American beautyberry (Callicarpa americana) is a deciduous shrub native to the southeast United States and is grown primarily for its metallic-purple fruit that develop in the fall. There are also pinkand white-fruiting and variegated forms but these traits are rare in nature and there is no information available regarding their inheritance. Also, there is confusion regarding self-compatibility...

BACKGROUND AND AIMS Trithuria, the sole genus in the family Hydatellaceae, is an important group for understanding early angiosperm evolution because of its sister relationship to the ancient lineage, Nymphaeales (water lilies). Although also aquatic, Trithuria differs from water lilies in that all species are extremely small, and most have an annual life form and grow in seasonal wetlands. Ver...

Cytoplasmic male sterility (CMS) has been exclusively used as an emasculation tool in seed production of hybrids onion (Allium cepa L.).Three types CMS (CMS-S, CMS-R, and CMS-T) have hybrid breeding. Male conferred by both CMS-S CMS-R is likely induced open reading frame (orf) 725, a chimeric gene. However, this gene was not detected accessions containing CMS-T cytoplasm. Instead, region showin...

in order to identify the best maturity time for excision of fertilized ovules in interspecific hybridization, intercrosses were made between two diploid (gossypium herbaceum and g. arboreum, 2n=26) and two tetraploid species (g. barbadense and g. hirsutum, 2n=52). flower morphology, growth rate of ovules and ovaries, as well as fiber growth pattern in various time scales post anthesis were reco...

Under natural photoperiodic conditions protandry in hermaphrodite disc flowers of sunflower (Helianthus annuus L.) is determined by the different elongation rates of the style and filaments. The elongation of the filament and style starts simultaneously after the daily dark period, but the style growth rate is slower. When plants close to anthesis are exposed to continuous white light (WL) a lo...

Fruit initiation in Arabidopsis (Arabidopsis thaliana) is generally repressed until fertilization occurs. However, mutations in AUXIN RESPONSE FACTOR8 (ARF8) uncouple fruit initiation from fertilization, resulting in the formation of seedless, parthenocarpic fruit. Here we induced parthenocarpy in wild-type Arabidopsis by introducing either the mutant genomic (g) Atarf8-4 sequence or gAtARF8:be...

The concept of reification is used by Marx to describe a form of social consciousness in which human relations come to be identified with the physical properties of things, thereby acquiring an appearance of naturalness and inevitability. This essay presents a systematic reconstruction of Marx's theory of reification, with an emphasis on the social-structural dimensions of the concept. This rec...