Comparative analysis of biological and ecological differentiation of Anemone palmata L. (Ranunculaceae) in the western Mediterranean (France and Spain): an assessment of rarity and population persistence

Mèdail, Frédéric; Ziman, Svetlana N.; Boscaiu, Mónica; Riera, Jesús; Lambrou, Maria; Véla, Errol; Dutton, Brian; Ehrendorfer, Friedrich

doi:10.1046/j.1095-8339.2002.00086.x

Cited by 21 publications

(24 citation statements)

References 37 publications

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“…Jana et al [24] found that the autotetraploid individuals had larger flowers than their diploid counterparts more often than expected by chance and also documented that autopolyploid species and genera should have larger inflorescences than diploid species and genera. Bigger flowers in polyploids were also subsequently confirmed by various researchers [25][26][27]. The occurrence of five petals in some of the flowers of autotetraploids is ambiguous however it might be possible that colchicine induced disturbed male meiosis may lead to some disturbance in particular gene(s) that governs the typical «cross-bearing» four-petalous condition of the present crop thereby resulting more than 4-petals.…”

Section: Induced Polyploidization In Brassica Campestris L (Brassicamentioning

confidence: 62%

Induced polyploidization in Brassica campestris L. (Brassicaceae)

Kumar

Dwivedi

2014

Cytol. Genet.

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Section: Induced Polyploidization In Brassica Campestris L (Brassicamentioning

confidence: 62%

Induced polyploidization in Brassica campestris L. (Brassicaceae)

Kumar

Dwivedi

2014

Cytol. Genet.

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“…To demonstrate that temperature limits species distributions requires the use of populations collected from range margins because marginal populations are often phenotypically or genetically divergent from more centrally located populations (Lesica and Allendorf 1995;Perez-Tris et al 2000;Medail et al 2002;Van Rossum et al 2003;Faugeron et al 2004) and may be differently adapted to temperature conditions at or beyond the range margin. However, in this study, populations from the range center and range margin of each species did not differ in growth or leaf physiological response to temperature, with the exception of M. cardinalis g s and C i /C a .…”

Section: Intraspecific Variation In Performance Versus Temperaturementioning

confidence: 99%

Growth and leaf physiology of monkeyflowers with different altitude ranges

Angert

2006

Oecologia

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Every species is limited both geographically and ecologically to a subset of available habitats, yet for many species the causes of distribution limits are unknown. Temperature is thought to be one of the primary determinants of species distributions along latitudinal and altitudinal gradients. This study examined leaf physiology and plant performance under contrasting temperature regimes of sister species of monkeyflower, Mimulus cardinalis and Mimulus lewisii (Phrymaceae), that differ in altitude distribution to test the hypothesis that temperature is the primary determinant of differences in fitness versus altitude. Each species attained greatest aboveground biomass, net photosynthetic rate, and effective quantum yield of photosystem II when grown under temperatures characteristic of the altitudinal range center. Although both species exhibited greater stem length, stomatal conductance, and intercellular CO2 concentration in hot than in cold temperatures, these traits showed much greater reductions under cold temperature for M. cardinalis than for M. lewisii. Survival of M. lewisii was also sensitive to temperature, showing a striking decrease in hot temperatures. Within each temperature regime, the species native to that temperature displayed greatest growth and leaf physiological capacity. Populations from the altitude range center and range margin of each species were used to examine population differentiation, but central and marginal populations did not differ in most growth or leaf physiological responses to temperature. This study provides evidence that M. cardinalis and M. lewisii differ in survival, growth, and leaf physiology under temperature regimes characterizing their contrasting low and high altitude range centers, and suggests that the species' altitude range limits may arise, in part, due to metabolic limitations on growth that ultimately decrease survival and limit reproduction.

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“…Médail et al (2002) noted large differences in fruit size among A. palmata populations in the western Mediterranean region. We infer that the diagnostic value of fruit size is not high.…”

Section: Discussionmentioning

confidence: 99%