DEVELOPMENT OF JAPONICA TYPE CYTOPLASMIC MALE STERILE (CMS) RICE LINES FOR COMMERCIAL HYBRID RICE IN MEDITERRANEAN ECOLOGICAL CONDITION

Year 2021, , 111 - 116, 29.06.2021

Rasim Unan

https://doi.org/10.17557/tjfc.650908

Cited By: 2

Abstract

Hybrid rice has an average
15 % to 20 % yield advantage over inbred lines. The availability of stable cytoplasmic male sterility
system is vital for commercial hybrid rice. The experiment was conducted to
develop japonica type CMS lines of national rice varieties. National varieties
were tested to determine as maintainer, CMS or restorer features via test
cross. The test crosses were made by using 19 japonica type national rice varieties
and 21 CMS lines and 1 restorer line.  All national rice varieties which tested are
determined maintainer features. In addition to, 5 CMS introduction lines and 1
restorer lines adapted Mediterranean ecological condition for hybrid breeding
process. Two maintainer were backcrossed for 6 generations and it was developed
similar agronomic features and 100% spikelet sterile CMS lines. For production
of CMS lines Osmancik-97 and Kiziltan, it was employed wild abortive rice which
is CMS V20A. Successive backcrossing of varieties succeeded to produce
completely male sterile CMS lines. Wild abortive cytoplasm did not affect
agronomic characteristic. Since Osmancik-97 is one of the most popular
varieties and it was used as a donor gene for new varieties, the WA-CMS lines
of Osmancik-97 and Kiziltan will be useful for hybrid rice breeding. 

Keywords

Breeding, cytoplasmic male sterility (CMS), hybrid rice, Oryza sativa, Osmancik-97

Supporting Institution

Tarımsal Araştırmalar ve Politikalar Genel Müdürlüğü

Project Number

TAGEM/TBAD/16/A12/P04/001

Thanks

This research was supported by General Directorate of Agricultural Research and Policies, Turkey (Project No: TAGEM/TBAD/16/A12/P04/001 ).

DEVELOPMENT OF JAPONICA TYPE CYTOPLASMIC MALE STERILE (CMS) RICE LINES FOR COMMERCIAL HYBRID RICE IN MEDITERRANEAN ECOLOGICAL CONDITION

Abstract

Hybrid rice has an average 15 % to 20 % yield advantage over inbred lines. The availability of stable cytoplasmic male sterility system is vital for commercial hybrid rice. The experiment was conducted to develop japonica type CMS lines of national rice varieties. National varieties were tested to determine as maintainer, CMS or restorer features via test cross. The test crosses were made by using 19 japonica type national rice varieties and 21 CMS lines and 1 restorer line. All national rice varieties which tested are determined maintainer features. In addition to, 5 CMS introduction lines and 1 restorer lines adapted Mediterranean ecological condition for hybrid breeding process. Two maintainer were backcrossed for 6 generations and it was developed similar agronomic features and 100% spikelet sterile CMS lines. For production of CMS lines Osmancik-97 and Kiziltan, it was employed wild abortive rice which is CMS V20A. Successive backcrossing of varieties succeeded to produce completely male sterile CMS lines. Wild abortive cytoplasm did not affect agronomic characteristic. Since Osmancik-97 is one of the most popular varieties and it was used as a donor gene for new varieties, the WA-CMS lines of Osmancik-97 and Kiziltan will be useful for hybrid rice breeding. 

Keywords

Hibrit çeltik, ıslah, sitoplazmik erkek kısırlık (CMS), Oryza sativa, Osmancık-97

Project Number

TAGEM/TBAD/16/A12/P04/001

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