Claim · model-written summary
Phylogenetic results supported cladogenetic rather than hybrid origins for most of the 19 paleotetraploid Leucaena species.
Verbatim
e1“The phylogenetic results supported cladogenetic, rather than reticulate/hybrid, origins for most of the 19 paleotetraploid species”
t0“Leucaena (Fabaceae)”
Title
Alex Abair; Ashley N. Egan; Brittany Bugg; et al. American Journal of Botany 2026. doi:10.1002/ajb2.70178
Other claims from this paper (4)
- Observation Gene tree data supported hybrid origins for octoploid Leucaena.
- Observation The ancestral paleotetraploid genome size of Leucaena (1.52 pg/2C) is relatively conserved among the paleotetraploids.
- Association Genome size showed only a weak relationship with environmental variables, and the hypothesis of significant environmental impact on genome size was rejected.
- Mechanism Other factors, including paleotetraploid genomic stability, are suggested to have constrained genome size variation in Leucaena since a whole-genome duplication 16+ million years ago.
