre, feed and energy is deeply rooted in earlier studies on model species. Model species are often diploid, with few chromosomes, small genomes and can be manipulated via plant transformation. Some model species include Arab ...

Genetic linkage maps represent the order of known molecular genetic markers along a given chromosome for a given species. This provides an insight into the organisation of a plant genome. In comparative genomics, synteny is the preserved order of genes on chromosomes of related species which ...

Large insert libraries are valuable tools for the positional cloning of genes of interest, physical mapping of chromosomes, comparative genomics, and molecular breeding. There are five types of large DNA insert libraries: cosmid, yeast artificial chromosomes (YACs), bacteriopha ...

The term ‘Proteomics’ was introduced in 1997 to describe a growing interest in the study of the proteome – the expressed protein set of an organism. As this new discipline evolved, it quickly became obvious that proteomics would be a very complex and ambitious undertaking, perhaps even more so than ge ...

Transcript abundance data from cRNA hybridizations to Affymetrix microarrays can potentially be used to identify genetic markers to facilitate high-throughput genotyping. We have shown that it is easily possible to use the information from Affymetrix expression arrays to accur ...

The essence of meristem-tip culture is the excision of the organized apex of the shoot from a selected donor plant for subsequent in vitro culture. The conditions of culture are regulated to allow only for organized outgrowth of the apex directly into a shoot, without the intervention of any advent ...

Elite strawberry plants can only be multiplied by a vegetative method. This explains the great dissemination of parasites, such as viruses, mycoplasmas, nematodes, soil fungi, and tarsonems, which are transmitted directly or indirectly to the descendants. The impossibility of effic ...