Fig. 2: Natural TSP4a and TSP4b alleles enhance yield under heat stress. | Nature Communications

Fig. 2: Natural TSP4a and TSP4b alleles enhance yield under heat stress.

From: A feedback loop at the THERMOSENSITIVE PARTHENOCARPY 4 locus controls tomato fruit set under heat stress

Fig. 2

a Percentage of seedless fruit for natural alleles with different combinations, including TSP4aMM4bMM (n = 6 plants), TSP4aXHS0724bMM (n = 6 and 7 plants), TSP4aMM4b XHS072 (n = 6 plants), TSP4aXHS0724bH(n = 6 plants), TSP4aH4bXHS072 (n = 8 and 6 plants), TSP4aXHS0724b XHS072 (n = 8 plants) grown under control and heat-stress conditions in the greenhouse. ‘H’ represents the heterozygous haplotype of Moneymaker/XHS072. Data are the mean ± S.D. and were compared by two-tailed Mann–Whitney–U test, **P < 0.01, n.s. non-significant (P > 0.05). Number of fruit (b) and fruit weight (c) for alleles with different combinations of TSP4a and TSP4b haplotypes from plants grown under heat-stress conditions in the greenhouse. d Leaf and fruit phenotypes of alleles with different combinations of TSP4a and TSP4b haplotypes from 120-d old plants grown under heat-stress conditions in the greenhouse. Scale bar = 2 cm. e Fruit yield from TSP4aMM4bMM, TSP4aXHS0724bH, TSP4aH4bXHS072 and TSP4aXHS0724bXHS072 plants grown under heat-stress conditions in the greenhouse in Beijing, Nankou, 2023. f Leaf and fruit phenotypes of Moneymaker, tsp4acr single mutants, tsp4bcr single mutants and tsp4a/4bcr double mutants from 120-d old plants grown under heat stress in the greenhouse. Scale bars, 2 cm. Fruit weight (g), fruit number (h) and fruit yield (i) for Moneymaker, tsp4acr single mutants, tsp4bcr single mutants and tsp4a/4bcr double mutants grown under heat-stress conditions in the greenhouse in Beijing, Nankou, 2023. Box edges in (a–c, g, h) represent the 0.25 and 0.75 quantiles, the center line indicate median values, and the bar shows the range from minimum to maximum values. Data in (b, c, e, g–i) are the mean ± S.D. of n = 5 plants. The effect of genotype on y-axis traits was determined by one-way ANOVA with multiple comparisons and Tukey post-hoc test (α = 0.05). *P < 0.05, **P < 0.01, n.s. non-significant (P > 0.05). Source data are provided as a Source Data file.

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