Measurements of selection on floral traits in black mustard, Brassica nigra
نویسندگان
چکیده
منابع مشابه
Measurements of selection on floral traits in black mustard, Brassica n&a
The large diversity of floral displays in angiosperms has been attributed largely to natural selection exerted by animal pollinators (Darwin, 1859; Grant and Grant, 1965; Waser, 1983). Quantitative measurements of selection on floral traits have only been made recently, however, and only on a handful of plant species (Campbell, 1989; Galen, 1989; Schemske and Horvitz, 1989; Campbell et al., 199...
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Methyl jasmonate and Epi-brassinolide as plant growth regulators have significant biological effects on plant growth, including increased tolerance to salt stress in plants. In this study, the effects of salinity stress and its interaction with methyl jasmonate and Epi-brassinolide on chlorophyll concentration, rate of photosynthesis, transpiration, stomatal conductance and resistance and chlor...
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The paper presents a real-time PCR method allowing the simultaneous detection of traces of black mustard (Brassica nigra) and brown mustard (Brassica juncea) in food. The primers and the probe target the B. nigra partial RT gene for reverse transcriptase from gypsy-like retroelement 13G42-26. The real-time PCR method does not show any cross-reactivity with other Brassicaceae species with the ex...
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This study investigates the effects of temperature and pressure on inactivation of myrosinase extracted from black, brown and yellow mustard seeds. Brown mustard had higher myrosinase activity (2.75 un/mL) than black (1.50 un/mL) and yellow mustard (0.63 un/mL). The extent of enzyme inactivation increased with pressure (600-800 MPa) and temperature (30-70° C) for all the mustard seeds. However,...
متن کاملCommunity complexity drives patterns of natural selection on a chemical defense of Brassica nigra.
Plants interact with many different species throughout their life cycle. Recent work has shown that the ecological effects of multispecies interactions are often not predictable from studies of the component pairwise interactions. Little is known about how multispecies interactions affect the evolution of ecologically important traits. We tested the direct and interactive effects of inter- and ...
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ژورنال
عنوان ژورنال: Journal of Evolutionary Biology
سال: 1997
ISSN: 1010-061X,1420-9101
DOI: 10.1046/j.1420-9101.1997.10030327.x