Título del libro: Desert Plants: Biology And Biotechnology
Título del capítulo: Reproductive biology of Cactaceae
MARIA DEL CARMEN MANDUJANO SANCHEZ; ISRAEL GUSTAVO CARRILLO ANGELES; CONCEPCION MARTINEZ PERALTA;
Autores externos:
Idioma:
Inglés
Año de publicación:
2010
Resumen:
Floral biology in the Cactaceae represents a new field of research, with only 2% of approximately 2,000 species having been studied. Studies on breeding systems cover functional and morphological floral traits of sexual expression, while research on mating (hybridization) systems includes experiments on pollination, morphological and functional floral traits vis-à-vis estimation of out-crossing rates, and inbreeding depression. Most cacti are hermaphroditic with some exceptions of dioecy. Herkogamy and dichogamy seem to be common, and are coupled with self-incompatibility and inbreeding depression as mechanisms to avoid selfing; these traits are important in guiding the evolution of mating (fertilization) systems from mixed to mainly either out-crossing or selfing in all three subfamilies. We found no clear pattern between mating systems and genetic diversity. The impressive variety of fertilization and breeding systems, as well as the genetic diversity within Cactaceae highlights the complex evolution of this family and the plasticity of their reproductive response to the spatially and temporally unpredictable habitats in which they occur. This chapter reviews information on the floral biology, pollinators and genetics of Cactaceae, covering about 70 references: 36% on genetics, 43% on different aspects of pollination ecology, and 21% on diverse subjects with limited descriptions. © Springer-Verlag Berlin Heidelberg 2010. All rights reserved.
Entidades citadas de la UNAM:
ISBN:
9783642025501
Editorial:
Springer-Verlag Berlin Heidelberg Nombre de la publicación:
Reproductive biology of Cactaceae
Página inicial:
197
Página final:
230
