Research Article

Related GMR Articles

08/11/2006
Apomixis; Interspecific crosses; Polyploidy

A new species was synthesized artificially by chromosome doubling in a hybrid. The ensuing polyploid type exhibits an apomictic nature and maintains its morphological characteristics in the progeny. It showed a frequency of multiembryonic sacs of 29% in the ovules examined, whereas sacs were absent in the diploid type.

*In honor of deceased Professor Vieira who dedicated a part ... more

N.M.A. Nassar
07/28/2009
Drosophila melanogaster; Drosophila simulans; Interspecific crosses; Wolbachia

Wolbachia are bacteria that live inside the cells of a large number of invertebrate hosts and are transmitted from infected females to their offspring. Their presence is associated with cytoplasmic incompatibility in several species of Drosophila. Cytoplasmic incompatibility results when the sperm of infected males fertilize eggs of uninfected females, causing more or ... more

I.N. Gazla; M.C. Carracedo
01/26/2010
Interspecific crosses; Manihot; Marker genes; Wild cassava species

Cross incompatibility of wild Manihot species with cassava (M. esculenta) can impede their utilization for improving this cultigen. We tested whether compatibility could be determined based on electrophoresis results. Manihot pilosa, M. glaziovii, M. reptans, and M. cearulescens were tested. These species were allowed to hybridize with ... more

N.M.A. Nassar; N. Bomfim; A. Chaib; L.F.A. Abreu; P.T.C. Gomes
07/29/2016
AP2/ERF superfamily; Biological evolution; Collinearity; Gossypium arboreum; Gossypium raimondii; Phylogeny

The APETALA2/ethylene response factor (AP2/ERF) transcription factor superfamily is known to regulate diverse processes of plant development and stress responses. We conducted a genome-wide analysis of the AP2/ERF gene in Gossypium arboreum and G. raimondii. Using RPSBLAST and HMMsearch, a total of 271 and 269 AP2/ERF genes were identified in the G ... more

Z.P. Lei; D.H. He; H.Y. Xing; B.S. Tang; B.X. Lu; Z.P. Lei; D.H. He; H.Y. Xing; B.S. Tang; B.X. Lu
07/22/2011
EST-SSRs; Genetic diversity; Genomic-SSRs; Gossypium hirsutum

Estimations of genetic diversity and of relationships between varieties are crucial for cotton breeding. The genetic diversity of 59 core cotton cultivars, most of which were collected from China’s main cotton-growing areas, was analyzed based on genomic and newly developed expressed sequence tag-derived microsatellite markers, using total DNA extracted from fresh leaf tissue. Three ... more

Y. Zhang; X.F. Wang; Z.K. Li; G.Y. Zhang; Z.Y. Ma
02/08/2011
Association; Fiber; Gossypium hirsutum; SSR

Cotton is the most important textile plant in the world and is one of the most important crops for the production of oilseed. Because of its worldwide economic importance, new cultivars are constantly being released in the world and consequently in the Greek market, as Greece is the largest producer in Europe. We used simple sequence repeat (SSR) markers for the identification and the ... more

A. Kalivas; F. Xanthopoulos; O. Kehagia; A.S. Tsaftaris
02/21/2014
Cotton leaf curl virus resistance; Cytogenetics; Gene introgression; Gossypium hirsutum; Gossypium stocksii

Cotton leaf curl virus disease is a major hurdle for successful cotton production in Pakistan. There has been considerable economic loss due to this disease during the last decade. It would be desirable to have cotton varieties resistant to this disease. We explored the possibility of transferring virus resistant genes from the wild species Gossypium stocksii into MNH-786, a ... more

W. Nazeer; S. Ahmad; K. Mahmood; A.L. Tipu; A. Mahmood; B. Zhou