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Genetic base and relatedness of Indian early maturing potato (Solanum tuberosum) selections

  • R. KUMAR (a1), G. S. KANG (a1), S. K. PANDEY (a2) and J. GOPAL (a2)

Summary

Pedigree analysis was used to study the genetic background of 66 Indian early maturing potato selections, the pedigree of which was traced back to 35 ancestors. Six of the 35 contributed 0·42 of the genetic base, which shows the narrow genetic base of Indian early maturing genotypes. Genotypes 2814 (a)1 (f=0·145) and 3069 (d)4 (f=0·145) were the ancestors which appeared most frequently. Based on the coefficient of relationship, the 66 selections were grouped into seven groups with one common ancestor in almost all the selections within a group. The genotypes Kufri Ashoka, Kufri Pukhraj, AGB-69-1, Kufri Jyoti, Kufri Alankar, Kufri Lauvkar and Kufri Kuber were identified as very important parents/ancestors, carrying specific gene complexes valuable in new selections. Crosses between selections from different diversity groups can result in the selection of useful clones while increasing or maintaining genetic diversity, which is desirable to ensure sustainable breeding progress in the future.

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*To whom all correspondence should be addressed. Email: rajcprs@hotmail.com; rajcprs@rediffmail.com

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Genetic base and relatedness of Indian early maturing potato (Solanum tuberosum) selections

  • R. KUMAR (a1), G. S. KANG (a1), S. K. PANDEY (a2) and J. GOPAL (a2)

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