Method for improving low-generation breeding efficiency of high-resistant starch rice

The invention relates to a method for improving the low-generation breeding efficiency of high-resistance starch rice, which comprises the following steps: by using sbe3-rs gene-containing high-resistance starch rice as a donor parent, mixing and harvesting filial generations F1 to obtain F2 seeds;...

Full description

Saved in:
Bibliographic Details
Main Authors WAN CHANGZHAO, BAI JIANJIANG, PARK JONG-TAEK, TANG JIANHAO, YANG RUIFANG, ZHANG SHUNJUN
Format Patent
LanguageChinese
English
Published 30.08.2022
Subjects
AGRICULTURE
ANIMAL HUSBANDRY
FISHING
FORESTRY
HUMAN NECESSITIES
HUNTING
NEW PLANTS OR PROCESSES FOR OBTAINING THEM
PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES
TRAPPING
Online AccessGet full text

Cover

More Information
Summary:The invention relates to a method for improving the low-generation breeding efficiency of high-resistance starch rice, which comprises the following steps: by using sbe3-rs gene-containing high-resistance starch rice as a donor parent, mixing and harvesting filial generations F1 to obtain F2 seeds; performing water separation by utilizing the characteristic of high chalkiness of high-resistant starch rice grains, and separating suspended grains to obtain F2 seeds; genetic typing detection is carried out on selected seeds after water selection, the ratio of obtained high-resistance starch homozygous single plants is averagely increased by 4-8 times compared with that of seeds which are not subjected to water selection, and the ratio of the obtained high-resistance starch homozygous single plants is increased by 4-8 times compared with that of manually selected seeds with high chalkiness (gt; and compared with 30.6%, the breeding efficiency of the seeds is improved by nearly two times. According to the method,
Bibliography:Application Number: CN202210658083