Results 181 to 190 of about 3,786 (194)

S-RNase uptake by compatible pollen tubes in gametophytic self-incompatibility

Nature, 2000
Many flowering plants avoid inbreeding through a genetic mechanism termed self-incompatibility. An extremely polymorphic S-locus controls the gametophytic self-incompatibility system that causes pollen rejection (that is, active arrest of pollen tube growth inside the style) when an S-allele carried by haploid pollen matches one of the S-alleles ...
D T, Luu, X, Qin, D, Morse, M, Cappadocia   +3 more
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Pollen transfer dynamics and the evolution of gametophytic self-incompatibility

Journal of Evolutionary Biology, 1999
Abstract Recent studies of mating system evolution have attempted to include aspects of pollination biology in analysis of both theoretical models and experimental systems. In light of this growing trend, we propose a simple population genetic model for the evolution of gametophytic self-incompatibility, incorporating parameters for ...
null Steinbachs, null HolSinger
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Gametophytic self-incompatibility in eudicots

2017
The S-RNase based gametophytic self-incompatibility (GSI) system is a genetic mechanism present in Solanaceae, Plantaginaceae, Rosaceae, and Rubiaceae, that prevents self-fertilization. This system emerged before the split between Asteridae and Rosidae, about 120 million years ago (MYa), and thus, it is expected to be present in many self-incompatible (
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A gene action model to explain gametophytic self-incompatibility

Euphytica, 1966
Gametophytic self-incompatibility in flowering plants can be explained in terms of recent concepts of gene action. The S alleles may be assumed to be regulators which produce monomers of a dimer repressor controlling a high rate of growth operon in the pollen tube.
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Molecular Genetics of Gametophytic Self-incompatibility in Solanaceae

1992
Self-incompatibility exhibited by members of the Solanaceae family is of gametophytic type and, in the simplest case, is controlled by a single multiallelic locus called the S-locus. (For a comprehensive treatise on the self-incompatibility system refer to the monograph by de Nettancourt, 1977.) Fertilization is blocked when the S-allele carried by the
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Molecular genetics of gametophytic self-incompatibility in Petunia hybrida

1994
The most famous, if not necessarily the first, description of gametophytic self-incompatibility in Petunia was given by Charles Darwin (1876), who noted: ... for protected flowers, with their own pollen placed on the stigma, never yielded nearly a full complement of seed; whilst those left uncovered produced fine capsules, showing that pollen from ...
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Dioecy Versus Gametophytic Self-Incompatibility: A Test

The American Naturalist, 1984
Gregory J. Anderson, G. Ledyard Stebbins
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[Progress in study on signal transduction of gametophytic self-incompatibility].

Yi chuan = Hereditas, 2008
In nature, most self-incompatible flowering plants (angiosperms) show gametophytic self-incompatibility. Although gametophytic self-incompatibility functions can ultimately prevent self-fertilization, flowering plants have adopted different signal transduction pathways to reject self pollen.
Xing-Guo, Lan, Xiao-Min, Yu, Yu-Hua, Li
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Gametophytic Self-Incompatability

2017
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SYMPOSIUM: Changing Concepts of Gametophytic Self‐Incompatibility

American Journal of Botany, 1984
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