Early consequences of allopolyploidy alter floral evolution in Nicotiana (Solanaceae).

ABSTRACT:

Background

Polyploidy has played a major role in angiosperm evolution. Previous studies have examined polyploid phenotypes in comparison to their extant progenitors, but not in context of predicted progenitor phenotypes at allopolyploid origin. In addition, differences in the trends of polyploid versus diploid evolution have not been investigated. We use ancestral character-state reconstructions to estimate progenitor phenotype at allopolyploid origin to determine patterns of polyploid evolution leading to morphology of the extant species. We also compare trends in diploid versus allopolyploid evolution to determine if polyploidy modifies floral evolutionary patterns.

Results

Predicting the ancestral phenotype of a nascent allopolyploid from reconstructions of diploid phenot

SUBMITTER: McCarthy EW 

PROVIDER: S-EPMC6486959 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature