Genome-model-organism
Guides
Aeshna juncea
Common Hawker, Moorland Hawker, Sedge Darner
Aeshna juncea, known as the Common Hawker, Moorland Hawker, or Sedge Darner, is a large hawker dragonfly with a Holarctic distribution spanning the Palearctic from Ireland to Japan and northern North America. It is one of the larger Aeshna species and is strongly associated with acidic bog habitats, particularly in Scotland where it is a prominent bog specialist. The species has a flight period from June to early October. Recent genomic research has revealed that Alaskan populations underwent population bottlenecks during the most recent ice age, and the species has been used as a model for studying genome size variation in Odonata driven by transposons and repetitive elements.
Aphonopelma marxi
Grand Canyon Black Tarantula
Aphonopelma marxi is a North American tarantula species in the family Theraphosidae, commonly known as the Grand Canyon Black Tarantula. It is a medium-sized, dark-colored species belonging to the 'Marxi species group' of mainly black, high-elevation tarantulas. The species was first described in 1891 and has undergone taxonomic revision, with two former species (A. behlei and A. vogelae) now recognized as synonyms. It is widely distributed but difficult to observe due to its fossorial habits.
Tetranychus urticae
twospotted spider mite, two-spotted spider mite, red spider mite
Tetranychus urticae, the twospotted spider mite, is a minute phytophagous mite and among the most destructive agricultural pests worldwide. Adults measure approximately 0.4 mm and are typically pale green for most of the year, turning red in later generations. The species is extremely polyphagous, feeding on over 1,100 plant species across 140 families. It reproduces through arrhenotokous parthenogenesis, with females emerging from fertilized eggs and males from unfertilized eggs. Populations can increase explosively under hot, dry conditions, expanding 70-fold in as few as six days. The species exhibits the highest frequency of pesticide resistance among arthropods and was the first chelicerate to have its genome fully sequenced (2011).