R.E. Veilleux – författare

The 18 chapters making up "In Vitro Haploid Production in Higher Plants" are divided into two sections. Section 1 (eight chapters) covers historical and fundamental aspects of haploidy in crop improvement. Section 2 deals with methods of haploid production, including anther culture, micropore culture, ovary culture, pollination with irradiated pollen, in vitro pollination and special culture techniques, including polyhaploid production in the Triticeae by sexual hybridization, the influence of ethylene and gelling agents on anther culture, conditional lethal markers, and methods of chromosome doubling.

This second volume of "In Vitro Haploid Production in Higher Plants" is broadly concerned with special applications and phenomena uniquely associated with haploid plants and their derivation. The first section (18 chapters) covers such topics as: genetic stability of microspore-derived doubled haploids; transformation of pollen and microspores; gametoclonal variation; bread-making quality of wheat doubled haploids; DNA amplification of doubled haploids; RFLP mapping with haploids; genetics of green plant regeneration from anther culture; combining mutation breeding with haploidy for the improvement of rapeseed; segregation distortion among anther-derived plants; chromosome engineering; self-incompatibility and pollen rejection; statistical models for the detection of quantitative trait loci; haploid protoplasts; gametosomatic hybrids; potential of using dihaploid/diploid genotypes in breeding potato by somatic hybridization; cryopreservation; prospects of microspore-derived embryos for artificial seeds; and the future prospects for crop improvement through anther and microspore culture.

Since the beginning of agricultural production, there has been a continuous effort to grow more and better quality food to feed ever increasing popula­ tions. Both improved cultural practices and improved crop plants have alIowed us to divert more human resources to non-agricultural activities while still increasing agricultural production. Malthusian population predictions continue to alarm agricultural researchers, especially plant breeders, to seek new technologies that will continue to allow us to produce more and better food by fewer people on less land. Both improvement of existing cultivars and development of new high-yielding cultivars are common goals for breeders of alI crops. In vitro haploid production is among the new technologies that show great promise toward the goal of increasing crop yields by making similar germplasm available for many crops that was used to implement one of the greatest plant breeding success stories of this century, i. e. , the development of hybrid maize by crosses of inbred lines. One of the main applications of anther culture has been to produce diploid homozygous pure lines in a single generation, thus saving many generations of backcrossing to reach homozygosity by traditional means or in crops where self-pollination is not possible. Because doubled haploids are equivalent to inbred lines, their value has been appreciated by plant breeders for decades. The search for natural haploids and methods to induce them has been ongoing since the beginning of the 20th century.

Since the beginning of agricultural production, there has been a continuous effort to grow more and better quality food to feed ever increasing popula­ tions. Both improved cultural practices and improved crop plants have allowed us to divert more human resources to non-agricultural activities while still increasing agricultural production. Malthusian population predictions continue to alarm agricultural researchers, especially plant breeders, to seek new technologies that will continue to allow us to produce more and better food by fewer people on less land. Both improvement of existing cultivars and development of new high-yielding cultivars are common goals for breeders of all crops. In vitro haploid production is among the new technologies that show great promise toward the goal of increasing crop yields by making similar germplasm available for many crops that was used to implement one of the greatest plant breeding success stories of this century, i. e. , the development of hybrid maize by crosses of inbred lines. One of the main applications of anther culture has been to produce diploid homozygous pure lines in a single generation, thus saving many generations of backcrossing to reach homozygosity by traditional means or in crops where self-pollination is not possible. Because doubled haploids are equivalent to inbred lines, their value has been appreciated by plant breeders for decades. The search for natural haploids and methods to induce them has been ongoing since the beginning of the 20th century.

This fifth and final volume on "In Vitro Haploid Production in Higher Plants" comprises 13 chapters and is divided into three sections. Most chapters are crop specific and each chapter contains an introduction about the selected plant, the techniques (anther culture, microspore culture, ovary/ovule culture) that have been successfully used for haploid production, the factors that have influenced the success of these techniques, the identification and genetic characterization of haploid regenerants, the application of haploids in breeding, and a brief conclusion on the potential of haploid breeding in the specific crop. The chapters contained in Section 1 focus on selected oil crops, including linseed (Linum usitatissimum), sunflower (Helianthus annuus) and niger (Guizotia abyssinica). Section 2 deals with ornamental plants including Petunia, lily (Lilium spp.), tulip (Tulipa spp.) and Camellia (japonica).

The 18 chapters making up In Vitro Haploid Production in Higher Plants are divided into two sections. Section 1 (eight chapters) covers historical and fundamental aspects of haploidy in crop improvement. Section 2 deals with methods of haploid production, including anther culture, micropore culture, ovary culture, pollination with irradiated pollen, in vitro pollination, and special culture techniques, including polyhaploid production in the Triticeae by sexual hybridization, the influence of ethylene and gelling agents on anther culture, conditional lethal markers, and methods of chromosome doubling.

Since the beginning of agricultural production, there has been a continuous effort to grow more and better quality food to feed ever increasing popula­ tions. Both improved cultural practices and improved crop plants have al­ lowed us to divert more human resources to non-agricultural activities while still increasing agricultural production. Malthusian population predictions continue to alarm agricultural researchers, especially plant breeders, to seek new technologies that will continue to allow us to produce more and better food by fewer people on less land. Both improvement of existing cultivars and development of new high-yielding cultivars are common goals for breeders of all crops. In vitro haploid production is among the new technologies that show great promise toward the goal of increasing crop yields by making similar germplasm available for many crops that was used to implement one of the greatest plant breeding success stories of this century, i. e. , the development of hybrid maize by crosses of inbred lines. One of the main applications of anther culture has been to produce diploid homozygous pure lines in a single generation, thus saving many generations of backcrossing to reach homozygosity by traditional means or in crops where self-pollination is not possible. Because doubled haploids are equivalent to inbred lines, their value has been appreciated by plant breeders for decades. The search for natural haploids and methods to induce them has been ongoing since the beginning of the 20th century.

This third volume on In Vitro Haploid Production in Higher Plants consists of 20 chapters. Each chapter contains some introductory material on the selected plant, the techniques used most successfully for haploid production (anther culture, microspore culture, and ovary culture), the factors that influence the success of these techniques, the identification and genetic characterization of haploid regenerants, the applications of haploids in breeding, and a brief conclusion on the potential of haploid breeding for the crop. The plants covered include vegetable crops (Allium spp., Capsicum, Chicorium, Cucumis, Solanum melongena, Solanum tuberosum); fruit crops (Malus, Fragaria, Vitis); and other miscellaneous crops (Beta, Coffea, Ginkgo, Glycine, Medicago, Saccarum, Sinocalamus latiflora, forest trees). Some chapters also cover protoplast manipulation and genetic transformation.

Since the beginning of agricultural production, there has been a continuous effort to grow more and better quality food to feed ever increasing popula­ tions. Both improved cultural practices and improved crop plants have allowed us to divert more human resources to non-agricultural activities while still increasing agricultural production. Malthusian population predictions continue to alarm agricultural researchers, especially plant breeders, to seek new technologies that will continue to allow us to produce more and better food by fewer people on less land. Both improvement of existing cultivars and development of new high-yielding cultivars are common goals for breeders of all crops. In vitro haploid production is among the new technologies that show great promise toward the goal of increasing crop yields by making similar germplasm available for many crops that was used to implement one of the greatest plant breeding success stories of this century, i. e. , the development of hybrid maize by crosses of inbred lines. One of the main applications of anther culture has been to produce diploid homozygous pure lines in a single generation, thus saving many generations of backcrossing to reach homozygosity by traditional means or in crops where self-pollination is not possible. Because doubled haploids are equivalent to inbred lines, their value has been appreciated by plant breeders for decades. The search for natural haploids and methods to induce them has been ongoing since the beginning of the 20th century.

This fifth and final volume on In Vitro Haploid Production in Higher Plants comprises 13 chapters and is divided into three sections. Most chapters are crop specific and each chapter contains an introduction about the selected plant, the techniques (anther culture, microspore culture, ovary/ovule culture) that have been successfully used for haploid production, the factors that have influenced the success of these techniques, the identification and genetic characterization of haploid regenerants, the application of haploids in breeding, and a brief conclusion on the potential of haploid breeding in the specific crop. The chapters contained in Section 1 focus on selected oil crops, including linseed (Linum usitatissimum), sunflower (Helianthus annuus) and niger (Guizotia abyssinica). Section 2 deals with ornamental plants including (Petunia, lily (Lilium spp.), tulip (Tulipa spp.), and Camellia japonica). The final Section 3 comprises miscellaneous plants including various fruit, vegetable, or specialty crops (asparagus (Asparagus officinalis), tobacco (Nicotiana spp.), cotton (Gossypium spp.), gynogenic haploids in angiosperms, Citrus, tomato (Lycopersicon esculentum), and interspecific somatic hybrids of potato (Solanum brevidens and S. tuberosum)). Some chapters also include a discussion of the potential of protoplast manipulations and genetic transformation of the particular crop under discussion.

Since the beginning of agricultural production, there has been a continuous effort to grow more and better quality food to feed ever increasing popula­ tions. Both improved cultural practices and improved crop plants have al­ lowed us to divert more human resources to non-agricultural activities while still increasing agricultural production. Malthusian population predictions continue to alarm agricultural researchers, especially plant breeders, to seek new technologies that will continue to allow us to produce more and better food by fewer people on less land. Both improvement of existing cultivars and development of new high-yielding cultivars are common goals for breeders of all crops. In vitro haploid production is among the new technologies that show great promise toward the goal of increasing crop yields by making similar germplasm available for many crops that was used to implement one of the greatest plant breeding success stories of this century, i. e. , the development of hybrid maize by crosses of inbred lines. One of the main applications of anther culture has been to produce diploid homozygous pure lines in a single generation, thus saving many generations of backcrossing to reach homozygosity by traditional means or in crops where self-pollination is not possible. Because doubled haploids are equivalent to inbred lines, their value has been appreciated by plant breeders for decades. The search for natural haploids and methods to induce them has been ongoing since the beginning of the 20th century.

Since the beginning of agricultural production, there has been a continuous effort to grow more and better quality food to feed ever increasing popula­ tions. Both improved cultural practices and improved crop plants have allowed us to divert more human resources to non-agricultural activities while still increasing agricultural production. Malthusian population predictions continue to alarm agricultural researchers, especially plant breeders, to seek new technologies that will continue to allow us to produce more and better food by fewer people on less land. Both improvement of existing cultivars and development of new high-yielding cultivars are common goals for breeders of all crops. In vitro haploid production is among the new technologies that show great promise toward the goal of increasing crop yields by making similar germplasm available for many crops that was used to implement one of the greatest plant breeding success stories of this century, i. e. , the development of hybrid maize by crosses of inbred lines. One of the main applications of anther culture has been to produce diploid homozygous pure lines in a single generation, thus saving many generations of backcrossing to reach homozygosity by traditional means or in crops where self-pollination is not possible. Because doubled haploids are equivalent to inbred lines, their value has been appreciated by plant breeders for decades. The search for natural haploids and methods to induce them has been ongoing since the beginning of the 20th century.

Since the beginning of agricultural production, there has been a continuous effort to grow more and better quality food to feed ever increasing popula­ tions. Both improved cultural practices and improved crop plants have alIowed us to divert more human resources to non-agricultural activities while still increasing agricultural production. Malthusian population predictions continue to alarm agricultural researchers, especially plant breeders, to seek new technologies that will continue to allow us to produce more and better food by fewer people on less land. Both improvement of existing cultivars and development of new high-yielding cultivars are common goals for breeders of alI crops. In vitro haploid production is among the new technologies that show great promise toward the goal of increasing crop yields by making similar germplasm available for many crops that was used to implement one of the greatest plant breeding success stories of this century, i. e. , the development of hybrid maize by crosses of inbred lines. One of the main applications of anther culture has been to produce diploid homozygous pure lines in a single generation, thus saving many generations of backcrossing to reach homozygosity by traditional means or in crops where self-pollination is not possible. Because doubled haploids are equivalent to inbred lines, their value has been appreciated by plant breeders for decades. The search for natural haploids and methods to induce them has been ongoing since the beginning of the 20th century.

The 18 chapters making up In Vitro Haploid Production in Higher Plants are divided into two sections. Section 1 (eight chapters) covers historical and fundamental aspects of haploidy in crop improvement. Section 2 deals with methods of haploid production, including anther culture, micropore culture, ovary culture, pollination with irradiated pollen, in vitro pollination, and special culture techniques, including polyhaploid production in the Triticeae by sexual hybridization, the influence of ethylene and gelling agents on anther culture, conditional lethal markers, and methods of chromosome doubling.