| RRC ID |
6971
|
| 著者 |
Nagano H, Onishi K, Ogasawara M, Horiuchi Y, Sano Y.
|
| タイトル |
Genealogy of the "Green Revolution" gene in rice.
|
| ジャーナル |
Genes Genet Syst
|
| Abstract |
During the "Green Revolution" of rice, high-yielding varieties (HYVs) were developed using a semi-dwarf gene (sd1 or OsGA20ox2). The presence or absence of the two mutant alleles (DGWG type in Dee-geo-woo-gen and JKK type in Jikkoku) were surveyed by PCR using 256 accessions of eight wild and two cultivate rice species. The DGWG allele was detected in a landrace (Oryza sativa) and two accessions of wild rice (O. rufipogon), all of which are from China, showing their limited distribution. Genealogical studies of the OsGA20ox2 gene showed that the 62 sequences of O. sativa and O. rufipogon included 20 distinct haplotypes, indicating that the species complex contained OsGA20ox2 genes from two different lineages. The silent site nucleotide diversities (pi and theta(w)) were extremely low in Japonica rice, suggesting a genetic bottleneck. The haplotype network showed that the DGWG and JKK alleles were derived in different lineages. The DGWG carrier (W1944) had unique polymorphisms in the surrounding region of the locus, suggesting that the DGWG allele has been preserved in the wild progenitor, rather than that the DGWG allele has been introgressed from HYVs to W1944. Although a semi-dwarfing plant is a weak competitor under saturated fields, the crossing experiment revealed that the DGWG variant might have been preserved as a hidden variation in the genetic background of wild rice, without expressing a short-stature.
|
| 巻・号 |
80(5)
|
| ページ |
351-6
|
| 公開日 |
2005-10-1
|
| DOI |
10.1266/ggs.80.351
|
| PII |
JST.JSTAGE/ggs/80.351
|
| PMID |
16394586
|
| MeSH |
Alleles*
Genetic Variation*
Genome, Plant / genetics*
Oryza / genetics*
Phylogeny*
Quantitative Trait Loci / genetics*
|
| IF |
0.917
|
| 引用数 |
30
|
|
WOS 分野
|
GENETICS & HEREDITY
BIOCHEMISTRY & MOLECULAR BIOLOGY
|
| リソース情報 |
| イネ |
C9071
W0025(=>C0025)
W1952
W1944
W1718
W0120
W0106
W0107
W1551
W1681
W1714
W1865
W0630
W2107
W2108
W1970
W1943
W1945
W0149
W2005
W0172
W1294
W1807
W2014
W0593
W1990
W1187
W1239
W2080
T0708
T0544
T0446
T0536
T0325
T0627
T0221
T0160
T1075
T0868
T414
T0108
T0435
T0145
T0717
T0706
T0147
T0133
T0132 |
