Fig. 2From: Genome-wide identification of polyamine metabolism and ethylene synthesis genes in Chenopodium quinoa Willd. and their responses to low-temperature stressPhylogenetic trees of quinoa, Arabidopsis, and rice (a) PA synthesis gene family, (b) PA catabolism gene family, (c) ACS gene family in the ethylene synthesis pathway, (d) ACO gene family in the ethylene synthesis pathwayBack to article page