Wild species

Comparative petiole anatomy of cassava (Manihot) species

D. Graciano-Ribeiro, Hashimoto-Freitas, D. Y., Nassar, N. M. A., Graciano-Ribeiro, D., Hashimoto-Freitas, D. Y., Nassar, N. M. A., Graciano-Ribeiro, D., Hashimoto-Freitas, D. Y., and Nassar, N. M. A., Comparative petiole anatomy of cassava (Manihot) species, vol. 15, p. -, 2016.

In this study, we describe the petiole anatomy of six wild cassava (Manihot) species, one hybrid, and two cultivars of Manihot esculenta, in order to identify their dominant anatomical patterns and relate them to possible adaptations to abiotic factors in the Cerrado biome. The median parts of several petiole samples were transversally and longitudinally sectioned and stained.

New hybrids from peanut (Arachis hypogaea L.) and synthetic amphidiploid crosses show promise in increasing pest and disease tolerance

A. P. Fávero, Pádua, J. G., Costa, T. S., Gimenes, M. A., Godoy, I. J., Moretzsohn, M. C., and Michelotto, M. D., New hybrids from peanut (Arachis hypogaea L.) and synthetic amphidiploid crosses show promise in increasing pest and disease tolerance, vol. 14, pp. 16694-16703, 2015.

The primary gene pool of the cultivated peanut (Arachis hypogaea L., allotetraploid AABB) is very narrow for some important characteristics, such as resistance to pests and diseases. However, the Arachis wild diploid species, particularly those from the section Arachis, still have these characteristics. To improve peanut crops, genes from the wild species can be introgressed by backcrossing the hybrids with A. hypogaea.

Crossability of Arachis valida and B genome Arachis species

D. C. Wondracek-Lüdke, Custodio, A. R., Simpson, C. E., and Valls, J. F. M., Crossability of Arachis valida and B genome Arachis species, vol. 14, pp. 17574-17586, 2015.

The peanut (Arachis hypogaea) is an important food crop in much of the tropical and semi-tropical parts of the world. The peanut is an allotetraploid with an AABB genome formula derived from diploids A. duranensis (A genome) and A. ipaënsis (B genome). The success of an introgression program that aims to improve cultivated varieties of the peanut depends on whether the chosen B genome species is homologous with the B genome of the peanut.

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