Figure 3.

Statistical analyses carried out on accessions characterized by the pigmentation of young leaves. (a) Principal component analysis; cluster dendrograms based on the distribution of expression data focusing on (b) accessions and (c) genes where AU refers to Approximately Unbiased p-value and BP is for Bootstrap Probability value. Each accession is indicated by a code: ‘Zagara bianca’—ZB, ‘Red lime’—RL, ‘Rangpur lime’—RaL, ‘Incomparabile’—LI, ‘Pink fleshed’—PF, Citrus latipes—CL, ‘Tahiti’—LT, C. volkameriana—CV, C._hystrix—CH, ‘Mexican lime’—LMT, ‘Lima rossa corrugata’—LR, C. celebica—CC, ‘Buddha’s hand’—MB, M. australasica var. sanguinea—MAS, ‘Diamante’—CD, ‘Meyer’—LM, ‘Femminello Adamo’—FA.