B. N. Singh
Articles written in Journal of Genetics
Volume 84 Issue 2 August 2005 pp 195-216 Review Article
Behaviour genetics of
The analysis of genetic behaviour within and between species provides important clues about the forces shaping the evolution of behavioural genes. Genes can affect natural behavioural variation in different ways. Allelic variation causes alternative behavioural phenotypes, whereas changes in gene expression can influence the initiation of behaviour at different ages. Identifying the genes involved in polygenic traits has been difficult. Chromosomal analysis has been widely used as a first step in elucidating the genetic architecture of several behaviours of
Volume 93 Issue 2 August 2014 pp 495-499 Research Note
Volume 94 Issue 4 December 2015 pp 785-792 Review Article
Status of research on
Volume 96 Issue 6 December 2017 pp 1053-1059 REVIEW ARTICLE
Drosophila pallidosa belongs to the D. ananassae complex, which includes a total of 10 species. Earlier D. pallidosa was known as light form of D. ananassae but later it was described as a new species, sibling of D. ananassae. Both these terms, light form and sibling species were used by Futch. This makes the taxonomic status of D. pallidosa confusing. In this review we have tried tounderstand the actual status of this sibling species pair. Considering the similarities and dissimilarities, we suggest that D. pallidosa does not have the full status of a species, rather it is in the process of speciation, statu-nascendi. Our suggestion is strengthened by the fact that male genitalia are identical in both the cases and they lack postmating reproductive isolation since hybrids between them are normal and fully fertile.
Volume 101, 2022
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