Pyramiding QTL for yield-related traits and grain shape in rice using single-segment substitution lines

Published on Jun 21, 2018 12:37 PM

In this study, six Secondary Single-segment substitution
lines (SSSLs) and five double-segment substitution lines
(DSSLS) that had higher yield were produced by selective
crossing of seven primary SSSLs. The DSSL-D3 had
significantly higher (by 9.44%) yield than Huajingxian74,
the recurrent parent. With pyramided QTL qGL3, qGWT3,
qPN and the Waxy locus, the DSSL D2 showed a higher
yield (by 8.70%) combined with long and high-quality grain.
These results indicated that pyramiding of favourable QTL
using SSSLs is feasible to improve rice yield and quality.
 

Keywords: Rice, single-segment substitution lines, yield, grain shape, pyramiding

Info

Year: 2014
Volume: 74
Issue: 4
Article DOI: 10.5958/0975-6906.2014.00875.X
Print ISSN: 0019-5200
Online ISSN: 0975-6906

Authors

Fang-Ming Zhao,Zheng-Lin Yang and Guang-Hua He info_circle
Gui-Quan Zhang info_circle

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