Although tomato psyllid, Bactericera cockerelli (Sulc) (Homoptera, Psyllidae), annually causes significant losses in potato and tomato crops in eastern Mexico and the central United States, infestations in western North America have been historically rare. However, substantial populations appeared in 2001 in western North America and caused losses in tomato production exceeding 80%; losses in 2...

Abstract Background Euphorbia is the largest genus in family Euphorbiaceae with a great biological and genetic diversity. The anti-trypanosomal activity of crude extract 15 species against Trypanosoma brucei was carried out. Furthermore, DNA fingerprinting tested using ISSR SCoT markers also investigated. Results revealed highest E. officinarum L. milli Des Moul. IC 50 values < 10 ?g/mL afte...

Andean tuber crop species oca (Oxalis tuberosa Molina), ulluco (Ullucus tuberosus Caldas), and mashua (Tropaeolum tuberosum Ruiz & Pav.) play major roles in Andean communities. These species show high variability but are threatened with genetic erosion. To study the management of genetic resources of neglected vegetatively propagated crop species, we studied genetic diversity and structure of t...

Castor (Ricinus communis L.) is one of the most ancient medicinal oil crops in the world. It has been vastly distributed in different parts of Iran. In the present study, the inter simple sequence repeat (ISSR) markers were used to evaluate the molecular genetic diversity among and within 12 castor accessions collected from 7 regions of Iran. Totally, 16 ISSR primers amplified 166 loci...

The nutritive value of alsike clover (Trifolium hybridum L.) is slightly lower than that of red and white clovers; however, it exhibits some advantages – persists longer in a sward, performs well on acid and wet soils, suits for forage and silage production, can be used as green manure, and is a melliferous plant. With declining liming volumes, the soils are rapidly acidifying, which may result...

Cinchona officinalis is an important species from the Andean cloud forest that has a low regeneration rate in natural populations. In vitro of C. been successfully established but somaclonal variation was not evaluated. The pathway and number subcultures on were evaluated using six ISSR primers amplified 58 loci Inter Simple Sequence Repeats (ISSR). A dendrogram based Jaccard´s genetic distance...

A mandioca (Manihot esculenta) é amplamente distribuída no Brasil, nas roças encontram-se plantas com características diferentes que são mantidas e propagadas entre os agricultores. Levando em consideração a diversidade de etnovariedades encontrada, esse trabalho teve como objetivo realizar caracterização molecular cultivadas município Paranaíta - MT, utilizando primers ISSR. O material foliar ...