Frequency of somaclonal variation in plants of black spruce (Picea mariana, Pinaceae) and white spruce (P. glauca, Pinaceae) derived from somatic embryogenesis and identification of some factors involved in genetic instability

• Published in: American journal of botany Vol. 86; no. 10; pp. 1373 - 1381
• Main Authors: Tremblay, Laurence, Levasseur, Caroline, Tremblay, Francine M.
• Format: Journal Article
• Language: English
• Published: United States Botanical Soc America 01.10.1999; Botanical Society of America
• Subjects: Aneuploidy; chromosome counts; chromosome number; Chromosomes; clones; color; conifer needles; conifers; duration; dwarfing; frequency; Genetic variation; height; micropropagation; morphological variations; mortality; phenotype; Phenotypes; Physiology and Development; Picea; Picea glauca; Picea mariana; Pinaceae; plagiotropism; plant characteristics; Plant genetics; Plant growth; Plant morphology; plant physiology; Plants; Somaclonal variation; Somatic embryogenesis; stability; stem form

Plants of black spruce (Picea mariana, N = 7047 individuals) and white spruce (P. glauca, N = 3995 individuals) were regenerated from a total of 87 clones over a 5-yr period by somatic embryogenesis to study factors that might be associated with the appearance of variant phenotypes. Morphological ev...