Fine mapping of quantitative trait loci Hd-1, Hd-2 and Hd-3, controlling heading date of rice, as single Mendelian factors

Yamamoto, Tetsuro; Kuboki, Y; Lin, Shaoyang; Sasaki, Takuji; Yano, Masahiro

doi:10.1007/s001220050864

Cited by 219 publications

(135 citation statements)

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“…Among these QTLs, Hd1, Hd2, and Hd3 were analyzed by using advanced backcross progeny and mapped precisely as single Mendelian factors (Yamamoto et al 1998). In addition, these QTLs were found to be involved in photoperiod sensitivity .…”

Section: Discussionmentioning

confidence: 99%

“…In particular, 15 QTLs for heading date (Hd1-Hd3a, Hd3b-Hd14) have been identified by using several types of progeny derived from crosses between a japonica variety, Nipponbare, and an indica variety, Kasalath . Among these 15 QTLs, Hd1, Hd2, Hd3a, Hd3b, Hd6 and Hd9 have been mapped as single Mendelian factors (Yamamoto et al 1998. Additional characterization of these six QTLs has been performed by developing nearly isogenic lines of the QTLs [NIL(QTLs)] with regard to the photoperiodic response of heading .…”

Section: Introductionmentioning

confidence: 99%

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Fine Mapping and Characterization of Quantitative Trait Loci Hd4 and Hd5 Controlling Heading Date in Rice.

et al. 2003

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Fine mapping of Hd4 and Hd5, quantitative trait loci (QTLs) for heading date in rice, was performed by using advanced backcross progeny derived from a cross between a japonica rice variety, Nipponbare, and an indica variety, Kasalath. Hd4 was mapped between restriction fragment length polymorphism (RFLP) markers R46 and C39 in the proximal region of chromosome 7, and Hd5 was mapped between C166 and R902 on the short arm of chromosome 8; both QTLs mapped as single Mendelian factors. We used marker-assisted selection to develop two nearly isogenic lines (NIL), designated NIL(Hd4) and NIL(Hd5), in which small chromosomal segments of Kasalath including Hd4 and Hd5, respectively, each were substituted into the genetic background of Nipponbare. Compared with that of Nipponbare, daysto-heading of NIL(Hd4) and NIL(Hd5) increased under long-day and natural-field conditions, but no differences were observed between those of the two NILs and Nipponbare under short-day conditions. Epistatic interaction was detected between Hd5 and Hd1, a key photoperiod sensitivity QTL, on the basis of an analysis of the F 2 population derived from a cross between the NIL(Hd5) and NIL(Hd1). This result suggests that Hd5 is involved in photoperiod sensitivity and may act downstream or upstream of Hd1 in the same photoperiodic pathway. In comparison, the genetic effect of Hd5 was additive to that of Hd2, another key photoperiod-sensitivity QTL, indicating that Hd2 acts in a different photoperiodic pathway other than that of Hd1 and Hd5. The genetic effect of Hd4 was additive to those of Hd1 and Hd2; thus, epistatic interaction between these loci was not detected.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fine Mapping and Characterization of Quantitative Trait Loci Hd4 and Hd5 Controlling Heading Date in Rice.

et al. 2003

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“…Three loci involved in the photoperiodic flowering pathway in rice have been mapped and cloned. The Hd1 gene in rice maps to a major Quantitative Trait Locus (QTL) which controls photoperiodic response (Yamamoto et al ., 1998;Yano et al ., 1997Yano et al ., , 2000. Hd1 is a homologue of the Arabidopsis CO gene (Yano et al ., 2000).…”

Section: A Mads Box Gene Suppressor Of Overexpressionmentioning

confidence: 99%

Reciprocal control of flowering time by OsSOC1 in transgenic Arabidopsis and by FLC in transgenic rice

Tadege

Sheldon

Helliwell

et al. 2003

Plant Biotechnology Journal

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“…Mapping experiments in crosses between indica and japonica rice cultivars identified six QTLs for heading date (Yano et al 1997;Yamamoto et al 1998Yamamoto et al , 2000, the first five of which explained 84% of the phenotypic variation. A separate study involving different japonica and indica rice cultivars found four major heading date QTLs, but three of these QTLs are on different chromosomes than those identified in the preceding studies .…”

Section: Fig 1 Principles Of Qtl Mappingmentioning

confidence: 99%

Candidate Genes, Quantitative Trait Loci, and Functional Trait Evolution in Plants

Remington

Purugganan

2003

International Journal of Plant Sciences

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Two key characteristics of the neo-Darwinian synthesis in evolutionary biology have been its emphasis on the importance of mutations of small effect (micromutationism) and the view that studies of individual gene function shed relatively little light on evolutionary processes. Recent advances in molecular biology, however, have broken down many of the barriers between functional and evolutionary inquiry, opening the door to detailed studies of the genetic basis of functional trait evolution in plants. In this article, we review the insights into plant evolution that have been provided by molecular methods and address future research needs. Quantitative trait locus (QTL) mapping in crop and model plants has shown that individual loci often have large effects on trait variation, at variance with the micromutationist perspective. Evidence so far indicates that QTLs with large effects are also important in wild populations, underlying interspecific differences as well as intraspecific variation. Isolation of some of these QTLs, in particular for flowering time variation, has revealed a prominent role for regulatory genes known to function in regulation of flowering and exposed the complexity of regulatory processes. Preliminary evidence indicates that plant growth variation may be directly regulated rather than primarily the indirect result of selection on constituent processes. Future research should expand the number of traits that are intensively studied and make greater use of QTL mapping in wild plant taxa, especially those undergoing adaptive radiations, while continuing to draw on insights from model plants. Promising techniques include testing of candidate gene-trait associations in wild populations, genetic mapping in hybrid zones, and microarray analyses of gene expression.

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Fine mapping of quantitative trait loci Hd-1, Hd-2 and Hd-3, controlling heading date of rice, as single Mendelian factors

Cited by 219 publications

References 31 publications

Fine Mapping and Characterization of Quantitative Trait Loci Hd4 and Hd5 Controlling Heading Date in Rice.

Fine Mapping and Characterization of Quantitative Trait Loci Hd4 and Hd5 Controlling Heading Date in Rice.

Reciprocal control of flowering time by OsSOC1 in transgenic Arabidopsis and by FLC in transgenic rice

Candidate Genes, Quantitative Trait Loci, and Functional Trait Evolution in Plants

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