+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Effect of the hope FT-B1 allele on wheat heading time and yield components

Effect of the hope FT-B1 allele on wheat heading time and yield components

Journal of Heredity 105(5): 666-675

Precise regulation of flowering time is critical for plant reproductive success and, in cereals, to maximize grain yields. Seasonal cues including temperature and day length are integrated to regulate the timing of flowering. In temperate cereals, extended periods of cold (vernalization) release the repression of FLOWERING LOCUS T1 (FT1), which is upregulated in the leaves in response to inductive long-day photoperiods. FT1 is a homolog of rice HD3a, which encodes a protein transported from leaves to the shoot apical meristem to induce flowering. A rare FT-B1 allele from the wheat variety "Hope" has been previously shown to be associated with an early flowering phenotype under long-day photoperiods. Here, we demonstrate that the Hope FT-B1 allele accelerates flowering even under short days, and that it is epistatic to the VERNALIZATION 1 (VRN1) gene. On average, the introgression of Hope FT-B1 into 6 genetic backgrounds resulted in 2.6 days acceleration of flowering (P<0.0001) and 4.1% increase in spike weight (P=0.0093), although in one variety, it was associated with a decrease in spike weight. These results suggest that the Hope FT-B1 allele could be useful in wheat breeding programs to subtly accelerate floral development and increase adaptation to changing environments.

Please choose payment method:

(PDF emailed within 0-6 h: $19.90)

Accession: 052833035

Download citation: RISBibTeXText

PMID: 25063863

DOI: 10.1093/jhered/esu042

Related references

Distribution of photoperiod-insensitive allele Ppd-A1a and its effect on heading time in Japanese wheat cultivars. Breeding Science 63(3): 309-316, 2013

Molecular characterization of a novel vernalization allele Vrn-B1d and its effect on heading time in Chinese wheat (Triticum aestivum L.) landrace Hongchunmai. Molecular Breeding 38(10): 127, 2018

Analysis of developmental factors determining yield and its application to yield prediction and culture improvement of lowland rice XLVIII Studies on the mechanism of ripening Relation of the percentage of ripened grains and the yield of grain to the amount of carbohydrates stored by the time of heading, that of carbohydrates accumulated after heading and the nitrogen content at heading time. Proc Crop Sci Soc Japan: 201-203, 1958

Effect of shading before and after heading time on growth and yield of spring wheat. Japanese Journal of Crop Science 55(4): 513-519, 1986

Breeding measurements for heading date, yield and yield components in wheat using line x tester analysis. Annals of Agricultural Science Cairo 47(2): 587-609, 2002

Assessment of the effect of ten heading time genes on reproductive transition and yield components in rice using a CRISPR/Cas9 system. Tag. Theoretical and Applied Genetics. Theoretische und Angewandte Genetik 132(6): 1887-1896, 2019

The path coefficient analysis of heading on maturity and the effect of heading on yield quantities and grain quality in wheat. Ain Shams University Faculty of Agriculture Research Bulletin (1618): 1-18, 1981

Identification of a new Vrn-B1 allele using two near-isogenic wheat lines with difference in heading time. Molecular Breeding 29(3): 675-685, 2012

Genetic studies on sowing-to-heading and heading-to-ripening periods in barley and their relation to yield and yield components. Canadian Jour Genet And Cytol 3(3): 242-259, 1961

Yield potential of bread wheat in the Po Valley. 1. Relationship among yield, heading time and duration of the grain filling period. Agricoltura Ricerca 53: 7-14, 1985

Effect of time of planting on the grain yield and yield components of rainfed wheat grown at three localities in Malawi. Sixth Regional Wheat Workshop for eastern, central and southern Africa: 90-95, 1990

Effect of nitrogen fertilization rates and time of harvesting on yield and yield components of the Mexipack wheat cultivar (T. aestivum L.). Acta Agronomica Academiae Scientiarum Hungaricae 31(3/4): 316-322, 1982

Correlation of yield with its components, date of heading and protein content in wheat (T. aes-tivum L.). W. Pak. Jnl agric. Res, 6: 1, 11-15. Bibl. 10, 1968

Selection for early heading and correlated response in grain yield and its components of spring wheat. Assiut Journal of Agricultural Sciences 24(4): 95-106, 1993

Effect of nitrogen fertilization rates and time of harvesting on yield and yield components of the Mexipack wheat cultivar (Triticum aestivum L.) Egypt. Acta agronomica Academiae Scientiarum Hungaricae1(3-4): 316-322, 1982