Figure 1
From: Genome mapping of postzygotic hybrid necrosis in an interspecific pear population

HN phenotypes in the Pyrus interspecific PEAR3 × ‘Moonglow’ population. Three distinct phenotypes were observed in the seedlings. Pictures were taken 30 days after germination: (a) ‘Type 1’ seedlings had stopped growing and chlorosis and necrotic lesions were apparent on their leaves; (b) ‘Type 2’ seedlings initially grew normally; however, their leaves began to cup downwards and to become chlorotic and necrotic. (c) ‘Type 3’ seedlings grew normally.