Small Genome Size Ensures Adaptive Flexibility for an Alpine Ginger.

ABSTRACT: Understanding the proximate and ultimate causes of genome size variation has been the focus of considerable research. However, the extent and cause of intraspecific variation in genome size are debated and poorly understood. This study aimed to test the role of genome size in adaptation through variations in intraspecific genome size. Genome size was measured in 53 Roscoea tibetica populations from the Hengduan Mountains using flow cytometry. Stomatal size and density data were collected from wild and common garden populations. Associations among genome size, environmental factors, and stomatal traits were explored. We found that high genome size variability was positively correlated with most environmental factors but negatively correlated with solar radiation during the growing season. T

SUBMITTER: Xiao QS 

PROVIDER: S-EPMC12342737 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature