In silico characterization of putative gene homologues involved in somatic embryogenesis suggests that some conifer species may lack LEC2, one of the key regulators of initiation of the process

Table 1 Gene-wise references used for detecting the different domains in the respective genes involved in initiation of somatic embryogenesis in conifers

Genes involved in initiation of somatic embryogenesis	References
BABYBOOM (BBM)	[41, 42, 83, 84, 109]
LEAFY COTYLEDON (LEC)	[77,78,79,80, 110]
FUSCA3 (FUS3)	[72, 82]
ABSCISIC ACID INSENSITIVE 3 (ABI3) or VIVIPAROUS (VP1)	[35, 111, 112]
EMBRYOMAKER (EMK)	[43]
WUSCHEL (WUS) and WUSCHEL-related homeobox (WOX) 2	[7, 8, 48, 51]
Somatic embryogenesis receptor kinases (SERK)	[90, 91, 113]
Genes involved in suppression somatic embryogenesis
PICKLE (PKL)	[58, 108]
VP1/ABI3-LIKE (VAL)	[59, 60, 65]

ISSN: 1471-2164