Indian scenario on the occurrence of a dreaded insect pest Pink bollworm, Pectinophora gossypiella on Bt cotton-A review

The pink bollworm, Pectinophora gossypiella, has become a significant production constraint on Bt cotton in India. This problem is unique to India because the pest has developed multi-fold resistance to Cry toxins in many Indian populations but not in other countries. Most Indian populations have developed multifold resistance to Cry 1 Ac and Cry 1Ac + Cry 2 Ab toxins. Year-round cultivation of long-duration Bt cotton hybrids on a large scale has a pronounced impact on the incidence. Also discussed other factors responsible for the occurrence of pink bollworm on Bt cotton in India. Insecticide Resistance Management (IRM) strategies implemented by different cotton-growing countries globally; the USA, India, and China had a significant impact on the interaction of pink bollworm on Bt cotton. Huge selection pressure resulted in resistance to Cry toxins. Time-tested IPM, if implemented on a community basis focusing on pheromones technology and closed season, will help sustain the cotton cultivation in India in the future. Thus, this review aims to congregate exhaustive information on the history, biology, resistance to Bt cotton, and Integrated Management (IPM) options for the Indian scenario, which would help researchers in their future endeavors.

Genetics Landscape of Nonsyndromic Hearing Loss in Indian Populations

Congenital nonsyndromic hearing loss (NSHL) has been considered as one of the most prevalent chronic disorder in children. It affects the physical and mental conditions of a large children population worldwide. Because of the genetic heterogeneity, the identification of target gene is very challenging. However, gap junction β-2 (GJB2) is taken as the key gene for hearing loss, as its involvement has been reported frequently in NSHL cases. This study aimed to identify the association of GJB2 mutants in different Indian populations based on published studies in Indian population. This will provide clear genetic fundamental of NSHL in Indian biogeography, which would be helpful in the diagnosis process.

From the Subcontinent with Love

“Africa weaves a magic spell around even a temporary visitor,” wrote the former Indian high commissioner to East and Central Africa, Apa Pant, in 1987, echoing the allure that the continent had over him and other fellow Indian diplomats. But the diplomatic roles of men like Pant and the history of Indian engagement with Rhodesia has not, until now, been explored. This article argues that the central role of India in the colonial world ensured that London reined in the white settler Rhodesian government from enacting discriminatory legislation against its minority Indian populations. After Indian independence in 1947, the postcolonial government shifted from advocating specifically for the rights of Indians overseas to ideological support for the independence of oppressed peoples across the British colonial world, a mission with which it tasked its diplomatic representatives. But after India left its post in Salisbury in 1965, Indian public rhetorical support for African nationalist movements in Rhodesia was not matched by its private support for British settlement plans that were largely opposed by the leading African political parties in the country, colored by private patronizing attitudes by India's representatives toward African nationalists and the assumption that they were not yet ready to govern themselves.

Estimating the death toll of the Covid-19 pandemic in India

The absence of reliable registration of Covid-19 deaths in India has prevented the proper assessment and monitoring of what appears to be one of the worst episodes of coronavirus pandemic. India's relatively young age structure tends to conceal the severity of Covid-19 mortality, which is concentrated in older age groups. In this paper, we present four different demographic samples of Indian populations for which we have information on both their demographic structures and death outcomes. We show that we can model the age gradient of Covid-19 mortality in India and use this modeling for estimating the most accurate level of Covid-19 mortality in the country. Our findings point to a death toll of about 2.2 million persons by late May 2021. Once India's age structure taken into account, these figures correspond to one of the most severe examples of Covid-19 mortality in the world.