Genetic Diversity in Gossypium genus

Introductory Chapter: Updates on Achieving Sustainable Cotton Production

“…Also, the cultivation of Bt cotton was found safe for the nontargets. At the moment, cotton is cultivated on >30 million hectares in 80 different countries of the world [7,8]. World cotton average yield is fluctuating over the last 3 years, and significant reduction (~9% in 2015-2016 than that of [2014][2015] in yield was observed [9].…”

Introductory Chapter: Introduction to Cotton Research Highlights

“…Further, molecular marker technology has helped to establish and genetically differentiate 13 homeologous chromosome pairs accelerating cotton cytogenetics and genetics studies [29]. Detailed cytogenetic studies and the characterization of aneuploidy and translocation lines identified almost all 26 chromosomes of allotetraploid cottons and provided an innovative way of replacing the G. hirsutum (referred to as Upland cotton [8]) chromosome pairs with corresponding chromosome pairs of other cultivated and wild allotetraploids such as G. barbadense, G. mustelinum, and G. tomentosum. This effort created unique sets of chromosome substitution backcross (CS-B) cotton germplasm resources of Upland cottons that are widely used as a novel direction in cotton improvement, supplementing and enhancing conventional cotton breeding programs worldwide [30,31].…”

“…This has not only accelerated the development of superior cotton cultivars with reduced cost and time, but it also helped in widening the "conventionally-narrow" genetic base of novel cultivars via introducing 'yet-unexploited' genetic diversities from cotton germplasm resources [8,14,[20][21][22][23]28]. Further, molecular marker technology has helped to establish and genetically differentiate 13 homeologous chromosome pairs accelerating cotton cytogenetics and genetics studies [29].…”

“…Cotton is grown on around 32-36 million-hectares area of tropical and northernmost agricultural latitudes in over 80 countries of the world [8,9] to fulfill the current global needs of humanity for the natural fiber. For the past decade, however, global cotton production, demand, and market significantly fluctuated that caused a pressure on farmers, consumers, and traders.…”

“…conventionally longstanding problems of simultaneous yield and quality improvements in cotton [3,8].…”