Higher level phylogenetics of
linyphiid spiders based on morphological and molecular evidence.
(this project is done in collaboration with
from the George Washington University, Washington DC, USA and
from the University of Barcelona, Barcelona, Spain)
The project aims at reconstructing the
higher level cladistic relationships of linyphiid spiders, based on
combined molecular and morphological data. We have collected character
data for a sample of 33 linyphiid species in 30 genera, representing the
currently used subfamilies of Linyphiidae (Stemonyphantinae,
Mynogleninae, Erigoninae and Linyphiinae (Micronetini plus Linyphiini)).
Outgroup taxa are represented by 10 species (from the araneoid families
Pimoidae, Theridiidae, Nesticidae, Synotaxidae, Cyatholipidae,
Mysmenidae, Theridiosomatidae, Tetragnathidae, and Araneidae). The
morphological characters include those used in recent studies of
linyphiid and araneoid phylogenetics, covering both genitalic and
somatic morphology. The sequence data includes both mitochondrial (CO I
and 16S) and nuclear markers (28S, 18S, and Histone H3). We will explore
and quantify the contribution of different character partitions and
their sensitivity to changes in the traditional parameters.