A reassessment of the genome size-invasiveness relationship in reed canarygrass (Phalaris arundinacea).

ABSTRACT:

Background and aims

Genome size is hypothesized to affect invasiveness in plants. Key evidence comes from a previous study of invasive eastern North American populations of the grass Phalaris arundinacea: invasive genotypes with smaller genomes had higher growth rates, and genome sizes were smaller in the invasive vs. native range. This study aimed to re-investigate those patterns by examining a broader range of North American populations and by employing the modern best-practice protocol for plant genome size estimation in addition to the previously used protocol.

Methods

Genome sizes were measured using both internal and pseudo-internal standardization protocols for 20 invasive and nine native range accessions of P. arundinacea. After a round of vegetative propagation to r

SUBMITTER: Martinez MA 

PROVIDER: S-EPMC6007324 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature