Cytogenetics of the Festuca-Lolium Complex Relevance to Breeding

Main Author: Jauhar, Prem P.
Corporate Author: SpringerLink (Online service)
Format: eBook
Language:English
Published: Berlin, Heidelberg Springer Berlin Heidelberg 1993, 1993
Edition:1st ed. 1993
Series:Monographs on Theoretical and Applied Genetics
Subjects:
Online Access:
Collection: Springer Book Archives -2004 - Collection details see MPG.ReNa
Table of Contents:
  • a Fascinating Group of Grasses
  • 1.1 Agronomic Importance
  • 1.2 Distribution
  • 1.3 Genetic Systems and Strategy for Germplasm Collection and Preservation
  • 2 Taxonomic Treatments
  • 2.1 General Considerations
  • 2.2 Taxonomic Value of Epidermal Patterns and Leaf Sections
  • 2.3 Limitations Imposed by Natural Introgression
  • 2.4 The Lolium-Festuca-Vulpia Complex
  • 2.5 Lolium L
  • 2.6 Festuca L
  • 2.7 Festuca arundinacea, a Compilospecies
  • 2.8 Cytotaxonomic Affinities: Phylogenetic Considerations in the Festuca-Vulpia-Lolium Complex
  • 3 Karyotypes and Species Evolution and Divergence
  • 3.1 Karyotypic Features and Taxonomy
  • 3.2 General Techniques of Studying Somatic Chromosomes
  • 3.3 Chromosome Size Variation Among Diploids and Polyploids
  • 3.4 Evolution by Increase in Chromosome Numbers
  • 3.5 Evolution by Changes in DNA Content
  • 3.6 DNA Content and Growth Habit
  • 3.7 Constitutive Heterochromatin
  • 3.8 Nucleolar Organizer Activity
  • Genetic Engineering
  • 14.2 Meristem-Tip Culture: a Method to Eliminate Pathogens
  • 14.3 In Vitro Callus Cultures and Screening for Tall Fescue Endophyte
  • 14.4 Organogenesis and Embryogenesis
  • 14.5 In Vitro Cultures and Plant Regeneration
  • 14.6 Anther Culture
  • 14.7 Somaclonal and Gametoclonal Variation
  • 14.8 Colchicine-Induced Variation
  • 14.9 Environmentally Induced Somatic Variation
  • 14.10 Cytogenetic Manipulation of Hybrid Material
  • 14.11 In Vitro Chromosome Doubling
  • 14.12 Protoplast Cultures: Regeneration of Plants
  • 14.13 Genetic Manipulation at the Cellular Level
  • 15 Conclusions and Perspectives
  • References
  • a Generalized Picture
  • 11.7 Intraspecific Hybrids in Lolium L
  • 11.8 Intraspecific Hybrids in Festuca L.
  • 11.9 Interspecific Hybrids in Lolium
  • 11.10 Hybrids Between the Two Ryegrasses: Development of Superior Germplasm
  • 11.11 Interspecific Hybrids in Festuca
  • 11.12 F. arundinacea (6x) x F. gigantea (6x) Hybridization: Development of Superior Germplasm
  • 12 Intergeneric Hybridization, Genome Relationships, and Plant Improvement
  • 12.1 Possible Affinity Between Festuca and Other Grass Genera
  • 12.2 General Affinities Between Lolium and Festuca
  • 12.3 Natural Hybrids
  • 12.4 Synthetic Hybrids
  • 12.5 Variation in Chromosome Size Between Diploid Species and Pairing in Their Hybrids
  • 12.6 Intergeneric Hybridization and Production of Superior Breeding Material
  • 6.3 Breeding Implications
  • 7 B Chromosomes
  • 7.1 Occurrence and Adaptive Value
  • 7.2 Pairing Among B Chromosomes in Hexaploid Tall Fescue
  • 7.3 Effect on Genetic Recombination
  • 7.4 Suppression of Homoeologous Pairing in Hybrids
  • 7.5 B Chromosomes in Relation to Plant Breeding
  • 8 Natural and Induced Polyploidy
  • 8.1 Natural Polyploidy and Its Adaptive Value in Festuca
  • 8.2 Absence of Natural Polyploidy in Lolium
  • 8.3 Induced Polyploidy in Lolium
  • 8.4 Distinguishing Features of Synthetic Polyploids of Lolium
  • 8.5 Induced Polyploidy in Festuca
  • 8.6 Occurrence of Aneuploids in Synthetic Polyploids
  • 8.7 Polyploidy in Relation to Plant Breeding
  • 9 Haploidy
  • 9.1 Lolium Haploids
  • 9.2 Festuca Haploids
  • 10 Aneuploids
  • 10.1 Lolium
  • 10.2 Hexaploid Tall Fescue
  • 11 Intra- and Inter-Specific Hybridization, Genome Relationships, and Plant Improvement
  • 11.1 General Importance
  • 11.2 Crossing Techniques
  • 11.3 The Embryo Rescue Technique
  • a Case of Desynapsis
  • 5.4 Formation of Multivalents: Genetic Bases
  • 5.5 Haplo-Insufficiency of the Pairing Control Genes?
  • 5.6 Genetic Repression of Diploidizing Gene(s): an Example
  • 6 Phylogenetic and Breeding Implications of the Genetic Control of Chromosome Pairing
  • 6.1 Phylogenetic Relationships
  • 6.2 Evolutionary Implications