Osservazioni sulla meiosi in cellule madri del polline di <i>Vitis vinifera</i> L. (cv. Barbera) diploide e tetraploide
DOI:
https://doi.org/10.5073/vitis.1984.23.195-201Abstract
Sono state osservate in Barbera diploide e mutato (tetraploide e chimera periclinale 2n-4n) le varie fasi della meiosi a partire dalle cellule madri del polline fino alla formazione del polline stesso.
E' stata evidenziata una certa incidenza di appaiamenti anomali in entrambi i mutanti e, al termine della meiosi, si sono potuti osservare tetradi con granuli soprannumerari.
Il polline delle piante mutate, presentante per lo più 4 pori, possiede una capacità germinativa ridotta rispetto al testimone.
Investigations on meiosis in pollen mother cells of diploid and tetraploid Vitis vinifera L. cv. Barbera
The different stages of meiosis have been investigated in diploid and mutated Vitis vinifera cv. Barbera (a tetraploid and a periclinal chimera 2n-4n) concerning the pollen mother cells.
Some incidence of anomalous coupling in both mutants has been pointed out, and tetrades with extra grains can be observed at the end of meiosis.
Pollen grains from mutated plants have generally 4 pores and show with respect to the control a reduced germinability.
Downloads
Published
Issue
Section
License
The content of VITIS is published under a Creative Commons Attribution 4.0 license. Any user is free to share and adapt (remix, transform, build upon) the content as long as the original publication is attributed (authors, title, year, journal, issue, pages) and any changes to the original are clearly labeled. We do not prohibit or charge a fee for reuse of published content. The use of general descriptive names, trade names, trademarks, and so forth in any publication herein, even if not specifically indicated, does not imply that these names are not protected by the relevant laws and regulations. The submitting author agrees to these terms on behalf of all co-authors when submitting a manuscript. Please be aware that this license cannot be revoked. All authors retain the copyright on their work and are able to enter into separate, additional contractual arrangements.