Quantitative-genetic analysis of the early juvenile traits in Iris pumila

• Published in: Archives of biological sciences Vol. 47; no. 3-4
• Main Authors: Avramov, S, Tucic, B. (Institute for Biological Sciences "Sinisa Stankovic", Belgrade (Yugoslavia). Department of Evolutionary Biology)
• Format: Journal Article
• Language: English
• Published: 1995
• Subjects: ANATOMIA DE LA PLANTA; ANATOMIE VEGETALE; ESTADO JUVENIL DE LAS PLANTAS; GENE; GENES; GERMINACION; GERMINATION; IRIS; PARAMETRE GENETIQUE; PARAMETROS GENETICOS; STADE JUVENILE DES PLANTES
• ISSN: 0354-4664

A half-sib crossing design was applied to individual clones plants (Iris pumila) raised in the garden and progeny performance under high and low light level was studied within a growth room. Nested mixed model ANOVAs performed across treatments detected significant inter-sire effects only for germination date, while significant inter-dam effects were evaluated on all but two juvenile traits. The ability to detect significant the between-dam effects within each light treatment was observed to be trait-specific. Variance components analyses across treatments revealed the additive genetic variance to be considerable lower than nonadditive genetic plus maternal-effects variance. A rather high contribution of the nonadditive genetic plus maternal effects component of the genotype x environment (treatmen and/or replicate) interaction was also detected on all but two seedling traits. Similar trend was observed within the light treatments. Broad-sense heritability estimates within each light intensity appeared to be high for all but the morphological traits expressed at the high light availability.