Urocitellus parryii isolate:AGS 11-09-20 Genome sequencing and assembly

The Arctic ground squirrel (Urocitellus parryii, formerly Spermophilus parryii) is a diurnal, hibernating ground squirrel that is native to the Arctic. Adult females hibernate over winter from early August to late April, and adult males from late September to early April, at which time they can reduce their metabolism by 98% and the core body temperature from 37 °C to -2.9 °C. Torpor bouts during hibernation, like in other small hibernators, is periodically interrupted by spontaneous arousal episodes when animals raise their metabolism and body temperature returns to euthermic levels (>30 °C) for <24 hours.

北极地松鼠（Urocitellus parryii，原分类为Spermophilus parryii）是一种昼行性的冬眠型地松鼠，原产于北极地区。成年雌性的冬眠周期为每年八月初至四月末，成年雄性则为九月末至次年四月初；在此冬眠期间，它们的新陈代谢可降低98%，核心体温可从37°C降至-2.9°C。与其他小型冬眠动物类似，其冬眠过程中的蛰伏期（torpor bouts）会被自发觉醒事件周期性打断：此时动物会恢复新陈代谢，体温回升至恒温常态水平（>30°C），且该状态持续时长不足24小时。