Somatic Mutation Analysis in Salix suchowensis Reveals Early-Segregated Cell Lineages.

ABSTRACT: Long-lived plants face the challenge of ever-increasing mutational burden across their long lifespan. Early sequestration of meristematic stem cells is supposed to efficiently slow down this process, but direct measurement of somatic mutations that accompanies segregated cell lineages in plants is still rare. Here, we tracked somatic mutations in 33 leaves and 22 adventitious roots from 22 stem-cuttings across eight major branches of a shrub willow (Salix suchowensis). We found that most mutations propagated separately in leaves and roots, providing clear evidence for early segregation of underlying cell lineages. By combining lineage tracking with allele frequency analysis, our results revealed a set of mutations shared by distinct branches, but were exclusively present in leaves and not

SUBMITTER: Ren Y 

PROVIDER: S-EPMC8662653 | biostudies-literature | 2021 Dec

REPOSITORIES: biostudies-literature