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. 2018 Aug 13;18:166. doi: 10.1186/s12870-018-1369-3

Fig. 5.

Fig. 5

Phylogenetic tree analysis of RWP-RK domain-containing proteins in Arabidopsis and Citrus by the neighbor-joining (NJ) method. The tree is divided into two major nodes of NLPs and RKDs. NLP: NIN-like protein, RKD: RWP-RK domain-containing protein. There are three RKD homologs derived from different loci in the clementine mandarin genome (Ciclev10010497m in scaffold 1, Ciclev10032332m in scaffold 4, Ciclev10027531m in scaffold 7). The Citrus CitRKD1 alleles were clustered with CitRKD1-clm (Ciclev10010497m) in scaffold 1, which corresponds to the polyembryonic locus controlling embryonic type