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Fig. 4 | BMC Ecology and Evolution

Fig. 4

From: The evolutionary history of cribellate orb-weaver capture thread spidroins

Fig. 4

A Maximum likelihood analysis of concatenated nucleotide N- and C- terminal regions of spidroins involved in capture thread construction. Tree is rooted on cribellar spidroins. Species names are abbreviated as in Fig. 1. Bootstrap percentages (BT) ≥ 50% are shown. Each spidroin is colored based on the silk gland where it is likely expressed: flagelliform (purple), pseudoflagelliform (blue), aggregate (yellow), cribellar (brown), paracribellar (green). Inferred gene duplications are shown as red circles above each branch for those supported by > 50% BT. Symbols show familial association as follow: Uloboridae (star), Deinopidae (triangle), Desidae (square), Zoropsidae (hexagon), Eresidae (diamond), Theridiidae (oval), and Araneidae (pentagon). B Schematic of the spinnerets of a cribellate spider showing the cribellum, the anterior lateral spinnerets (ALS), posterior median spinnerets (PMS), and posterior lateral spinnerets (PLS). C Spigot morphology information for silks involved in capture thread construction showing on which spinneret the spigots are located. Spigots are colored as in part A: flagelliform spigot (purple), pseudoflagelliform/modified spigot (blue), aggregate spigots (yellow), cribellar spigots (brown), and paracribellar spigots (green). See Additional file 3: Table S4 for spidroin sequence information. Spider phylogeny is based on [67]

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