Molecular phylogeny and forms of photosynthesis in tribe Salsoleae (Chenopodiaceae).

ABSTRACT: While many C₄ lineages have Kranz anatomy around individual veins, Salsoleae have evolved the Salsoloid Kranz anatomy where a continuous dual layer of chlorenchyma cells encloses the vascular and water-storage tissue. With the aim of elucidating the evolution of C₄ photosynthesis in Salsoleae, a broadly sampled molecular phylogeny and anatomical survey was conducted, together with biochemical, microscopic, and physiological analyses of selected photosynthetic types. From analyses of photosynthetic phenotypes, a model for evolution of this form of C₄ was compared with models for evolution of Kranz anatomy around individual veins. A functionally C₃ proto-Kranz phenotype (Proto-Kranz Sympegmoid) and intermediates with a photorespiratory pump (Kranz-

SUBMITTER: Schussler C 

PROVIDER: S-EPMC5853613 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature