Results 181 to 190 of about 2,145 (200)
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Late-acting self-incompatibility in Acca sellowiana (Myrtaceae)1
Australian Journal of Botany, 2011Acca sellowiana (Berg) Burret is a predominantly allogamous species with hermaphrodite flowers that has barriers to self-fertilisation such as dichogamy by protogyny and self-incompatibility. This study aimed to identify when self-incompatibility occurs in A. sellowiana flowers submitted to self-pollinations.
Taciane Finatto +7 more
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Floral biology and late-acting self-incompatibility in Jacaranda racemosa (Bignoniaceae)
Australian Journal of Botany, 2006Breeding-system studies have been conducted with 38 of the approximately800 species of Bignoniaceae, and self-incompatibility was found in 31 of these. In species for which the site of self-incompatibility barrier was studied, self-pollinated flowers consistently failed to develop into fruits, even though pollen tubes grew down to the ovary and ...
Bittencourt, N. S., Semir, J.
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First evidence of late‐acting self‐incompatibility in the Aristolochiaceae
Plant BiologyAbstract Most Aristolochiaceae species studied so far are from temperate regions, bearing self‐compatible protogynous trap flowers. Although self‐incompatibility has been suggested for tropical species, the causes of self‐sterility in this family remain unknown.
C. A. Matallana‐Puerto +5 more
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Ovarian and other late-acting self-incompatibility systems
1994In a recent review of self-incompatibility (SI) in flowering plants, Dickinson (1990) noted that ‘SI in angiosperms is probably the best defined cellular communication system in the plant kingdom. Its genetic basis is now well established, the cells involved are clearly identifiable, the time of interaction is known, and the consequences of the ...
Tammy L. Sage +2 more
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Late‐Acting Self‐Incompatibility and Other Breeding Systems inTabebuia(Bignoniaceae)
International Journal of Plant Sciences, 2005Although breeding system investigations were previously performed in only nine of the 100 Tabebuia species, indications of self‐incompatibility have been found in all of them, and the four species studied for the site of incompatibility reaction showed some kind of late‐acting self‐incompatibility. Polyembryony has been found in T.
Nelson Sabino Bittencourt Jr. +1 more
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Late‐Acting Self‐Incompatibility inIpomopsis tenuifolia(Gray) V. Grant (Polemoniaceae)
International Journal of Plant Sciences, 2006Several different self‐incompatibility (SI) syndromes have been previously reported from Polemoniaceae, including differences in genetic control, timing of the response, and the location of pollen tube inhibition. In order to examine the evolutionary linkage between genetic control and site of pollen tube inhibition, crossing experiments and ...
Tasha LaDoux, Elizabeth A. Friar
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Plant Biology, 2016
Abstract Mixed cross and self‐pollen load on the stigma (mixed pollination) of species with late‐acting self‐incompatibility system (LSI) can lead to self‐fertilized seed production. This “cryptic self‐fertility” may allow selfed seedling development in species otherwise largely self‐sterile. Our aims were to check if mixed pollinations would lead to
M. O. Duarte +4 more
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Abstract Mixed cross and self‐pollen load on the stigma (mixed pollination) of species with late‐acting self‐incompatibility system (LSI) can lead to self‐fertilized seed production. This “cryptic self‐fertility” may allow selfed seedling development in species otherwise largely self‐sterile. Our aims were to check if mixed pollinations would lead to
M. O. Duarte +4 more
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Botanica Acta, 1993
AbstractThe neotropical trees Chorisia chodatii, C. speciosa, Tabebuia caraiba and T. ochracea show late‐acting self‐incompatibility. Accumulated ovule penetrations following self‐pollinations were similar to those in crosses. During the six to eight day period following pollination, in both selfed and crossed ovules, a resting zygote with initial ...
P. E. Gibbs, Marta Bianchi
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AbstractThe neotropical trees Chorisia chodatii, C. speciosa, Tabebuia caraiba and T. ochracea show late‐acting self‐incompatibility. Accumulated ovule penetrations following self‐pollinations were similar to those in crosses. During the six to eight day period following pollination, in both selfed and crossed ovules, a resting zygote with initial ...
P. E. Gibbs, Marta Bianchi
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