Document type
ArticleVersion
Accepted versionPublication date
All rights reserved
Please use this identifier to cite or link to this item: https://hdl.handle.net/2445/52663
A mediterranean japonica rice (Oryza sativa) cultivar improvement through anther culture.
Journal Title
Director/Tutor
Additional contribution
Journal ISSN
Volume Title
Abstract
Certified seed producers systematically select and propagate registered varieties year after year in order to maintain their uniformity and the original registered cultivar traits. However, natural mutations, spontaneous breeding between varieties and alien grain contamination can introduce undesir- able variability. NRVC 980385 is a temperate japonica rice cultivar (Oryza sativa ssp. japonica) first regis- tered in Spain in 2002. In 2005 certification tests detected a plot differing from the original traits in terms of uniformity and height suggesting the pres- ence of a certain heterozygosis. This material was therefore seen as an opportunity to obtain newly stabilized doubled haploid (DH) lines which could compete in the Spanish short grain seed market. In this study, an in vitro anther culture protocol is defined which also covers the field tests selection to obtain four new, improved and stabilized DH derived lines ready to be registered for commercial proposes. This took just 4 years from the initial anther collection until new lines were grown in large scale field trials. Consequently, this protocol reduces the time for obtaining field assessed DH lines thereby having considerable advantages over other techniques by both maintaining the original registered cultivars and/or generating new derived varieties.
Related resource
Subject
Subject (English)
Citation
Citation
SERRAT GURRERA, Xavier, et al. A mediterranean japonica rice (Oryza sativa) cultivar improvement through anther culture. Euphytica. 2014. Vol. 195, num. 1, pags. 31-44. ISSN 0014-2336. [consulted: 16 of October of 2026]. Available at: https://hdl.handle.net/2445/52663