Genetic divergence analysis of bougainvillea (Bougainvillea spp) cultivars using morphological markers

P PAVAN KUMAR; T JANAKIRAM; K V BHAT; K V PRASAD; RITU JAIN

doi:10.56093/ijas.v85i5.48500

Authors

P PAVAN KUMAR Ph D Scholar, Indian Agricultural Research Institute, New Delhi 110 012
T JANAKIRAM Assistant Director General-I (Hort. Sci.), Krishi Anusandhan Bhavan-II, ICAR, New Delhi 110 012
K V BHAT Head and Principal Scientist, Division of Genomic Resources, National Bureau of Plant Genetic Resources, New Delhi 110 012
K V PRASAD Professor and Principal Scientist, Indian Agricultural Research Institute, New Delhi 110 012
RITU JAIN Scientist, Division of Floriculture and Landscaping, ICAR-Indian Agricultural Research Institute, New Delhi 110 012

https://doi.org/10.56093/ijas.v85i5.48500

Keywords:

Bougainvillea, Genetic diversity, Morphological markers

Abstract

A study was undertaken to analyze diversity among the bougainvillea (Bougainvillea spp.) cultivars using morphological markers. A total of 38 morphological descriptors of UPOV guidelines were recorded for hundred bougainvillea cultivars. Significant amount of variation was observed for all the descriptors, indicating that many of the cultivars were documented to be superior. The Neibour Joining (NJ) dendrogram based on morphological characters data separated the bougainvillea cultivars into 12 major clusters. Cluster-I exhibited as largest cluster compared to all other clusters comprising 49 cultivars. However, cluster II with 14 cultivars, cluster III with 12 cultivars, cluster XII with 7, cluster X with 6, cluster VII with 5 cluster IV with 2 and clusters no V, VI, VIII, IX, XI having only one cultivar in each case. It clearly grouped the cultivars of single and double type of bracts and also grouping based on pattern of variegation in leaves. PCA plot also grouped the cultivars as a fashion of NJ clusters however, it was unable to distinguish among the single bracted types in this method. This considerable amount of variation was due to the diversity in bougainvillea cultivars. On the basis of present investigation, these cultivars were grouped into different categories for different character, may be used effectively for identification of cultivars. Further, these cultivars can be used in crop improvement programme.

Downloads

Download data is not yet available.

References

Anonymous. 2011. Draft guidelines for the conduct of test for distinctiveness, uniformity and stability (DUS) on Bougainvillea, UPOV, Geneva. Available at: http://www.upov.int/test_guidelines/en/fulltext_tgdocs_bougainvillea.

Fufa H, Baenziger P S, Beecher B S, Dweikat I, Graybosch R A and Eskridge K M. 2005. Comparison of phenotypic and molecular marker-based classifications of hard red winter wheat cultivars. Euphytica. 145: 133–46. DOI: https://doi.org/10.1007/s10681-005-0626-3

Goodman M M. 1972. Distance analysis in biology. Systematic Zoololgy 21: 174–86. DOI: https://doi.org/10.1093/sysbio/21.2.174

Gupta R, Singh L and Singh R. 2006. Growth and flowering behaviour studies in Indian varieties of bougainvillea. (In) Proceedings of the National Conference on Bougainvillea, pp 57–62.

Khoshoo T N. 1998. Prospectives in bougainvillea breeding. Bougainvillea Newsletter 6(2): 7–10.

Kumar R, Prasad A and Bajpai P N. 2002. Variation in Bougainvillea and promising varieties. Indian Bougainvillea Annual 17: 32–3.

MacDaniels L H. 1981. A study of cultivars in Bougainvillea (Nyctanginaceae). Baileya 21: 77–100.

Panwar S, Singh K P and Namita. 2012. Assessment of variability, heritability components and grouping of Indian rose (Rosa hybrida) genotypes based on DUS guidelines. Indian Journal of Agricultural Scieinces 82(10): 875–80.

Prasad K V, Kumar G, Kumar S, Singh O and Kumari G. 2007. DUS testing of chrysanthemum: A pre requisite for offering plant breeder’s right. A poster presented in 2nd Indian Horticulture Congress, April 17-21, Barapani, Meghalaya.

Rohlf F J. 2000. NTSYS-pc Numerical taxonomy and multivariate analysis system. Version 2.1 Exeter Software, Setauket, New York.

Singh B, Panwar R S, Voleti S R, Sharma V K and Thakur S. 1999. The New International bougainvillea check list. Division of Floriculture and Landscaping, Indian Agricultural Research Institute, New Delhi, pp 1–76.

Singh L, Arya S, Kumar R, Prasad A and Kumar A. 2010. Correlation coefficient studies in bougainvillea genotypes. Indian Bougainvillea Annual, 23: 50–3.

Singh L, Kumar R and Dwivedi A. 2006. Coefficient of variation and heritability in bougainvillea. Indian Bougainvillea Annual 19: 22–7.

Zadoo S N, Roy R P and Khoshoo T N. 1975. Cytogenetics of cultivated bougainvilleas I: Morphological variation. Proceedings of Indian National Science Academy 41: 498–502.