Title:
POLYPLOID TWO-LINE HYBRID RICE PLANT AND SELECTIVE BREEDING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2018/059121
Kind Code:
A1
Abstract:
A method for selectively breeding a polyploid two-line hybrid rice plant, the selective breeding method comprising: determining a tetraploid rice plant photo-thermo-sensitive male sterile line having the genetic feature of PMeS (polyploid meiosis stability) and a tetraploid rice plant restored line having the genetic feature of PMeS; performing hybridization using an Indica/Japonica-restored or Japonica/Indica-restored hybrid combination; hybridizing and generating a tetraploid rice plant hybrid using the tetraploid rice plant photo-thermo-sensitive male sterile line and the tetraploid rice plant restored line; breeding a stable tetraploid rice plant hybrid combination and determining said combination to be a polyploid two-line hybrid rice plant combination. The breeding method utilizes the powerful heterosis of a polyploid rice plant to transform existing diploid heterosis into the heterosis of a polyploid "two-line" hybrid rice plant. Using the method may breed new varieties of polyploid two-line hybrid rice plants which have large rice ears, large rice grains and a high yield.
Inventors:
CAI DETIAN (CN)
SONG ZHAOJIAN (CN)
ZHANG XIANHUA (CN)
LIU YUHUA (CN)
HE YUCHI (CN)
SONG ZHAOJIAN (CN)
ZHANG XIANHUA (CN)
LIU YUHUA (CN)
HE YUCHI (CN)
Application Number:
PCT/CN2017/095934
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:
| CN106386465A | 2017-02-15 | |||
| CN1266615A | 2000-09-20 | |||
| CN104542258A | 2015-04-29 | |||
| CN104025999A | 2014-09-10 | |||
| CN1951172A | 2007-04-25 | |||
| CN1586134A | 2005-03-02 |
Other References:
ZHANG, YUANYUAN: "The Research on Several Male Sterile Lines and Restorer Lines of Polyploid Rice , China Master's Theses Full-Text Database", AGRICULTURE SCIENCE AND TECHNOLOGY, 15 June 2017 (2017-06-15), pages D047 - 59
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)
SONG, ZHAOJIAN ET AL.: "Studies on the Growth Habits and Characteristics of Two Polyploid Indica-Japonica Hybrids with Powerful Heterosis", SCIENTIA AGRICULTURA SINICA, 31 December 2006 (2006-12-31), pages 1 - 9
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)
SONG, ZHAOJIAN ET AL.: "Studies on the Growth Habits and Characteristics of Two Polyploid Indica-Japonica Hybrids with Powerful Heterosis", SCIENTIA AGRICULTURA SINICA, 31 December 2006 (2006-12-31), pages 1 - 9
Attorney, Agent or Firm:
HUBEI WUHAN YONGJIA PATENT AGENCY CO., LTD (CN)
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