Table 4.

The numbers of eight categories of flagellum-associated genes of two Nannochloropsis species and their comparison with those (in average) of protists determined early³⁵

Gene category	Motile protists	Motile small protists	Nonmotile protists	N. oceanica	N. gaditana	Gene category
Structural gene	Tubulin	4	4	4	2	2
	Radial spoke	15	15	8	2	1
	Central pair	11	10	8	6	4
	ODA	19	19	11	6	4
	IDA	21	21	16	4	2
Functional gene	IFT-A complex	6	6	1	2	0
	IFT-B complex	21	20	6	7	4
	BBSome	8	8	2	0	0
Total	104	104	55	29	17	Total

Nonmotile species include stramenopiles, haptophytes, diatoms, and green algae; motile species are all dinoflagellates; motile small species include cryptophytes, euglenophytes, stramenopiles, and haptophytes. The genes of N. oceanica are searched against the genome obtained in this study, while those of N. gaditana are searched against the genome published early¹⁹ (searching with e-value < e⁻⁵ as the threshold of expected hits; filtrated with those of full lengths as candidates and accepted as the protein expected if a candidate shows the highest similarity which is usually extremely less than the e-value threshold for searching and is annotated simultaneously as the expected). ODA, outer dynein arm; IDA, inner dynein arm