Genetic and Environmental Variations and Associations of the Characters Related to the Grain-Filling Process in Rice Cultivars

Kato, Tsuneo

doi:10.1626/pps.2.32

Cited by 9 publications

(6 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This apparently showed a clear contrast with the results of previous experiments using cultivars with a wide variation in FGW, in which a high positive correlation was observed between these two traits (Kato, 1989;Kato, 1999). This high positive correlation between RGF and FGW was explained as the variation in the number of endosperm cells, each of which showed similar growth activity (Kato, 1995).…”

Section: Discussioncontrasting

confidence: 91%

“…In this study, wide variation among rice cultivars including extra-heavy panicle types and also among growing environments was demonstrated for the traits related to grain fi lling, which confi rms the previous results (Yamamoto et al, 1991;Tsukaguchi et al, 1996;Kato, 1999;Kato and Tamaki, 1999;Peng et al, 1999;Shiotsu, et al, 2006;Kato et al, 2007). In addition, signifi cant cultivarby-environment interactions were obtained in most of the traits; the most typical interaction in HG% at both PBs and SBs (Fig.…”

Section: Discussionsupporting

confidence: 89%

“…Kato (1999) examined the rate and duration of grain fi lling and fi nal grain weight using ten rice cultivars with various fi nal grain weights under three environments of different years and locations. The results showed highly significant variations among cultivars and environments for the rate and duration of grain filling and final grain weight.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Variation and Association of the Traits Related to Grain Filling in Several Extra-Heavy Panicle Type Rice under Different Environments

Kato

2010

Plant Production Science

Self Cite

View full text Add to dashboard Cite

Section: Discussioncontrasting

confidence: 91%

Section: Discussionsupporting

confidence: 89%

See 1 more Smart Citation

Variation and Association of the Traits Related to Grain Filling in Several Extra-Heavy Panicle Type Rice under Different Environments

Kato

2010

Plant Production Science

Self Cite

View full text Add to dashboard Cite

“…In crops, grain yield can be defined as the product of the average rate of grain production (dry weight increment per unit ground area per unit time) and the duration of grain formation (units of time; Daynard et al 1971). Both the plant genotype and environment influence the rate and duration of grain filling, which have been reported for certain grain crops, such as maize (Poneleit and Egli 1979), wheat (Talbert et al 2001), and rice (Jones et al 1979;Kato 1999). The possibility for increasing yield through selection for filling duration or filling rate has also been extensively investigated, particularly in cereals (Gebeyehou et al 1982;Talbert et al 2001;Yang et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Identification of QTL underlying the filling rate of protein at different developmental stages of soybean seed

et al. 2010

View full text Add to dashboard Cite

Seed protein content at the harvest stage is the sum of protein accumulation during seed filling. The aim of our investigation was to identify loci underlying the filling rate of seed protein at different developmental stages. To this end, we used 143 recombinant inbred lines (RILs) derived from the cross of soybean cultivars 'Charleston' and 'Dongnong 594' and composite interval mapping with a mixed genetic model. The genotype 9 environment interactions of the quantitative trait loci (QTL) were also evaluated. Thirty-nine unconditional QTL underlying the filling rate of seed protein at five developmental stages were mapped onto 14 linkage groups. The proportion of phenotypic variation explained by these QTL ranged from 4.88 to 26.05%. Thirty-eight conditional QTL underlying the filling rate of seed protein were mapped onto 16 linkage groups. The proportion of phenotypic variation explained by these QTL ranged from 1.87 to 31.34%. The numbers and types of QTL and their genetic effects on the filling rate of seed protein were different at each developmental stage. A G 9 E interaction effect was observed for some QTL.

show abstract

“…The rate and duration of seed filling was influenced by the plant genotype, the environment and their interactions (Ray and Choudhuri 1981;Poneleit and Egli 1979;Kato 1999;Talbert et al 2001). The yield of crops could be increased by selecting for longer filling durations and higher filling rates (Jones et al 1979;Smith and Nelson 1986a, b;Talbert et al 2001;Yang et al 2008).…”

Section: Introductionmentioning

confidence: 99%

Identification of QTL underlying the oil filling rate at different developmental stages of soybean seed

et al. 2010

View full text Add to dashboard Cite

The oil accumulation in the developing soybean seed has been shown to be a dynamic process with different rates and activities at different phases. Transcript abundance measurements showed oil accumulation was affected by multiple genetic loci that were active in different seed filling phases (Schmutz et al., Nature 463:178-183, 2010). The objective of this study was to identify quantitative trait loci (QTL) controlling oil accumulation during seed development. One hundred forty-three recombinant inbred lines (RILs) derived from the cross of Charleston and Dongnong 594 were used to obtain two year field data in 2004 and 2005. Thirty-four unconditional QTL underlying oil filling rate at the different developmental stages were mapped onto fourteen linkage groups. The phenotypic variation on oil filling rate explained by these unconditional QTL ranged from 4.9 to 34.8%. Thirty-five conditional QTL underlying the oil filling rate of seed were mapped onto fifteen linkage groups. The phenotypic variation explained by these conditional QTL ranged from 5.4 to 26.0%. The locations, numbers, genetic effects and types of QTL for oil filling rate were different at each seed developmental stage. Genotype by environment (G 9 E) interaction effects among some QTL underlying oil filling rate were observed. In addition, several genomic regions affected seed oil filling rate were detected. Therefore, oil QTL detected with data from harvest time may miss or erroneously locate the key loci.

show abstract

Genetic and Environmental Variations and Associations of the Characters Related to the Grain-Filling Process in Rice Cultivars

Cited by 9 publications

References 18 publications

Variation and Association of the Traits Related to Grain Filling in Several Extra-Heavy Panicle Type Rice under Different Environments

Variation and Association of the Traits Related to Grain Filling in Several Extra-Heavy Panicle Type Rice under Different Environments

Identification of QTL underlying the filling rate of protein at different developmental stages of soybean seed

Identification of QTL underlying the oil filling rate at different developmental stages of soybean seed

Contact Info

Product

Resources

About