A microsporogenesis analysis performed in several Citrus populations revealed the presence of cytomixis (i.e., chromatin migration between meiocytes) in pollen mother cells of diploid and tetraploid genotypes. Single and double chromatin bridges between adjacent meiocytes were mainly observed at prophase I, but also in the subsequent phases of first division and in the second meiotic division. ...

Cytomixis is a poorly studied process of nuclear migration between plant cells. It is so far unknown what drives cytomixis and what is the functional state of the chromatin migrating between cells. Using immunostaining, we have analyzed the distribution of posttranslational histone modifications (methylation, acetylation, and phosphorylation) that reflect the functional state of chromatin in th...

Intercellular movement of chromatin termed cytomixis is a conspicuous phenomenon reported in both vegetative and reproductive tissues in many plant species, but has not widely been accepted as a normal cellular process. To further address this problem, morphologically normal and fertile transgenic tobacco plants expressing fusion protein of Arabidopsis histone 2B-cyan fluorescent protein (AtH2B...

The present study reports the chromosome number and meiotic behavior including microsporogenesis of Actaea kashmiriana J. Compton its relation with pollen fertility seed set. species showed a count 2n=4x=32 chromosomal irregularities such as chromatin stickiness, cytomixis, laggard formation, bridges, micronuclei polysporads. B-chromosomes were also observed in this species. Due to these irregu...