Range-wide phenotypic and genetic differentiation in wild sunflower

BMC Plant Biology

Table 2 Phenotypic variability among five latitudinal regional groupings of sunflower populations

Trait	F-ratio	P-value	Region 1: TX1, TX2, TX3	Region 2: TX4, TX5, OK1	Region 3: NE1, NE2, WY1	Region 4: MT1, MT2, ND1	Region5: SAS1, SAS2, SAS3
Days to Four Pairs of Leaves	4.1906	0.0267	23.42^B	23.85^A,B	24.17^A,B	24.28^A,B	24.98^A
Days to Flowering	226.6019	<.0001	69.93^B	75.80^A	68.77^B	51.75^C	49.31^C
Days between Four Pairs of Leaves and Flowering	74.905	<.0001	46.52^A,B	51.98^A	44.53^B	27.47^C	30.44^C
Plant Height (cm)	89.4095	<.0001	191.55^A	170.32^A,B	164.19^B	110.85^C	78.17^D
Longest Branch Length (cm)	15.667	0.0002	57.72^A	41.66^B	47.83^B	57.86^A	45.68^B
Degree of Branching¹	18.3082	<.0001	3.02^A	2.46^B	2.62^B	3.30^A	2.64^B
Stem Diameter (mm)	17.9575	<.0001	15.13^A	13.82^A,B	12.98^B	13.19^B	10.46^C
Total Branching	9.0473	0.0012	10.20^A,B	8.58^B,C	7.31^C	10.97^A	9.87^A,B
Top Half Branching	35.1134	<.0001	7.52^A	7.21^A	5.17^B	4.02^B,C	3.43^C
Weight per Seed	14.0714	0.0003	0.007^B,C	0.006^C	0.008^A,B	0.009^A	0.008^A,B
Seed Length (mm)	31.0011	0.0005	4.81^B,C	4.64^C	4.92^B	5.14^A	5.27^A
Seed Width (mm)	6.1076	0.009	2.40^A,B	2.28^B	2.41^A,B	2.55^A	2.45^A,B
Percent Palmitic Acid	31.6781	0.0003	5.05^A	4.60^A,B	4.09^B	3.93^B	3.09^C
Percent Stearic Acid	13.7987	0.014	2.26^A	2.34^A,B	1.56^A,B,C	1.23^B,C	0.82^C
Percent Linoleic Acid	0.6313	0.6587	60.01^A	52.39^A	57.94^A	63.45^A	59.06^A
Percent Oleic Acid	0.6725	0.6353	32.69^A	40.69^A	36.33^A	31.39^A	37.01^A
Percent Saturated Fatty Acids	60.4987	0.0043	7.30^A	6.93^A,B	5.66^B,C	5.15^C	3.90^D
Percent Oil	1.059	0.4418	23.48^A	21.09^A	22.98^A	22.84^A	23.05^A

¹Degree of branching describes the greatest amount of branching attained (i.e., a value of 2 corresponds to secondary, 3 corresponds to tertiary)
Values that share a superscript letter are not statistically different

ISSN: 1471-2229