Developmental stability of Iris pumila flower traits: a common garden experiment
2012
Miljković, D., Institute for Biological Research Siniša Stanković, Belgrade (Serbia)
Iris pumila natural populations usually occur in two different habitat types: dune and forest. These Iris pumila habitats differ in many abiotic environmental factors, but mostly in available light intensity and quality. The effects of different light intensity on the developmental stability of Iris pumila floral traits were analyzed on clones taken from two different natural light habitat types that were raised in contrasting light treatments in experimental garden conditions (common garden experiment). As an indicator of developmental stability, we used two fluctuating asymmetry indices (FA1 and FA8a) of three bilateral symmetric traits of Iris pumila flower (FW-fall width, SW-standard width and STW- style branch width). In addition, statistically significant treatment x population interaction was observed for style width. According to the presented results, the observed FA patterns of particular traits did not reflect the whole organism buffering capacity under the given environmental conditions.
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