QTL analysis for flowering time using backcross population between Oryza sativa Nipponbare and O. rufipogon
スポンサーリンク
概要
- 論文の詳細を見る
In the near future, global average temperature is expected to increase due to the accumulation of greenhouse gases, and increased temperatures will cause severe sterility in many crop species. In rice, since wild species show high genetic variation, they may have the potential to improve the flowering characters of cultivars. In this study, we investigated flowering characters under natural conditions by comparing an Asian wild rice accession of Oryza rufipogon W630 (originated from Myanmar) with a Japanese rice cultivar, O. sativa Japonica cv. Nipponbare. Further, QTL analysis for days to heading (DH) and spikelet opening time (SOT: the time of day when the spikelet opens) was carried out using BC2F8 backcross population derived from the cross between them. Regarding DH, four QTLs were detected, and two of them were found to have wild alleles with strong effects leading to longer days to heading during the Japanese summer. These wild alleles may be used to produce late-heading cultivars that do not flower during the high summer temperatures anticipated in the future. As for SOT, two parameters of SOTb (beginning time when the first spikelet opens) and SOTm (median time when 50% of the spikelets open) were recorded and the time differences from Nipponbare were investigated. Two QTLs on chromosomes 5 and 10 and two QTLs on chromosomes 4 and 5 were detected for SOTb and SOTm, respectively. The wild alleles were responsible for early spikelet opening time at all loci. If the wild alleles detected in this study have the same effects in the genetic background of other cultivars, they will be very useful in producing early-flowering rice cultivars that complete fertilization in the morning before the temperature rises.
- 日本遺伝学会の論文
著者
-
ISHII Takashige
Laboratory of Plant Genetics, Graduate School of Agricultural Science, Kobe University
-
ISHIKAWA Ryo
Laboratory of Plant Molecular Genetics, Nara Institute of Science and Technology
-
Ishikawa Ryo
Graduate School Of Agricultural Science Kobe University
-
Thanh Pham
Laboratory of Plant Breeding, Graduate School of Agricultural Science, Kobe University
-
Phan Phuong
Laboratory of Plant Breeding, Graduate School of Agricultural Science, Kobe University
-
Ishikawa Ryo
Laboratory Of Plant Molecular Genetics Nara Institute Of Science And Technology
-
Ishii Takashige
Laboratory Of Plant Breeding Faculty Of Agriculture Kobe University
関連論文
- イネ属Aゲノム2倍種における葉緑体DNAの制限酵素分析〔英文〕
- 栽培イネOryza sativaとO.glaberrimaの葉緑体DNAの制限酵素分析〔英文〕
- Genetic diversity and origin of timopheevi wheat inferred by chloroplast DNA fingerprinting
- Chloroplast and nuclear DNA variation in common wheat : insight into the origin and evolution of common wheat
- Assignment of a Brown Planthopper(Nilaparvata lugens Stal)Resistance Gene bph4 to the Rice Chromosome 6
- Major QTLs for eating quality of an elite Japanese rice cultivar, Koshihikari, on the short arm of chromosome 3
- Phytochrome dependent quantitative control of Hd3a transcription is the basis of the night break effect in rice flowering
- Mitochondrial microsatellite variability in common wheat and its ancestral species
- Allelic interaction at seed-shattering loci in the genetic backgrounds of wild and cultivated rice species
- Phylogenetic relationships in A-genome species of rice as revealed by RAPD analysis
- DNA variation in the metallothionein genes in wild rice Oryza rufipogon: Relationship between DNA sequence polymorphism, codon bias and gene expression
- A New Rice Variety with Giant Embryos, "Haiminori"
- QTL Analysis for Plant and Grain Characters of Sake-brewing Rice Using a Doubled Haploid Population
- Development of backcross recombinant inbred lines between Oryza sativa Nipponbare and O. rufipogon and QTL detection on drought tolerance
- QTL analysis for flowering time using backcross population between Oryza sativa Nipponbare and O. rufipogon
- RAPD, RFLP and SSLP analyses of phylogenetic relationships between cultivated and wild species of rice
- Allelic interaction at seed-shattering loci in the genetic backgrounds of wild and cultivated rice species
- QTL analysis for flowering time using backcross population between Oryza sativa Nipponbare and O. rufipogon
- Electrospray Deposition of Poly(3-hexylthiophene) Films for Crystalline Silicon/Organic Hybrid Junction Solar Cells
- Efficient Crystalline Si/Poly(ethylene dioxythiophene) : Poly(styrene sulfonate) : Graphene Oxide Composite Heterojunction Solar Cells
- Crystalline Silicon/Graphene Oxide Hybrid Junction Solar Cells
- Electrospray-Deposited Poly(3,4-ethylenedioxythiophene):Poly(styrene sulfonate) for Poly(3-hexylthiophene):Phenyl-C61-Butyric Acid Methyl Ester Photovoltaic Cells
- Estimation of the outcrossing rate for annual Asian wild rice under field conditions