Example varieties for DUS testing in rice (Oryza sativa)
Abstract views: 549 / PDF downloads: 156
https://doi.org/10.56093/ijas.v82i12.26180
Keywords:
DUS test, Example variety, Plant variety protection, RiceAbstract
Genetic diversity and mating-type distribution were studied within five populations of Ascochyta rabiei in Turkey. Of 122 isolates tested for mating type, 52.5% were identified as MAT 1-2 and 47.5% as MAT 1-1. Both mating types were observed in all populations, supporting the hypothesis of a randomly mating population. RAPD analysis was performed on 81 isolates of A. rabiei representing different pathotypes and geographic origins with 54 primers. Results of RAPD analysis clustered all isolates into nine groups an arbitrary level of 73% similarity. Total gene diversity (HT=0.221) was mostly attributable to diversity within populations (HS=0.213). Only 4% of the total variability were attributable to variation among populations. The results revealed low genetic differentiation and high gene flow among populations of A. rabiei in Turkey.
Downloads
References
Anonymous. 2007. Specific DUS test guidelines for twelve notified crops-Rice (Oryza sativa L.). Plant Variety Journal of India 1: 151–69.
Joshi M A, Sarao N K, Sharma R C, Singh P and Bharaj T S. 2007. Varietal characterization of rice (Oryza sativa L.) based on Morphological Descriptors. Seed Research 35: 188–93.
Downloads
Submitted
Published
Issue
Section
License
Copyright (c) 2014 The Indian Journal of Agricultural Sciences
This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.
The copyright of the articles published in The Indian Journal of Agricultural Sciences is vested with the Indian Council of Agricultural Research, which reserves the right to enter into any agreement with any organization in India or abroad, for reprography, photocopying, storage and dissemination of information. The Council has no objection to using the material, provided the information is not being utilized for commercial purposes and wherever the information is being used, proper credit is given to ICAR.