Table 1.

The Kolmogorov-Smirnov test of gene clustering by the functional category in cpDNAs §

cpDNA	Dn (p-value)
	Translation and transcription	Photosystem I and II	Electron Transport	ATP synthase
Chlorella	0.214(.6418)	0.488(.0066)	0.750(.0000)	0.833(.0000)
Chlamydomonas	0.198(.6866)	0.473(.0060)	0.780(.0000)	0.769(.0000)
Nephroselmis	0.209(.6207)	0.484(.0046)	0.703(.0000)	0.846(.0000)
Mesostigma	0.275(.2786)	0.549(.0008)	0.769(.0000)	0.846(.0000)
Chaetosphaeridium	0.242(.4388)	0.484(.0046)	0.714(.0000)	0.846(.0000)
Marchantia	0.341(.0986)	0.473(.0060)	0.714(.0000)	0.846(.0000)
Nicotiana	0.264(.3283)	0.473(.0060)	0.769(.0000)	0.846(.0000)

§The test statistic D_n measures whether the distribution of functionally related genes is random in gene clusters. Total 85 shared genes between seven cpDNAs were included.