Genome size variation in Cactaceae and its relationship with invasiveness and seed traits

0547553 - BÚ 2022 RIV NL eng J - Journal Article
Lopes, S. - Mota, L. - Castro, M. - Nobre, G. - Novoa, Ana - Richardson, D. M. - Loureiro, J. - Castro, S.
Genome size variation in Cactaceae and its relationship with invasiveness and seed traits.
Biological Invasions. Roč. 23, č. 10 (2021), s. 3047-3062. ISSN 1387-3547. E-ISSN 1573-1464
R&D Projects: GA ČR(CZ) GX19-28807X
Institutional support: RVO:67985939
Keywords : nuclear DNA content * potentially invasive plants * seed traits
OECD category: Ecology
Impact factor: 3.606, year: 2021
Method of publishing: Limited access
https://doi.org/10.1007/s10530-021-02557-w

The main goal of this study was to explore possible correlations between genome size and invasiveness in Cactaceae, and between genome size and seed size and weight, traits previously linked with invasiveness. . Contrary to expectation, no significant differences were observed in genome size among categories of invasion, suggesting that genome size alone is not a reliable predictor of invasiveness in Cactaceae. Also, no correlations were observed between genome size and the studied seed traits when the whole dataset was considered. At a finer scale, in Opuntioideae, positive significant correlations were observed between genome size and the seed traits studied, and in Cacteae, the opposite trend was observed. Since Cactaceae species possess low rates of metabolism, selection towards traits linked with genome size may not have been favoured irrespective of the invasive strategy.
Permanent Link: http://hdl.handle.net/11104/0324580