I used conventional methods of
polytene chromosome analysis (Shields and Procunier, 1982; Shields, 2013) to determine the sex chromosome constitution of larvae of the S.
It was not possible for us to utilize the first and second instar larval stages for species identification, as they are small, present deep inside the food and their
polytene chromosome preparations are not very good.
Polytene chromosome preparations were made from salivary glands of third-instar larvae.
Apart from the study of
polytene chromosome characteristics, the usefulness of mosquito cytogenetics is mainly to provide a basis for biochemical and molecular investigations.
DNA amplifications, chromatin variations, and
polytene chromosomes in differentiating cell of common bread wheat in vitro and root of regenerated plants in vivo.
For example, both chapters on ISH to
polytene chromosomes are nearly the same as in the first edition, down to the illustrations and references, and both cover similar material.
dRan is probably in
polytene chromosome band 10A7-9.
Out of Texas, thanks to Theophilus Painter, came the discovery of the giant
polytene chromosomes in the larval salivary glands, from which grew a huge field of research in population genetics, owing to the fact that about half of all species of Drosophila have polymorphic inversions in at least one chromosome.
Polytene Bags and Sheets 128 Cherat Paper Sack Limited Paper Bags 129 Mehran Comforts (Pvt) Ltd.
He said overflowing gutters are usually consequent to collection of
polytene bags at the mouth of the gutter lines preventing flow of waste water into major channels and sea.
Black flies (Diptera: Simuliidae) provide an interesting case study of the role that chromosome change may play in the diversification process because the morphospecies of classical taxonomy almost always reveals itself as any number of sibling species when
polytene chromosomes of larval salivary glands are analyzed (Rothfels, 1988).