Narrow Hybrid Zone Between Two Subspecies of Big Sagebrush, Artemisia tridentata (Asteraceae). III. Developmental Instability

Freeman, D. Carl; Graham, John H.; Byrd, D. W.; McArthur, E. Durant; Turner, William

doi:10.2307/2446068

Cited by 21 publications

(4 citation statements)

References 18 publications

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“…Little is known, however, as to how developmental disorders are connected with plant metabolism, and how these affect plant performance (Sakai and Shimamoto 1965;Freeman et al 1995). For the mountain birch (Betula pubescens ssp.…”

Section: Introductionmentioning

confidence: 99%

Covariation of fluctuating asymmetry, herbivory and chemistry during birch leaf expansion

et al. 2000

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Fluctuating asymmetry (FA) is used to describe developmental instability in bilateral structures. In trees, high FA of leaves has been assumed to indicate the level of environmental or genetic stress, and for herbivores leaves from such trees have been shown to be in some cases (though not invariably) of higher quality compared to trees with symmetrical leaves. We demonstrated that FA of birch leaves correlated positively with growth rate of leaves, and with the amount of leaf biomass consumed by larvae of the geometrid Epirrita autumnata. Since asymmetry per se cannot define leaf quality for a herbivore, we determined the biochemical compounds which covary with the degree of foliage FA, in order to elucidate relationships between leaf FA, chemistry and herbivory. High foliar FA was characteristic of birches with high initial concentrations, and rapid seasonal decline in the concentrations of gallic acid and hydrolysable tannins, and with rapid seasonal changes in the concentrations of flavonoid-glycosides and sugars. In contrast, leaf FA was not related to concentrations of proanthocyanidins, protein-bound amino acids or soluble phenylalanine, the precursor of proanthocyanidins and proteins with aromatic amino acids. The positive correlation between leaf FA and consumption by E. autumnata was presumably related to the previously demonstrated compensatory consumption of E. autumnata to high concentrations of foliar gallotannins. Furthermore, sugars are well-known feeding stimulants. We propose that the variable results in studies correlating leaf FA and herbivory may stem from variable chemical associations of FA in different plants and of species-specific effects of compounds on insects.

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Section: Introductionmentioning

confidence: 99%

Covariation of fluctuating asymmetry, herbivory and chemistry during birch leaf expansion

et al. 2000

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“…Paxman (1956) and Sakai and Shimamoto (1965), following Mather's (1953) pioneering work with Drosophila, showed that developmental instability could be estimated in plants. The (Freeman et al , 1995Møller 1995;Evans and Marshall 1996;Kozlov et al 1996;Sherry andLord 1996a, 1996b;Rettig et al 1997;Zvereva et al 1997;Wilsey et al 1998). Nevertheless, Palmer (1996 suggested that plants may have limited usefulness in fluctuating asymmetry studies simply because their parts are too plastic.…”

Section: Introductionmentioning

confidence: 99%

Within‐ and Among‐Individual Variation in Fluctuating Asymmetry of Leaves in the Fig (Ficus caricaL.)

Cowart¹,

Graham²

1999

International Journal of Plant Sciences

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“…Based on field survey, Møller (1998) observed significantly higher FA of plant leaves at the deserted Chernobyl nuclear power station, where plants showed higher FA due to alternation of certain specific genes in contrast to the same species at the unpolluted sites. Besides, some studies demonstrated intraspecies hybrids have lower FA trait than interspecies hybrids, and the latter usually showed higher FA due to the increasing developmental instability (Freeman et al, 1995). Here, genomic stress was responsible for increasing developmental instability.…”

Section: Discussionmentioning

confidence: 96%

Leaf developmental stability of Platanus acerifolia under urban environmental stress and its implication as an environmental indicator

Zhang

Wang

2006

Front. Biol. China

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Narrow Hybrid Zone Between Two Subspecies of Big Sagebrush, Artemisia tridentata (Asteraceae). III. Developmental Instability

Cited by 21 publications

References 18 publications

Covariation of fluctuating asymmetry, herbivory and chemistry during birch leaf expansion

Covariation of fluctuating asymmetry, herbivory and chemistry during birch leaf expansion

Within‐ and Among‐Individual Variation in Fluctuating Asymmetry of Leaves in the Fig (Ficus caricaL.)

Leaf developmental stability of Platanus acerifolia under urban environmental stress and its implication as an environmental indicator

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