Table 1. Nucleotide polymorphisms at the PtGA20Ox locus.

Region	No. of bp	No. of polymorphic sites	Percentage polymorphism	Nucleotide diversity
				π	θw
5′ UTR	126	2	1.59	0.00936	0.00442
Exon 1	569	15	2.64	0.00865	0.00636
Synonymous	122.30	9	7.36	0.01901	0.01901
Non-synonymous	444.70	6	1.35	0.00583	0.00325
Intron 1	111	10	9.01	0.03478	0.02173
Exon 2	322	9	2.80	0.00594	0.00674
Synonymous	69.70	8	11.48	0.02587	0.02768
Non-synonymous	251.30	1	0.40	0.00043	0.00096
Intron 2	181	6	3.31	0.01012	0.00851
Exon 3	267	6	2.25	0.00655	0.00542
Synonymous	59.19	3	5.07	0.00458	0.01222
Non-synonymous	204.81	3	1.46	0.00721	0.00353
3′ UTR	117	7	5.98	0.01081	0.01455
Total silenta	761.19	45	5.91	0.01610	0.01426
Synonymous	252.19	20	7.93	0.01745	0.01912
Non-synonymous	902.81	10	1.11	0.00463	0.00267
Total PtGA20Ox b	1693	55	3.25	0.00988	0.00797

^aTotal silent = synonymous plus silent sites.

^bTotal PtGA20Ox = silent sites plus non-synonymous sites.

Regions containing indels were excluded from the calculations.