While Aha! allows for creating and visualizing dependencies between features in the Releases -> Roadmap view and within the Feature details page, these dependency relationships are not included as part of the integration with Jira.
There is only one instance where a dependency is sent to Jira. This occurs in the 1.0 version of the Jira integration when sending records from Aha! to Jira that do not have a natural parent child relationship to each other within Jira.
Aha! Feature = Jira Story
Aha! Requirement = Jira Story
Since a Story cannot be a child object of another Story in Jira, we inject a "Relates to" dependency so that the team in Aha! can communicate that the two records are related to each other in Jira.