Milec, Z., Valárik, M., Bartoš, J., Šafář, J.
BIOTECHNOLOGY ADVANCES
32:
200-214,
2014
Klíčová slova:
Flowering, Photoperiod, Vernalization, Biotechnology, Genomics, Wheat, Rice, Arabidopsis
Abstrakt:
The transition from the vegetative to reproductive stage followed by inflorescence is a critical step in plant life;
therefore, studies of the genes that influence flowering time have always been of great interest to scientists.
Flowering is a process controlled by many genes interacting mutually in a genetic network, and several hypothesis
and models of flowering have been suggested so far. Plants in temperate climatic conditions must respond
mainly to changes in the day length (photoperiod) and unfavourable winter temperatures. To avoid flowering
before winter, some plants exploit a specific mechanism called vernalization. This review summarises current
achievements in the study of genes controlling flowering in the dicot model species thale cress (Arabidopsis
thaliana), aswell as in monocotmodel species rice (Oryza sativa) and temperate cereals such as barley (Hordeum
vulgare L.) and wheat (Triticum aestivum L.). The control of flowering in crops is an attractive target for modern
plant breeding efforts aiming to prepare locallywell-adapted cultivars. The recent progress in genomics revealed
the importance of minor-effect genes (QTLs) and natural allelic variation of genes for fine-tuning flowering and
better cultivar adaptation. We briefly describe the up-to-date technologies and approaches that scientists may
employ and we also indicate how thesemodern biotechnological tools and “-omics” can expand our knowledge
of flowering in agronomically important crops.
Fulltext: kontaktujte autory z ÚEB
Autoři z ÚEB: Jan Bartoš,
Zbyněk Milec,
Jan Šafář,
Miroslav Valárik
Čeština
English