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Showing 1 to 10 of 10 for “"self-incompatibility (SI)"”.
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Investigations of self-incompatibility (SI) in perennial ryegrass (Lolium perenne L.)
… for the temperate zone. It maintains effective self-incompatibility (SI), which promotes outbreeding as well as limits the efficient production of inbred lines and hybrids. SI in L. perenne is controlled by the S and Z loci, mapping to linkage groups 1 and 2, respectively. None of the gene …
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Investigating the role of the cytoskeleton and signalling in the self-incompatibility response of Papaver rhoeas
… are hermaphrodite, which poses the problem of self-fertilisation and the subsequent loss of genetic fitness in the offspring. To prevent this, plants have developed a genetically controlled mechanism called self-incompatibility (SI) which allows self (incompatible) pollen to be recognised and …
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SELF-INCOMPATIBILITY IN CHEIRANTHUS ALLIONII
<p>The presence of a self-incompatibility (SI) system in the polyploid crucifer, Cheiranthus allionii = Siberian wallflower, was suggested by results of greenhouse screening and confirmed by results of controlled pollinations in the field. Sporophytic control of the system was indicated by a …
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Identification of a mitogen-activated protein kinase, p56, which mediates the self-incompatibility response in Papaver rhoeas L.
Self-incompatibility (SI) is the major mechanism used by flowering plants to prevent self-pollination and thus avoid inbreeding. It is a genetically controlled mechanism that encodes a highly specific recognition system that inhibits the growth of incompatible pollen, whereas compatible pollen from …
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Reproductive biology and ex situ conservation of the genus Restrepia (Orchidaeae)
The genus Restrepia is well known to orchid enthusiasts but its micromorphology has not been described, and its pollination and breeding systems have not been investigated. The aim of this investigation was, therefore, to add to existing knowledge so that the resultant data could be used to …
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Genetic analysis of reproductive and nut traits in almond [Prunus dulcis (Mill.) D.A. Webb]
… is a perennial tree crop with a gametophytic self-incompatibility (SI) system. The SI system of almond is controlled by a multi-allelic locus, S, which is about 70,000 bp long. A nearly complete sequence for the entire S locus sequence has been available only for the S₇ haplotype. In this …
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Identification of genes related to self-incompatibility in ryegrass (Lolium perenne L.)
Self-incompatibility (SI) is a mechanism that prevents self-pollination and inbreeding in many flowering plant species. SI in Lolium perenne is controlled by two multi-allelic loci, S and Z. The working of this SImechanism has important consequences for L. perenne breeding as it prevents the …
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Dissecting key biomass traits through traditional QTL mapping, exploring novel functional genomics approaches, and investigating self-incompatibility in Miscanthus
It has long been recognized that relience on fossil fuels for the world’s energy needs is unsustainable, yet few attractive alternatives have been developed. Establishing an alternative energy source for the transportation sector has been particularly challenging as the vast majority of the current …
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Studio molecolare dei meccanismi dell'autoincompatibilità gametofitica in pero europeo (Pyrus communis)
Self-incompatibility (SI) systems have evolved in many flowering plants to prevent self-fertilization and thus promote outbreeding. Pear and apple, as many of the species belonging to the Rosaceae, exhibit RNase-mediated gametophytic self-incompatibility, a widespread system carried also by the …
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Evolutionary dynamics of mating systems in populations of North American Arabidopsis lyrata
… from completely inbreeding to completely outcrossing, with intermediate forms referred to as mixed mating systems. Arabidopsis lyrata is a strongly outcrossing perennial due to a sporophytic self incompatibility (SI) system. The species occurs in temperate regions of the Northern hemisphere where …