Table 3.

C. elegans olfactory receptor orthologues present in plant pathogenic nematodes, their predicted functions, and E-values of DNA sequence similarities.

C. elegans GPCR	Predicted function	Species	Orthologue	E-value
SRV-11	Pentanedione avoidance	B. xylophilus	BXY_0066100	3.00E-11
		B. xylophilus	BXY_1231200	4.00E-10
		B. xylophilus	BXY_0069300	2.00E-09
SRV-12	Benzaldehyde attraction	B. xylophilus	BXY_0066100	5.00E-10
		B. xylophilus	BXY_1231200	3.00E-07
		B. xylophilus	BXY_0069300	1.00E-06
SRSX-26	Butanone attraction	B. xylophilus	BXY_1070000	4.00E-10
		B. xylophilus	BXY_1013200	1.00E-07
SRSX-32	Pyrazine attraction	B. xylophilus	BXY_1070000	3.00E-10
		B. xylophilus	BXY_1013200	2.00E-07
		B. xylophilus	BXY_1013400	4.00E-05
		B. xylophilus	BXY_0557500	6.00E-04
		B. xylophilus	BXY_0027800	9.00E-04
SRSX-33	Pentanedione and pyrazine attraction	B. xylophilus	BXY_1070000	2.00E-06
		B. xylophilus	BXY_0809300	3.00E-06
		B. xylophilus	BXY_1013400	3.00E-05
		B. xylophilus	BXY_0557500	9.00E-05
		B. xylophilus	BXY_0027800	2.00E-04
SRSX-37	Pentanedione attraction	B. xylophilus	BXY_1013400	3.00E-09
SRT-18	Diacethyl avoidance	B. xylophilus	BXY_1024600	5.00E-20
SRT-25	Diacethyl avoidance	B. xylophilus	BXY_1024600	9.00E-20
SRG-37	Pyrazine attraction	M. incognita	Minc3s00775g17185	2.30E-02
		M. arenaria	tig00002579.g60974	5.90E-02

Homologies were determined using Protein BLAST from WormBase ParaSite (https://parasite.wormbase.org/index.html) with the protein sequences of the 194 C. elegans chemoreceptors described by Taniguchi et al. (2014) against the following proteome databases: Bursaphelenchus_xylophilus_prjea64437, Meloidogyne_arenaria_prjna438575 and Meloidogyne_incognita_prjeb8714, Globodera_rostochiensis_prjeb13504, and Heterodera_glycines_prjna381081 using the default setting.