Title
Microsatellite-Aided Screening for Fertility Restoration Genes (Rf) Facilitates Hybrid Improvement
Date Issued
01 May 2016
Access level
open access
Resource Type
journal article
Author(s)
Swedish University of Agricultural Sciences
Publisher(s)
Elsevier B.V.
Abstract
DNA markers enabled to determine the chromosomal locations of the two Rf genes (Rf3 and Rf4) in the wild-abortive cytoplasmic male sterility (WA-CMS) system. Four simple sequence repeats (SSRs) RM171, RM258, RM315 and RM443 were used to detect the allelic status with respect to the fertility restoration genes (Rf3 and Rf4) in 300 rice cultivars or breeding lines. The results revealed that out of 300 lines, 90 lines screened had Rf3, 65 lines had Rf4, and 45 lines had Rf3 and Rf4 alleles. Furthermore, 45 lines selected using SSR markers were mated with a CMS line (IR58025A) to analyze their restoring ability. Offspring of all the test lines except HHZ8-SAL9DT1-Y1, HHZ5-SAL9-Y3-1 and IDSA77 exhibited higher pollen and spikelet fertility (> 80%), thus confirming they bear the Rf alleles. The hybrid offspring of ARH12-6-1-1-B-3-1, IR32307-10-3-2-1 and Sahel 329 had the highest pollen fertility (97.39%, 98.30% and 97.10%, respectively) and spikelet fertility (95.10%, 97.07% and 96.10%, respectively).
Start page
160
End page
164
Volume
23
Issue
3
Language
English
OCDE Knowledge area
Genética, Herencia
Biología reproductiva
Subjects
Scopus EID
2-s2.0-84964226736
Source
Rice Science
ISSN of the container
16726308
Sources of information:
Directorio de Producción Científica
Scopus