
Authors: M.X. Vila Nova , N.G.A. Leite , L.M. Houllo , L.V. Medeiros, A.C. Lira Neto , B.S. Hsie1, L.R. Borges-Paluch , B.S. Santos, C.S.F. Araujo, A.A. Rocha and A.F. Costa
The cowpea weevil (Callosobruchus maculatus Fabr.) is the most destructive pest of the cowpea bean; it reduces seed quality. To control this pest, resistance testing combined with genetic analysis using molecular markers has been widely applied in research. Among the markers that show reliable results, the inter-simple sequenc.. Read More»
Authors: L. Zhang, R.X. Liu, J. Wang, T. Zhang, J. Li, J.H. Shi, B.Y. Kang and S.Q. Chen
The aims of this study were to establish a random amplified polymorphic DNA (RAPD) fingerprint database of chloroplast DNA (cpDNA) from different cultivars of Cornus officinalis and to convert RAPD markers to sequence characterized amplified regions (SCAR) markers. A method of extraction was established that was suitable for obtaining cpDNA from samples r.. Read More»
Authors: J.A.N. Menezes J�ºnior, J.E.S. Carneiro, V.M.P.S. Menezes and P.C.S. Carneiro
This study evaluated the performance and estimated the genetic potential of segregating populations of red bean. Twenty populations of the second cycle of recurrent selection for red bean breeding at Universidade Federal de Viçosa were advanced to the F5 generation in bulk with selection for grain appearance. Population.. Read More»
Authors: Z.L. Xu, Z. Ali, J.X. Yi, X.L. He, D.Y. Zhang, G.H. Yu, A.A. Khan, I.A. Khan and H.X. Ma
Salicornia spp is one of the most salt-tolerant vascular plants and is native to salt marshes and estuaries. We developed expressed sequence tag derived-simple sequence repeat (EST-SSR) markers for estimating genetic diversity and marker-assisted Salicornia breeding. Six polymorphic EST-SSRs of 40 detected 27 alleles, ranging .. Read More»
Authors: C.P. Yuan, Y.J. Wang, H.K. Zhao, L. Zhang, Y.M. Wang, X.D. Liu, X.F. Zhong and Y.S. Dong
Over-utilization of germplasms that are resistant to the soybean cyst nematode (SCN) in soybean breeding programs can lead to genetic vulnerability in resistant cultivars. Resistant wild soybean (Glycine soja) is considered an invaluable gene source for increasing the genetic diversity of SCN resistance. In this study, we geno.. Read More»
Authors: A.A. Lima, S.A. S�¡gio, A. Chalfun-J�ºnior and L.V. Paiva
The plant hormone ethylene is involved in several developmental and physiological processes in plants, including senescence, fruit ripening and organ abscission, as well as in biotic and abiotic stress responses. Initiation of these processes involves complex regulation of both ethylene biosynthesis and the ability of cells to.. Read More»
Authors: S.C. Soares, F.A. Dorella, L.G.C. Pacheco, R. Hirata Jr., A.L. Mattos-Guaraldi, V. Azevedo and A. Miyoshi
Despite the existence of a vaccine against diphtheria, this disease remains endemic and is reemerging in several regions due to many factors, including variations in genes coding for virulence factors. One common feature of virulence factors is their high concentration in pathogenicity islands (PAIs), very unstable regions acq.. Read More»
Authors: X. Sui,F.J. Feng,D. Zhao,M. Xing,X.Y. Sun,S.J. Han and M.H. Li
To understand the genetic mechanisms underlying the endangerment of Pinus koraiensis, we studied the mating system of 49 families of this species in 3 natural populations along its post-glacial colonization route across ~1500 km in northeastern China using the chloroplast simple sequence repeat technique. We analyzed 11 polymorphic loci with clear and rep.. Read More»
Authors: L.S. Coelho, L.P. Felicio, C.T. Miranda, E.M. da Silva, C.R. Vale, D.C.S. Lima, S.R. Duarte, H.D. Ferreira, L. Chen Chen and S. Carvalho
Mutagenic and antimutagenic activities of the medicinal plant Duguetia furfuracea were assessed using SMART/wing and ring-X-loss tests. For the ring-X-loss test, 2- to 3-day-old Drosophila melanogaster ring-X-lineage males and virgin ywsn3 females received D. furfuracea infusion at doses of 0.085, 0.042, or 0.014 g/mL for 24 h.. Read More»
Authors: L.D.H.C.S. Concei�§�£o, G.O. Belo, M.M. Souza, S.F. Santos, C.B.M. Cerqueira-Silva and R.X. Corr�ªa
Several interspecific Passiflora hybrids are produced in the northern hemisphere for the ornamental plant market. In Brazil, production of passion flower hybrids is limited to the introgression of genes into the main cultivated species, yellow passion fruit, to be used as rootstocks. Confirmation of hybridization in the initia.. Read More»