Genome-wide analysis of metallothionein gene family in maize to reveal its role in development and stress resistance to heavy metal

Table 2 Paralogous and Ka/Ks analysis of the ZmMT gene pairs duplication

Seq_1	Seq_2	Ka	Ks	Ka/Ks	Divergence time (Mya)
ZmMT5	ZmMT6	0.07	0.03	2.60	2.11
ZmMT2	ZmMT5	0.14	0.10	1.43	7.45
ZmMT2	ZmMT6	0.14	0.12	1.23	8.97
ZmMT1	ZmMT7	0.23	0.23	0.99	17.78
ZmMT7	ZmMT8	0.27	0.36	0.74	28.05

The ratio of the number of nonsynonymous substitutions per nonsynonymous site (Ka) to the number of synonymous substitutions per synonymous site (Ks)

ISSN: 0717-6287