Effects of Plant Stress on Facultative Apomixis in Boechera (Brassicaceae)
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چکیده
Effects of Plant Stress on Facultative Apomixis in Boechera (Brassicaceae)
منابع مشابه
1 Assembly of the Boechera retrofracta genome and 2 evolutionary analysis of apomixis - associated genes 3
Closely related to the model plant Arabidopsis thaliana, the genus Boechera is known to 30 contain both sexual and apomictic species or accessions. Boechera retrofracta is a diploid sexually 31 reproducing species and is thought to be an ancestral parent species of the apomictic species 32 Boechera divaricarpa. Here we report the de novo assembly of the B. retrofracta genome using short 33 Illu...
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Molecular dissection of apomixis - an asexual reproductive mode - is anticipated to solve the enigma of loss of meiotic sex, and to help fixing elite agronomic traits. The Brassicaceae genus Boechera comprises of both sexual and apomictic species, permitting comparative analyses of meiotic circumvention (apomeiosis) and parthenogenesis. Whereas previous studies reported local transcriptome chan...
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As sessile organisms, plants must be able to complete their life cycle in place and therefore tolerance to abiotic stress has had a major role in shaping biogeographical patterns. However, much of what we know about plant tolerance to abiotic stresses is based on studies of just a few plant species, most notably the model species Arabidopsis thaliana. In this study we examine natural variation ...
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Apomixis is associated with occurring in hybrid and polyploid plants. Here a model is tested wherein facultative apomixis might be achieved by impairing intracellular stress-signaling via a hybridization induced miss-regulation of ribosome biogenesis. The HDA6 gene knockout globally up-regulates ribosome biogenesis in Arabidopsis thaliana. Embryological analysis revealed reduced meiocyte initia...
متن کاملApomixis and gene expression in Boechera.
The ability to induce apomixis, the production of seeds from maternal tissues without fertilization or meiosis, in crop plants has been referred to as a holy grail of plant biology. Apomixis leads to genetically identical progeny, which would, for instance, allow crops to retain complex features such as hybrid vigor over many generations and thus drastically reduce costs associated with seed pr...
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تاریخ انتشار 2016