ADAPTATION TO HETEROGENEOUS ENVIRONMENTS. I. VARIATION IN HETEROPHYLLY IN<i>RANUNCULUS FLAMMULA</i>L

Cook, Stanton A.; Johnson, Michael P.

doi:10.1111/j.1558-5646.1968.tb03988.x

Cited by 73 publications

(35 citation statements)

References 24 publications

(23 reference statements)

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“…Comparative studies of species or conspecific *Correspondence populations derived from different habitats and grown across the same set of environments support the notion that plasticity can be moulded by selection, both in plants and animals (e.g. Björkman & Holmgren, 1963;Cook & Johnson, 1968;Hickman, 1975;Zimmerman, 1976;Mooney, 1980;Newman, 1988;Conover et aL, 1992) but there is still little consensus as to whether selection acts on plasticity per se (e.g. Schemer & Lyman, 1989b) or whether the reaction norm evolves indirectly through selection on phenotypes expressed in distinct environments (e.g.…”

Section: Introductionmentioning

confidence: 93%

Phenotypic plasticity in Crepis tectorum (Asteraceae): genetic correlations across light regimens

Andersson

Shaw

1994

Heredity

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Inbred F3 and F4 families from a cross between two contrasting ecotypes of Crepis tectorum were replicated in two regimes in a glasshouse to determine whether genetic tradeoffs within the reaction norm favour genetic differentiation over phenotypic plasticity in this species. There was no tradeoff in reproductive fitness (flower production) across light regimes but genetic cross-environment correlations approached unity for a wide range of characters subject to divergent selection across habitats, suggesting little genetic variation in plasticity and a limited opportunity for selection to favour broadly adapted genotypes capable of attaining the optimum phenotype in every environment. The presence of genotype-environment interaction without large changes in the ranking of genotypes over light regimes indicates a greater potential for evolutionary change in environmental sensitivity although developmental constraints may limit the range of phenotypes that can be expressed in a character. A selection analysis was conducted to determine how the average reaction norm would evolve in this system. Whereas the relationship between each trait and reproductive fitness was environment-specific, there was no change in the direction of selection between light regimes. Given the genetic correlation structure observed, one would expect some of the genetic response in one environment to carry over to the other environment.

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Section: Introductionmentioning

confidence: 93%

Phenotypic plasticity in Crepis tectorum (Asteraceae): genetic correlations across light regimens

Andersson

Shaw

1994

Heredity

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“…The potential of such developmental (or phenotypic) plasticity has recently been recognized, as a mechanism for the evolution of novel traits (review in West-Eberhard 2003). Furthermore, developmental plasticity may be crucial for living in variable environments (seasonal and nonseasonal; Cook & Johnson 1968;Shapiro 1976;Trussel & Smith 2000;Agrawal 2001) and may facilitate the spread of a species into new environments (Losos et al 2000;Agrawal 2001;Yeh & Price 2004).…”

Section: Introductionmentioning

confidence: 99%

Developmental plasticity of mating calls enables acoustic communication in diverse environments

Beckers

Schul

2008

Proc. R. Soc. B.

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Male calls of the katydid Neoconocephalus triops exhibit substantial developmental plasticity in two parameters: (i) calls of winter males are continuous and lack the verse structure of summer calls and (ii) at equal temperatures, summer males produce calls with a substantially higher pulse rate than winter males. We raised female N. triops under conditions that reliably induced either summer or winter phenotype and tested their preferences for the call parameters that differ between summer and winter males.Neither generation was selective for the presence of verses, but females had strong preferences for pulse rates: only a narrow range of pulse rates was attractive. The attractive ranges did not differ between summer and winter females. Both male pulse rate and female preference for pulse rate changed with ambient temperature, but female preference changed more than the male calls.As a result, the summer call was attractive only at 258C, whereas the slower winter call was attractive only at 208C. Thus, developmental plasticity of male calls compensates for differences in temperature depen dency between calls and preferences and enables the communication system to function in heterogeneous environments. The potential role of call plasticity during the invasion of new habitats is discussed.

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“…In the natural environment, organisms must cope with change or heterogeneity both within and between generations (Cook and Johnson, 1968;Hourdin et al, 2006). Adaptive plasticity to temporal environmental variations is common and may be important for adaptation to varying environments (Schlichting and Pigliucci, 1995;Bazzaz, 1996;Yamamoto and Tsukada, 2010).…”

Section: Introductionmentioning

confidence: 99%

Adaptation to water level variation: Responses of a floating-leaved macrophyteNymphoides peltatato terrestrial habitats

2010

Ann. Limnol. - Int. J. Lim.

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-A straightforward experimental approach was carried out to study the adaptation responses of a typical floating-leaved aquatic plant Nymphoides peltata to changes in water availability. N. peltata grown in terrestrial habitat was approximately 88.77% lower in total biomass, 62.75% higher in root biomass allocation, 80.9% higher in root-shoot ratio, and 54.5% longer in leaf longevity compared with N. peltata grown in aquatic habitats. Anatomical analyses suggest that aquatic-grown N. peltata exhibits a well-developed lacunal system in leaf, petiole, and coarse root. Moreover, aquatic-grown N. peltata had approximately a higher in lacunal system in leaf, petiole, and coarse root by 28.57%, 56.41% and 82.35%, respectively, than those of terrestrial-grown N. peltata. These results indicated that N. peltata was well adapted to the terrestrial habitat because of its biomass allocation, morphological, and anatomical strategies that depended on the increase in root biomass allocation and leaf longevity, as well as the decrease in the lacunal system volume in leaf, petiole, and coarse root. This indicates that N. peltata can develop multiple morphological and anatomical strategies, an integrated approach to enhance survival in dynamic and unpredictable environments.

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ADAPTATION TO HETEROGENEOUS ENVIRONMENTS. I. VARIATION IN HETEROPHYLLY INRANUNCULUS FLAMMULAL

Cited by 73 publications

References 24 publications

Phenotypic plasticity in Crepis tectorum (Asteraceae): genetic correlations across light regimens

Phenotypic plasticity in Crepis tectorum (Asteraceae): genetic correlations across light regimens

Developmental plasticity of mating calls enables acoustic communication in diverse environments

Adaptation to water level variation: Responses of a floating-leaved macrophyteNymphoides peltatato terrestrial habitats

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