PJB-2024-1531
Genetic diversity, clonal diversity and fine-scale spatial genetic structure of the white and red fruit color morphs of Fragaria pentaphylla populations
Luxi Chen, Suting Xu and Junmin Li
Abstract
Environmental heterogeneity and biological characteristics of plants may have an impact on the fine-scale spatial genetic structure (FSGS) of plant populations. It is not yet known how fruit color polymorphisms and environmental heterogeneity influence the FSGS. In this study, the genetic diversity, clonal diversity and FSGS of the white and red morphs of the wild strawberry (Fragaria pentaphylla) populations at three sites in Mou County, Sichun Province, were analyzed using the simple sequence repeat technique. Among 136, 101, and 141 red morph individuals, 43, 53 and 65 genets were identified; whereas among 18, 22, and 14 white morph individuals, 9, 20, and 12 genets were identified. Genetic diversity were similar between the two morphs of F. pentaphylla, however the red morph had higher clonal diversity than the white morph. No significant difference in genetic diversity of th two morphs between populations at different sites. Clonal diversity varied, being largest at site 2, and lowest at site 1. The red morph showed stronger FSGS than white morph. The x-intercepts (index indicated the distance that clones can reach) of the red morph were larger than those of the white morph. The FSGS of F. pentaphylla varied between the three sites, which could be due to the different investment in vegetative growth influenced by habitats heterogeneity. Our findings may be fundamental for the study of the mechanisms underlying the adaptation strategies of wild strawberries with different fruit coloration
To Cite this article:
Chen, L., S. Xu and J. Li. 2024. Genetic diversity, clonal diversity and fine-scale spatial genetic structure of the white and red fruit color morphs of Fragaria pentaphylla populations. Pak. J. Bot., 56(4): DOI: http://dx.doi.org/10.30848/PJB2024-4(1)
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