Variations of Floral Traits in Asian Cultivated Rice (Oryza sativa L.) and its Wild Relatives (O. rufipogon Griff.)
スポンサーリンク
概要
- 論文の詳細を見る
To clarify the inter- and intraspecific variations of floral traits in rice, we investigated eleven traits related to pistil, stamen and glume using 128 Asian cultivated rice (Oryza sativa L.) accessions including 72 Indica and 56 Japonica type accessions, and 53 wild rice (O. rufipogon Griff.) accessions including 32 perennial and 21 annual ecotype accessions. We examined the results from three specific levels: intraspecific variation between perennial and annual ecotypes of wild rice, interspecific variation between cultivated rice and wild rice, and intraspecific variation between Indica and Japonica type cultivars. The annual wild rice accessions exhibited a shorter stigma and anther than the perennial wild rice ones. The cultivated rice accessions showed a lower stigma exsertion, shorter stigma, shorter anther, and thicker and wider lemma and palea than the wild rice accessions. These floral traits of cultivated rice are considered to play an important role in selfing and high seed production. None of the floral traits showed distinct differences between the Indica and Japonica type accessions in cultivated rice, although the Indica type accessions tended to display a slenderer stigma and glume than the Japonica type accessions. It is suggested that the varietal differentiation into the Indica and Japonica types is not likely to be related to genetic variations of floral traits. We clarified the differences in floral traits between annual and perennial ecotypes of wild rice, between cultivated rice and wild rice, and between the Indica and Japonica type cultivars, and discussed the relationship between genetic variations of floral traits and domestication and varietal differentiation in rice.
- 日本育種学会の論文
著者
-
FUJIMURA Tatsuhito
Institute of Agricultural and Forest Engineering, University of Tsukuba
-
Fukuta Yoshimichi
Plant Breeding, Genetics and Biochemistry, International Rice Research Institute
-
Fukuta Yoshimichi
Plant Breeding Genetics And Biochemistry Division International Rice Research Institute
-
Uga Yusaku
Institute Of Agricultural And Forest Engineering University Of Tsukuba:plant Breeding Genetics And B
-
Ohsawa R
Institute Of Agriculture And Forestry University Of Tsukuba
-
Ohsawa Ryo
Institute Of Agriculture And Forestry University Of Tsukuba
-
Fujimura Tatsuhito
Institute Of Agricultural And Forest Engineering University Of Tsukuba
関連論文
- Inverse correlation between mRNA levels in GFP-silenced transgenic Nicotiana benthamiana and resistance to Potato virus X engineered to contain GFP sequence
- Identification and characterization of genomic regions associated with nitrogen dynamics in rice plants (Oryza sativa L.)
- Characterization of an Isoform of Rice Starch Branching Enzyme, RBE4, in Developing Seeds
- Cloning, Expression, and Characterization of an Antifungal Chitinase from Leucaena leucocephala de Wit(Biochemistry & Molecular Biology)
- Enhanced Induction of Proline and Moracins in UV Stressed Mulberry Plants
- Mulberry Moracins : Scavengers of UV Stress-generated Free Radicals
- A New 9-Lipoxygenase cDNA from Developing Rice Seeds
- Cost Efficiency of Spatial Error Control in Single Plant Selection
- Variations of Floral Traits in Asian Cultivated Rice (Oryza sativa L.) and its Wild Relatives (O. rufipogon Griff.)
- Isolation of MADS-box Genes from Sweet Potato (Ipomoea batatas (L.) Lam.) Expressed Specifically in Vegetative Tissues
- Construction of a High-density AFLP and SSR Map Using Recombinant Inbred Lines of Cultivated×Weedy Soybean
- Mapping of QTLs Controlling Carbon Isotope Discrimination in the Photosynthetic System using Recombinant Inbred Lines Derived from a Cross between Two Different Rice (Oryza sativa L.) Cultivars(Genetic Resources Evaluation)
- Abundant Polymorphism in the Flanking Regions of Two Loci for Basic PR-1 Proteins as Markers for indica-japonica Differentiation in Rice : Oryza sativa L.
- Development and Characterization of Microsatellite Markers in Sweetpotato
- Evaluation of a Sequential Extraction Procedure for the Fractionation of Thallium in Soils and Determination of the Content by Flame Atomic Absorption Spectrometry(Environment)
- Genetic Analysis of Sweetpotato and Wild Relatives using Inter-simple Sequence Repeats (ISSRs)
- Variation in floral scent compounds recognized by honeybees in Brassicaceae crop species