Genome-wide characterization and expression profiling of SWEET genes in cabbage (Brassica oleracea var. capitata L.) reveal their roles in chilling and clubroot disease responses

Table 2 Non-synonymous (Ka) and synonymous substitution rate (Ks) between orthologous SWEET gene pairs in B. oleracea and A. thaliana

Orthologous gene pairs		Ka	Ks	Ka/Ks	Duplication date (MYA)
AtSWEET1	BoSWEET1a	0.0393	0.4481	0.0877	14.9
AtSWEET1	BoSWEET1b	0.0404	0.3674	0.1100	12.2
AtSWEET2	BoSWEET2a	0.0458	0.2509	0.1825	8.4
AtSWEET2	BoSWEET2b	0.0756	0.368	0.2054	12.3
AtSWEET3	BoSWEET3a	0.1024	0.3765	0.2720	12.6
AtSWEET3	BoSWEET3b	0.1163	0.39	0.2982	13.0
AtSWEET4	BoSWEET4a	0.0491	0.3639	0.1349	12.1
AtSWEET4	BoSWEET4b	0.0624	0.3623	0.1722	12.1
AtSWEET5	BoSWEET5a	0.0709	0.3544	0.2001	11.8
	BoSWEET5b	0.0509	0.3204	0.1589	10.7
	BoSWEET5c	0.0853	0.3782	0.2255	12.6
AtSWEET7	BoSWEET7a	0.0863	0.4894	0.1763	16.3
AtSWEET7	BoSWEET7b	0.1344	0.6556	0.2050	21.9
AtSWEET8	BoSWEET8	0.2009	1.3091	0.1535	43.6
AtSWEET9	BoSWEET9	0.0642	0.2567	0.2501	8.6
AtSWEET10	BoSWEET10	0.101	0.4938	0.2045	16.5
AtSWEET11	BoSWEET11a	0.0434	0.2373	0.1829	7.9
	BoSWEET11b	0.0214	0.2179	0.0982	7.3
	BoSWEET11c	0.0287	0.179	0.1603	6.0
AtSWEET12	BoSWEET12a	0.0599	0.3024	0.1981	10.1
AtSWEET12	BoSWEET12b	0.0476	0.3442	0.1383	11.5
AtSWEET13	BoSWEET13	0.0961	0.2736	0.3512	9.1
AtSWEET14	BoSWEET14a	0.0712	0.312	0.2282	10.4
	BoSWEET14b	0.0652	0.3597	0.1813	12.0
	BoSWEET14c	0.0967	0.3643	0.2654	12.1
AtSWEET15	BoSWEET15a	0.1207	0.3539	0.3411	11.8
AtSWEET15	BoSWEET15b	0.1114	0.344	0.3238	11.5
AtSWEET16	BoSWEET16a	0.0912	0.3653	0.2497	12.2
AtSWEET16	BoSWEET16b	0.1011	0.4047	0.2498	13.5
AtSWEET17	BoSWEET17	0.0457	0.3157	0.1448	10.5

ISSN: 1471-2164