Apomeiotic pollen mother cell development in the apomictic Boechera species

K M Taskin, K Turgut, Roderick Scott

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Pollen mother cell (PMC) development in the apomictic Boechera species B. holboellii, B. gunnisoniana and B. divaricarpa were investigated by various cytological methods. In prophase I, in triploid species B. holboellii and B. gunnisoniana the individual chromosomes condensed into long strands within the nucleus. Then, in metaphase I, each PMC formed a restitutional nucleus thereby bypassing the rest of the first meiotic division. This is interpreted as representing apomeiosis. Subsequently, the restitution nuclei underwent a single cytokinesis as evidenced by the production of dyads. The cells within each dyad were separated by a callose wall. Most of the PMC in B. holboellii and B. gunnisoniana produced dyads, but a small proportion generated conspicuous tetrads. In contrast, diploid apomict B. divaricarpa produced only tetrads by simultaneous cytokinesis.
Original languageEnglish
Pages (from-to)468-474
Number of pages7
JournalBiologia Plantarum
Volume53
Issue number3
DOIs
Publication statusPublished - Sep 2009

Fingerprint Dive into the research topics of 'Apomeiotic pollen mother cell development in the apomictic Boechera species'. Together they form a unique fingerprint.

Cite this