GENETIC DIVERSITY ANALYSIS OF GINGER GERMPLASM OF SOUTH RAJASTHAN THROUGH SCoT AND ISSR PRIMERS.

Autor: VYAS, PALLAVI, FARODA, PRIYANKA, GUPTA, AMIT KUMAR, SHARMA, KULDEEP, HARISH
Zdroj: Journal of Phytological Research; 2023, Vol. 36 Issue 2, p39-49, 11p
Abstrakt: Ginger (Zingiber officinale) is a well-known spice herb showing antiinflammatorv, antitumour, antioxidant, antiapoptotic, cvtotoxic and antiproliferative activities due to the occurrence of a diverse range of phvtochemicals. Ginger is dominantlv cultivated in manv districts of South Rajasthan due to favourable climatic and soil conditions but the vield is verv low as the crop is highlv susceptible to various bacterial and fungal diseases. The unavailabilitv of resistant ginger varieties resulted in a sharp decline in ginger cultivation. Genetic diversitv analvsis is desirable to develop improved varieties of ginger showing resistance against biotic and abiotic stress. The present paper reports the assessment of genetic diversitv among 30 ginger genotvpes from South Rajasthan through SCoT and ISSR markers. An overall 62.93% polvmorphism was reported bv the combined use of SCoT and ISSR markers and SCoT markers performed better in terms of the number of amplification products (168 bands) and a higher degree of polvmorphism (74.39%). Cluster analvsis confirmed that genotvpes which were collected from a similar geographical area are geneticallv similar and diversitv arose due to a slight change in geographical location. Population genetic analvsis revealed that members of the DOD population showed the highest genetic diversitv while AMI and SAV populations are closelv related. The present paper proved the potential of SCoT markers for the evaluation of genetic diversitv in other ginger accessions as well as for the identification of positive traits for varietal improvement. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index