Creation and validation of core subset of potato (Solanum tuberosum) germplasm
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Keywords:
Core subset, Potato, Shannon-Weaver diversity indexAbstract
Potato (Solanum tuberosum L.) is the only non-cereal staple food crop globally. The progress of this temperate crop in the sub-tropical country relies strongly on improvement activities utilizing the genetic resources acquired over a time period. However, proper maintenance, evaluation and utilization of germplasm resources is a cumbersome task. Creation of core set of conserved genetic resources is an efficient and cost effective method of management of conserved germplasm and its use in breeding program. Indian collection of potato (Solanum tuberosum ssp tuberosum) constitutes 1399 accessions emanating from the five continents maintained under ex situ conservation. A core subset of 140 potato germplasm was developed using Power Core software based on 19 morphological traits. Majority of entries in the core subset were from South America (42.14%). Comparison of mean data using Newman-Keul's test and variances using Levene's test for different traits revealed representation of actual diversity of base population by the core subset. Correlations among the traits governed by co-adapted gene complexes were conserved in the core subset. Shannon-Weaver diversity indices indicate that the potato core subset maximized the phenotypic diversity of the potato germplasm. Validation of core subset using principal component analysis reveals that the first 4 PCs represents 55.27% of total variations in core subset compared to 52.50% that in entire collection. The identified core subset can be used in Indian potato improvement programs as well as in genomics studies.Downloads
References
Bamberg J and del Rio A.2014. Selection and validation of an AFLP marker core collection for the wild potato Solanum microdontum. American Journal of Potato Research 91: 368–75. DOI: https://doi.org/10.1007/s12230-013-9357-5
Brown AHD 1989. Core collections: a practical approach to genetic resources management. Genome 31(2): 818–24. DOI: https://doi.org/10.1139/g89-144
Gangopadhyay K K, Mahajan R K, Kumar G, Yadav S K, Meena B L, Pandey C and Bisht I S. 2010. Development of a core set in brinjal. Crop Science 50: 755–62. DOI: https://doi.org/10.2135/cropsci2009.03.0151
Gopal J and Oyama K. 2005.Genetic base of Indian potato selections as revealed by pedigree analysis. Euphytica 142: 23–31. DOI: https://doi.org/10.1007/s10681-005-0448-3
Gopal J, Kumar V, Kumar R and Mathur P. 2013. Comparison of different approaches to establish a core collection of andigena (Solanum tuberosum group andigena) potatoes. Potato Research 56: 85–98. DOI: https://doi.org/10.1007/s11540-013-9232-2
Huaman Z, Ortiz R and Gomez R. 2000. Selecting aS. tuberosum sub sp. andigena core collection using morphological, geographical, disease and pest descriptors.American Journal of Potato Research 77: 183–90. DOI: https://doi.org/10.1007/BF02853943
Keuls M. 1952. The use of the “Studentized range” in connection with an analysis of variance. Euphytica 1: 112–22. DOI: https://doi.org/10.1007/BF01908269
Kim K W, Chung H K, Cho G T, Ma K H,Chandrabalan D, Gwag J G, Kim T S, Cho E G and Park Y J. 2007. PowerCore: a program applying the advanced M strategy witha heuristic search for establishing core sets. Bioinformatics 23: 2155–62. DOI: https://doi.org/10.1093/bioinformatics/btm313
Kumar R, Gopal J and Pandey S K. 2012.Genetic improvement for yield and tuber size in Andigena potatoes (Solanum tuberosum sub sp andigena) after one cycle of recurrent selection.Indian Journal of Agricultural Sciences 82(10): 885–8.
Newman D. 1939. The distribution of range in samples from a normal population expressed in terms of an independent estimate of standard deviation. Biometrika 31: 20–30. DOI: https://doi.org/10.1093/biomet/31.1-2.20
Plaisted R L and Hoopes R W. 1989. The past record and future prospects for the use of exotic potato germplasm. American Potato Journal 66: 603–27. DOI: https://doi.org/10.1007/BF02853982
Rana R K and Anwer M D E.2018. Potato production scenario and analysis of its total factor productivity in India. Indian Journal of Agricultural Sciences 88 (9): 1354–61.
Shannon C E and Weaver W. 1949. The mathematical theory of comunication. University of Illinois Press, Urbana.
Skinner D Z, Bauchan G R, Auricht G and Hughes S.1999. A method for the efficient management and utilization of large germplasm collections. Crop Science 39: 1237–42. DOI: https://doi.org/10.2135/cropsci1999.0011183X003900040046x
Wang Y, Rashid MAR, Li X, Yao C, Lu L, Bai J, Li Y, Xu N, Yang Q, Zhang L, Bryan GJ, Sui Q and Pan Z. 2019. Collection and evaluation of genetic diversity and population structure of potato landraces and varieties in China. Frontiers in Plant Sciences 10: 139. DOI: https://doi.org/10.3389/fpls.2019.00139
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