Genome-scale transcriptional analyses of first-generation interspecific sunflower hybrids reveals broad regulatory compatibility

Table 1 External phenotypes of H. annuus cmsHA89, H. petiolaris Pet2152, and F1 hybrid offspring

	Pollen	Days to flowering^a	Number of flowers^b	Flower diameter (mm)^c	Trichome density^d	Branching^e
H. annuus cmsHA89	N	67.3 (2.0)	1.2 (0.7)	43.3 (12.3)	437.4 (180.5)	0 (0)
H. petiolaris Pet2152	Y	62 (6.2)	48.1 (7.3)	15.8 (2.5)	0 (0)	8.7 (1.2)
F1 (mean)	Y/N	54.4 (2.0)	15.5 (7.2)	29.3 (4.6)	48.3 (40.9)	5.9 (1.7)
F1.01	N	52	11	32.3	31.5	7
F1.03	N	52	22	30.2	59.3	8
F1.04	N	55	5	29.2	25.9	5
F1.07	Y	55	14	28.5	53.7	7
F1.14	N	55	11	26.9	36.1	6
F1.17	Y	53	16	25.8	25.9	7
F1.TA	Y	54	17	21.6	51.9	6
F1.TB	N	55	17	24.8	11.1	4

Data provided are mean values (standard deviation). Phenotypes for individual F1 plants sampled for transcript sequencing are provided below the mean values for the total (n = 52) F1 plants grown. ^anumber of days post-germination when the first flower opened; ^bnumber of flowers produced by the plant; ^cdisk diameter for the first flower (does not include ray flowers); ^dfoliar glandular trichomes per cm² leaf abaxial surface; ^etotal number of lateral branches > 2 mm in thickness.

ISSN: 1471-2164