ArticleScientific reports2021
Linkage mapping identifies a non-synonymous mutation in FLOWERING LOCUS T (FT-B1) increasing spikelet number per spike.
Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.
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17 citing papers in PubMed, 23 citations in OpenAlex.
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- Genomic prediction using a cost-effective mid-density SNP platform in spring wheat.Frontiers in plant science · 2026Article
- Enhancing genomic predictive ability of yield and yield-related traits in spring wheat by integrating major plant adaptation genes as a fixed effect.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2025Article
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- A natural variation in the promoter of TaGDSL-7D contributes to grain weight and yield in wheat.Plant biotechnology journal · 2025Article
- TaFT-D1 positively regulates grain weight by acting as a coactivator of TaFDL2 in wheat.Plant biotechnology journal · 2025Article
- Breeding potential of Spanish bread wheat landraces: genetic variability in vernalization and photoperiod sensitivity.Frontiers in plant science · 2025Article
- Chromosome-scale reference genome of an ancient landrace: unveiling the genetic basis of seed weight in the food legume crop pigeonpea (Horticulture research · 2024Article
- Identification and validation of two major QTL for grain number per spike on chromosomes 2B and 2D in bread wheat (Triticum aestivum L.).TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2024Article
- Overexpression of the WAPO-A1 gene increases the number of spikelets per spike in bread wheat.Scientific reports · 2022Article
- A single nucleotide deletion in the third exon of FT-D1 increases the spikelet number and delays heading date in wheat (Triticum aestivum L.).Plant biotechnology journal · 2022Article
- Identification and validation of a QTL for spikelet number on chromosome arm 6BL of common wheat (Molecular breeding : new strategies in plant improvement · 2022Article
- MiR172-APETALA2-like genes integrate vernalization and plant age to control flowering time in wheat.PLoS genetics · 2022Article
- Identification and characterization of a natural polymorphism in FT-A2 associated with increased number of grains per spike in wheat.TAG. Theoretical and applied genetics. Theoretische und angewandte Genetik · 2022Article
- Four-Year and Five-Developing-Stage Dynamic QTL Mapping for Tiller Number in the Hybrid Population ofFrontiers in plant science · 2022Article
- Advancing understanding of oat phenology for crop adaptation.Frontiers in plant science · 2022Review
- Comparative Genetic Analysis of Durum Wheat Landraces and Cultivars Widespread in Tunisia.Frontiers in plant science · 2022Article
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5 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Total spikelet number per spike (TSN) is a major component of spike architecture in wheat (Triticum aestivum L.). A major and consistent quantitative trait locus (QTL) was discovered for TSN in a doubled haploid spring wheat population grown in the field over 4 years. The QTL on chromosome 7B explained up to 20.5% of phenotypic variance. In its physical interval (7B: 6.37-21.67 Mb), the gene FLOWERING LOCUS T (FT-B1) emerged as candidate for the observed effect. In one of the parental lines, FT-B1 carried a non-synonymous substitution on position 19 of the coding sequence. This mutation modifying an aspartic acid (D) into a histidine (H) occurred in a highly conserved position. The mutation was observed with a frequency of ca. 68% in a set of 135 hexaploid wheat varieties and landraces, while it was not found in other plant species. FT-B1 only showed a minor effect on heading and flowering time (FT) which were dominated by a major QTL on chromosome 5A caused by segregation of the vernalization gene VRN-A1. Individuals carrying the FT-B1 allele with amino acid histidine had, on average, a higher number of spikelets (15.1) than individuals with the aspartic acid allele (14.3) independent of their VRN-A1 allele. We show that the effect of TSN is not mainly related to flowering time; however, the duration of pre-anthesis phases may play a major role.
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