関: andromonoecious

English Journal

Andromonoecy and developmental plasticity in Chaerophyllum bulbosum (Apiaceae-Apioideae).

Reuther K, Claßen-Bockhoff R.Author information Institut für Spezielle Botanik und Botanischer Garten, Johannes Gutenberg-Universität, Bentzelweg 2, D-55099 Mainz, Germany.AbstractBACKGROUND AND AIMS: Andromonoecy, the presence of hermaphrodite and male flowers in the same individual, is genetically fixed or induced, e.g. by fruit set. Little is known about the forces triggering andromonoecy in the Apiaceae. In the present study, a natural population of the protandrous Chaerophyllum bulbosum was investigated to elucidate architectural constraints and effects of resource reallocation.
Annals of botany.Ann Bot.2013 Nov;112(8):1495-503. doi: 10.1093/aob/mct073. Epub 2013 Apr 12.
BACKGROUND AND AIMS: Andromonoecy, the presence of hermaphrodite and male flowers in the same individual, is genetically fixed or induced, e.g. by fruit set. Little is known about the forces triggering andromonoecy in the Apiaceae. In the present study, a natural population of the protandrous Chaero
PMID 23585495

Involvement of ethylene biosynthesis and signalling in fruit set and early fruit development in zucchini squash (Cucurbita pepo L.).

Martínez C, Manzano S, Megías Z, Garrido D, Picó B, Jamilena M.Author information Departamento de Biología y Geología, Agrifood Campus of International Excellence (ceiA3), Universidad de Almería, La Cañada de San Urbano s/n, 04120 Almería, Spain. mjamille@ual.es.AbstractBACKGROUND: We have identified a kind of parthenocarpy in zucchini squash which is associated with an incomplete andromonoecy, i.e. a partial conversion of female into bisexual flowers. Given that andromonoecy in this and other cucurbit species is caused by a reduction of ethylene production in the female flower, the associated parthenocarpic development of the fruit suggested the involvement of ethylene in fruit set and early fruit development.
BMC plant biology.BMC Plant Biol.2013 Sep 22;13:139. doi: 10.1186/1471-2229-13-139.
BACKGROUND: We have identified a kind of parthenocarpy in zucchini squash which is associated with an incomplete andromonoecy, i.e. a partial conversion of female into bisexual flowers. Given that andromonoecy in this and other cucurbit species is caused by a reduction of ethylene production in the
PMID 24053311

A multidimensional approach to understanding floral function and form.

Carr DE.Author information Blandy Experimental Farm, University of Virginia, 400 Blandy Farm Lane, Boyce, VA 22620, USA. dec5z@virginia.eduAbstract• Premise of the study: Variation in plant mating systems is a fundamental component of the diversity of floral form and function. Mating systems have a strong influence on the distribution and expression of genetic variation, which in turn can influence the course of mating system evolution. It has long been appreciated, however, that ecological interactions may provide much of the impetus behind these evolutionary changes. • Methods: This commentary reviews the Special Section in the American Journal of Botany (vol. 100, issue 6) that features novel research on the role of interactions between plants and their pollinators, seed dispersers, herbivores, and interspecific competitors in the evolution of selfing rates and gender. These studies vary in approach from empirical experiments, to phylogenetic comparisons, to theoretical models, to literature reviews as they each attempt to shed new light on longstanding questions about the selective forces and evolutionary pathways that have led to the diversified means by which plants promote or discourage self-fertilization. • Key results: Evidence is provided that indicates that ecological interactions (e.g., herbivory and heterospecific pollen deposition by pollinators) can strongly influence the relative advantages of selfing and outcrossing. Ecological interactions can also influence allocation to sexual functions, which will influence individual and population outcrossing rates and possibly the evolutionary path of gender expression. • Conclusions: Mating systems evolution is clearly a multidimensional problem. Research that places the study of mating and sexual systems within a more realistic ecological context will no doubt reveal more complexity as we move toward a better understanding of plant diversity.
American journal of botany.Am J Bot.2013 Jun;100(6):1102-4. doi: 10.3732/ajb.1300049. Epub 2013 May 29.
• Premise of the study: Variation in plant mating systems is a fundamental component of the diversity of floral form and function. Mating systems have a strong influence on the distribution and expression of genetic variation, which in turn can influence the course of mating system evolution. It h
PMID 23720428