Title:
TWO-LINE RESTORER LINE FOR POLYPLOID RICE AND BREEDING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/059120
Kind Code:
A1
Abstract:
A two-line restorer line for polyploid rice and breeding method therefor. The method comprises: a. determining a hybrid parent of a breeding restorer line; b. breeding a restorer line of indica-japonica type, or breeding a restorer line of japonica-indica type, and performing backcrossing or composite crossing after parental hybridization; c. selecting a single strain that meets a breeding objective, performing composite crossing again, and performing a first molecular marker test; d. comparing and selecting a single strain having good traits, and performing continuous self-crossing until the strain is basically stable; e. selecting a stable strain having good traits and having a tested molecular marker; f. performing test crossing with different types of polyploid sterile lines using a preferred strain as the male parent; and g. choosing a good hybrid combination and a restorer line thereof. Good strains of restorer lines for polyploid rice are bred using a combination of a restoring ability of a photo-thermo-sensitive male sterile gene and a high fecundity of a polyploid rice of a PMeS genic strain.
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Inventors:
CAI DETIAN (CN)
SONG ZHAOJIAN (CN)
ZHANG XIANHUA (CN)
LIU YUHUA (CN)
WANG WEI (CN)
HE YUCHI (CN)
SONG ZHAOJIAN (CN)
ZHANG XIANHUA (CN)
LIU YUHUA (CN)
WANG WEI (CN)
HE YUCHI (CN)
Application Number:
PCT/CN2017/095933
Publication Date:
April 05, 2018
Filing Date:
August 04, 2017
Export Citation:
Assignee:
WUHAN POLYPLOID BIOTECHNOLOGY CO LTD (CN)
UNIV HUBEI (CN)
UNIV HUBEI (CN)
International Classes:
A01H1/02; A01H1/04; A01H1/08; A01H4/00; A01H5/10
Domestic Patent References:
| WO2013124844A1 | 2013-08-29 |
Foreign References:
| CN106561443A | 2017-04-19 | |||
| CN104026006A | 2014-09-10 | |||
| CN103444511A | 2013-12-18 | |||
| CN1058129A | 1992-01-29 | |||
| CN1266615A | 2000-09-20 | |||
| CN101326895A | 2008-12-24 |
Other References:
ZUO, BO: "Studies on the Fertility and Combination of CMS Lines and Recovery Lines of Polyploid Rice", CHINA MASTER'S THESES FULL-TEXT DATABASE, AGRICULTURE SCIENCE AND TECHNOLOGY, 15 July 2013 (2013-07-15)
CAI, DETIAN ET AL.: "The Breeding of Two Polyploid Rice Lines with the Characteristic of Polyploid Meiosis Stability", SCIENCE IN CHINA SERIES C: LIFE SCIENCES, vol. 50, no. 3, 30 June 2007 (2007-06-30), pages 356 - 366
CAI, DETIAN ET AL.: "The Breeding of Two Polyploid Rice Lines with the Characteristic of Polyploid Meiosis Stability", SCIENCE IN CHINA SERIES C: LIFE SCIENCES, vol. 50, no. 3, 30 June 2007 (2007-06-30), pages 356 - 366
Attorney, Agent or Firm:
HUBEI WUHAN YONGJIA PATENT AGENCY CO., LTD (CN)
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