Evaluation of genetic effect on quality and yield traits of Wxin in rice substitution lines of Y58S by marker-assisted backcross breeding

Published on Jun 06, 2018 03:43 AM

Y58S is an elite line with superior grain qualities except for
the low amylose content (AC). Basmati 370 was used as
donor of Wxin with intermediate AC into Y58S by marker
assisted backcross breeding. Through repeated
backcrossing, three Wxin substitution lines were obtained,
which were crossed with 93-11 to produce hybrids. The
improved Y58S lines and the hybrids derived from them
had significantly increased AC and chalkiness with
reduction on gel consistency and the head rice recovery,
while the agronomic performance remained same as the
parent lines. Changes in eating qualities indicated the Waxy
region might have pleiotropic effect on grain traits.

Keywords: Y58S, Wxin substitution lines, eating qualities, pleiotropic effect

Info

Year: 2015
Volume: 75
Issue: 1
Article DOI: 10.5958/0975-6906.2015.00016.4
Print ISSN: 0019-5200
Online ISSN: 0975-6906

Authors

Wentao Sheng, Lijie Zhou, Jun Wu, Bin Bai and Qiyu

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