Cytogenetical characterization of six orb-weaver species and review of cytogenetical data for Araneidae

Cytogenetical Analysis of Iranian Wild Almond Species

In this study, the karyo-systematic studies on the Iranian wild almond species A .communis L., A. corduchoruom Bornm., A. trichamygdalus woronow, Amygdalus lycioides Var. horrida Spach were done by the karyological methods. The meristem cells of the root tip were used for these studies. In each species, ten suitable metaphase plates were chosen and photographed so that the morphology of the chr...

Two new species of the orb-weaver genus Chorizopes from Yunnan, China (Araneae, Araneidae)

Two new species of the orb-weaver genus Chorizopes from Yunnan Province, China are described: Chorizopes albussp. n. (male and female) from the Gaoligong Mountains and Ailao Mountains, and Chorizopes longussp. n. (male and female) from the Gaoligong Mountains. Chorizopes albussp. n. can be distinguished from the related species Chorizopes shimenensis by: 1) median apophysis widest at the middle...

Cytogenetical studies on swine intersexes.

Cytogenetical studies in five Atlantic Anguilliformes fishes

The order Anguilliformes comprises 15 families, 141 genera and 791 fish species. Eight families had at least one karyotyped species, with a prevalence of 2n = 38 chromosomes and high fundamental numbers (FN). The only exception to this pattern is the family Muraenidae, in which the eight species analyzed presented 2n = 42 chromosomes. Despite of the large number of Anguilliformes species, karyo...

Cytogenetical and histochemical studies on curcumin in male rats

Curcumin is a major component of the curcuma species, commonly used as a yellow coloring and flavoring agent in foods. Curcumin has been demonstrated to have potent antioxidant, anti-inflammatory activity and has shown anticancer properties in many rodent models. There is the perception that since compounds are natural, they are devoid of toxicity and safe to use. Some of the active compounds i...