Anther Development Dissected

Unresolved issues in pre-meiotic anther development

Compared to the diversity of other floral organs, the steps in anther ontogeny, final cell types, and overall organ shape are remarkably conserved among Angiosperms. Defects in pre-meiotic anthers that alter cellular composition or function typically result in male-sterility. Given the ease of identifying male-sterile mutants, dozens of genes with key roles in early anther development have been...

Anther development: basic principles and practical applications.

Male reproductive processes in flowering plants take place in the stamen (Esau, 1977). This sporophytic organ system contains diploid cells that undergo meiosis and produce haploid male spores, or microspores. Microspores divide mitotically and differentiate into multicellular male gametophytes, or pollen grains, that contain the sperm cells. Figures 1 and 2 show that the stamen consists of two...

01-P015 Dissected leaf development in Cardamine hirsuta

miRNA 5 end being fully complementary to the target mRNA, with binding of the 3 miRNA end varying. Many predictive algorithms have been produced to identify potential miRNA-target pairs. However many ignore full and near-full complementarity miRNA-mRNA pairs as they are considered unusual or potential false positives. However miRNA-mRNA pairs of this nature have been previously verified as func...

Anther and pollen development: A conserved developmental pathway

Pollen development is a critical step in plant development that is needed for successful breeding and seed formation. Manipulation of male fertility has proved a useful trait for hybrid breeding and increased crop yield. However, although there is a good understanding developing of the molecular mechanisms of anther and pollen anther development in model species, such as Arabidopsis and rice, l...

Running head: High temperature affects cotton anther development