Skip to main content
Fig. 3 | BMC Ecology and Evolution

Fig. 3

From: Evolutionary pattern of karyotypes and meiosis in pholcid spiders (Araneae: Pholcidae): implications for reconstructing chromosome evolution of araneomorph spiders

Fig. 3

Arteminae, males, detection of NORs (FISH). Arrowhead = NOR-bearing chromosome (a, c, d) or bivalent (b), asterisk = centromere, open arrowhead = sex chrosomosome-linked NOR, X = X chromosome. a Artema nephilit (X1X2Y), plate formed by fused sister metaphases II. Pair of chromosomes bears a terminal NOR. Inset: submetacentric NOR-bearing chromosome. NOR is placed at the end of short arm; b, c Holocneminus sp. (X0). b Metaphase I, one bivalent contains NOR; c Mitotic metaphase. Chromosomes of one metacentric pair have terminal NOR; d Physocyclus dugesi (X0), two sister plates, late metaphase II. Chromosomes of one metacentric/submetacentric pair contain a terminal NOR. X chromosome is more condensed than the other chromosomes. It includes tiny NOR at both ends. Bar = 5 µm, inset 1 µm

Back to article page

BMC Ecology and Evolution

ISSN: 2730-7182

Contact us