Introduction of Australian Diploid Cotton Genetic Variation into Upland Cotton

Introgression of cotton leaf curl virus-resistant genes from Asiatic cotton (Gossypium arboreum) into upland cotton (G. hirsutum).

Cotton is under the constant threat of leaf curl virus, which is a major constraint for successful production of cotton in the Pakistan. A total of 3338 cotton genotypes belonging to different research stations were screened, but none were found to be resistant against the Burewala strain of cotton leaf curl virus (CLCuV). We explored the possibility of transferring virus-resistant genes f...

Genetic Studies of Fiber Quality Characters in Upland Cotton

Five upland cotton cultivars were crossed in a complete diallel crossing system to investigate inheritance pattern and combining ability of parents for different fiber quality traits like staple length, fiber strength, fineness and uniformity. The study was carried out in the Department of Plant Breeding and Genetics, University of Agriculture, Faisalabad during the years 2005-07. Highly signif...

Comparative genetic mapping of allotetraploid cotton and its diploid progenitors

Allotetraploid cotton species (Gossypium) belong to a 1–2 million year old lineage that reunited diploid genomes that diverged from each other 5–10 million years ago. To characterize genome evolution in the diploids and allotetraploids, comparative RFLP mapping was used to construct genetic maps for the allotetraploids (AD genome; n = 26) and diploids (A and D genomes; n = 13). Comparisons amon...

Australian Cotton Germplasm Resources

A Hairy Anther Mutant Isolated in Interspecific Hybrids between Upland Cotton and Pima Cotton

Plant hairs (trichomes) including cotton fiber develop from single epidermal cells on the aerial surfaces of plants. Two main types of trichomes, glandular and nonglandular, can be found playing various functions including protection from insect damage. The development of plant trichomes provides an excellent system for studies of cell developmental biology. Because they are easily observable, ...