ArticleBMC plant biology2026
Impact of temperature on karyotype differences in Cynodon dactylon of different ploidy levels at different latitudes.
Article in BMC plant biology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
0 citing papers in PubMed.
No citing paper in PubMed yet.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
6 authors.
Funding
Abstract
backgroundChromosomal karyotype is closely linked to species evolution, adaptability, and environmental responses. As global climate change intensifies, temperature fluctuations critically affect chromosomal behavior, consequently influencing plant growth and development. However, the patterns of karyotypic variation that underpin ploidy levels evolution in Cynodon dactylon (L.) Pers. remain poorly understood.
methodIn this study, we selected 42 individuals of C. dactylon from 13 regions and cultivated them under three temperature conditions (25℃, 30℃ and 35℃). Their ploidy levels encompassed diploid to hexaploid. This research investigated the effect of temperature changes on karyotypes of C. dactylon. We employed microscopic and karyotype analysis to examine populations at different ploidy levels along latitudinal gradients in China. Statistical methods comprised preliminary analyses (ANOVA with Games-Howell and Tukey HSD post-hoc, PCA, correlation) and advanced modeling (mixed-effects and logistic regression), all preceded by assumption checks.
resultsKaryotype asymmetry varied with ploidy level. Diploids possessed the most asymmetric karyotypes, characterized by a higher coefficient of variation for chromosome length (CV
conclusionDiploids were more susceptible to temperature fluctuations due to their highly asymmetrical karyotypes. Conversely, tetraploids were less affected by temperature variation, which was associated with their symmetrical karyotypes. The karyotypic symmetry of higher ploidy levels underpinned the greater stability of polyploids under temperature variation. Temperature changes along latitudinal gradients influenced karyotype changes in C. dactylon, and karyotype evolution was pivotal in polyploid formation. These findings provide a theoretical basis for understanding the ploidy evolution of C. dactylon, screening wild resources in response to climate changes, and breeding new varieties.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.