There are two very interesting aspects to the evolution of sex chromosomes: what happens after recombination between these chromosome pairs stops and why suppressed recombination evolves. The former question has been intensively studied in a diversity of organisms, but the latter has been studied largely theoretically. To obtain empirical data, we used codominant genic markers in genetic mappin...

Nigerian forest resources are constantly threatened due to many anthropogenic activities and considering their importance in recycling oxygen, preventing erosion, biodiversity habitats etc. This study was carried out determine the diversity population status of trees. A 50km2 plot studied using line transect method, Point Centered Quartet technique deployed enumerate standing tree biomass. Tota...

Antianthelmintic activity of successive extracts (chloroform, acetone, ethanol and aqueous) of Nauclea orientalis leaves were evaluated separately on adult Indian earthworm (Pheretima posthuma) and compared with that of albendazole. It was found that the extracts exhibited, respectively dose-dependent action and inhibition of spontaneous motility (paralysis) and death of earthworms. The results...

Here we introduce a new model species, Silene colpophylla, that could facilitate research of sex chromosome evolution and sex-determining systems. This species is related to the well-established dioecious plant model Silene latifolia. Our results show that S. colpophylla is, similarly to S. latifolia, a male heterogametic species, but its sex chromosomes have evolved from a different pair of au...

Ethnopharmacological relevance: Although traditional antimalarial plant remedies in herbal markets are a very important component of the health care system in Ghana this has not been previously studied to allow for the formulation of effective strategy for malaria control in Ghana. Aim of study: The main objective of the present study was to collect and analyse data on the antimalarial plant re...

Quinazolinocarboline rutaecarpine and evodiamine (Evodia rutaecarpa) are main alkaloid components of traditional Chinese folk-remedies. Evodiamine exhibited selective antitumor and antimetastatic effects on several cancer cell lines and became lead structure of anticancer agents. During our synthetic research we achieved to gain alkaloid hybrid derivatives by combining the structural elements o...