Molecular breeding in cotton - Icrisat
Molecular breeding in cotton - Icrisat
Molecular breeding in cotton - Icrisat
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Genetic Resources<br />
• The genus Gossypium comprises of 50 species, among them 5<br />
are tetraploids and 45 are diploids.<br />
• India is the only country <strong>in</strong> the world grow<strong>in</strong>g all the four<br />
cultivated species of <strong>cotton</strong> (two diploids- G. arboreum and G.<br />
herbaceum; and two tetraploid- G. hirsutum and G.<br />
barbadense) and successfully exploit<strong>in</strong>g heterosis through<br />
cultivation of <strong>in</strong>tra and <strong>in</strong>terspecific hybrids.<br />
• India ma<strong>in</strong>ta<strong>in</strong>s large germplasm collection, at present<br />
germplasm accessions hold<strong>in</strong>g stand at more than 10,000,<br />
second largest, just next to the germplasm collection of USA<br />
• The available land races, wild species are under utilized and are<br />
good source for fibre quality such as strength; resistance to<br />
<strong>in</strong>sect pests and diseases.
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