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Full-Text Articles in Life Sciences
Effects Of Plant Stress On Facultative Apomixis In Boechera (Brassicaceae), Mayelyn Mateo De Arias
Effects Of Plant Stress On Facultative Apomixis In Boechera (Brassicaceae), Mayelyn Mateo De Arias
All Graduate Theses and Dissertations, Spring 1920 to Summer 2023
In flowering plants, apomixis is asexual reproduction by seeds. Apomixis allows the production of offspring with the same genetic characteristics as the mother plant. Fertilization is not required. Apomixis could become a tool for naturally cloning high-yielding crop hybrids through their own seed. However, apomixis does not occur in major crop plants, except for citrus. In the present study, genes that might cause apomixis in naturally occurring apomictic plants were investigated. Sexual and apomictic species of the genus Boechera were exposed to stressed and non-stressed conditions. Effects of these treatments on the expression of apomixis was then measured. Stress triggered …
A New Species Of Sisymbrium (Brassicaceae) From Turkey: Morphological And Molecular Evidence, Bi̇rol Mutlu, Şükrü Karakuş
A New Species Of Sisymbrium (Brassicaceae) From Turkey: Morphological And Molecular Evidence, Bi̇rol Mutlu, Şükrü Karakuş
Turkish Journal of Botany
Sisymbrium malatyanum Mutlu & Karakuş is identified as a new species from Malatya Province, East Anatolia, Turkey. Morphological and molecular (entire ITS region) studies proved that this species especially resembles Sisymbrium brassiciforme, S. heteromallum, S. altissimum, S. damascenum, and S. austriacum subsp. contortum. New species and related taxa are discussed in terms of morphological and molecular differences. Epicuticular wax on the fruit surface of the new species was determined. SEM images (hairs on leaf, stem, fruit, stylus, and epicuticular wax crystalloids) and field photographs (habitat, flowering and fruiting shape of habitus, and fruit) are presented.