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Anther Culture of the Gametophytic Self-Incompatible Species Physalis ixocarpa Brot
2021Here we present an optimized protocol for in vitro embryo formation and plant regeneration through anther culture of the Mexican husk tomato (Physalis ixocarpa Brot.). This protocol relies on the application of an anther thermal shock at a specific developmental stage prior to the in vitro culture, ensures embryo formation from anthers without callus ...
Rocío, Escobar-Guzmán +1 more
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Gametophytic self-incompatibility inhibits pollen tube growth using different mechanisms
Trends in Plant Science, 2003Self-incompatibility (SI) is one of the most important mechanisms used by plants to prevent self-pollination and consequently inbreeding. It is genetically controlled by the S-locus, which allows the recognition and rejection of 'self' (S-phenotypically identical) pollen. Gametophytically controlled SI (GSI) is the most widespread SI system.
Noni V E, Franklin-Tong +1 more
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Gametophytic Self-Incompatibility: Biochemical, Molecular Genetic, and Evolutionary Aspects
1992Publisher Summary This chapter focuses on the gametophytic self-incompatibility—a prezygotic barrier to self-fertilization in plants that otherwise produce fully functional gametes. Two types of reproductive barriers operate in plants: interspecific and intraspecific.
A, Singh, T H, Kao
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Population Genetic Aspects of Gametophytic Self incompatibility
Plant Species Biology, 1996Abstract In gametophytic self‐incompatibility, the S‐locus encodes an S‐protein whose expression results in successful pollination only when the pollen allele differs from both maternal alleles. Analysis of nucleotide and amino acid sequences of a number of S‐alleles has revealed extraordinary allelic sequence ...
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Molecular Mechanisms Underlying The Breakdown Of Gametophytic Self‐incompatibility
The Quarterly Review of Biology, 2002The breakdown of self-incompatibility has occurred repeatedly throughout the evolution of flowering plants and has profound impacts on the genetic structure of populations. Recent advances in understanding of the molecular basis of self-incompatibility have provided insights into the mechanisms of its loss in natural populations, especially in the ...
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Involvement of three ABRE-binding factors in the gametophytic self-incompatibility reaction in pear
Scientia Horticulturae, 2022Lei Wu +6 more
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S-RNase uptake by compatible pollen tubes in gametophytic self-incompatibility
Nature, 2000Many 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 +3 more
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Pollen transfer dynamics and the evolution of gametophytic self-incompatibility
Journal of Evolutionary Biology, 1999Abstract 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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