Publications (3)0 Total impact
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01/2008; 7:765-775.
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T Giraud,
R Yockteng,
S Marthey,
H Chiapello,
O Jonot, M López-Villavicencio,
D M de Vienne,
M E Hood,
G Refrégier,
A Gendrault-Jacquemard,
P Wincker,
C Dossa
01/2008; 8:387-392.
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[show abstract]
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ABSTRACT: tested for sex-differential pollen limitation at the flower level, comparing fruit production and fecundity between
open-pollinated and hand-pollinated flowers of Gypsophila repens (Caryophyllaceae) over two years. No sex
difference in pollen limitation was found. Hand-pollination increased fruit and seed production in the first
year of the study but not in the second, and it actually decreased fruit set in the latter year, although overall
fecundity was higher in that year. Ovule number differed between years, with perfect flowers containing more
ovules in the second year. Gypsophila repens harbors the anther smut fungus Microbotryum violaceum, which
infects and sterilizes many species of Caryophyllaceae. In G. repens, however, some infected plants are capable
of seed production, although their fecundity is far lower than that of healthy plants. Seed production was not
pollen limited even with the high percentage of infected individuals that could reduce the quantity of pollen
available at the population level.
01/2003; 164:899–905.