ArticleBMC plant biology2019
Fossil evidence reveals how plants responded to cooling during the Cretaceous-Paleogene transition.
Article in BMC plant biology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Comparative mitogenomics ofPeerJ · 2025Article
- Detecting signals of adaptive evolution in grape plastomes with a focus on the Cretaceous-Palaeogene (K/Pg) transition.Annals of botany · 2022Article
- A hot topic at the environment-health nexus: investigating the impact of climate change on infectious diseases.International journal of infectious diseases : IJID : official publication of the International Society for Infectious Diseases · 2022Article
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5 authors.
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Abstract
backgroundAround the Cretaceous-Paleogene (K-Pg) boundary, an obvious global cooling occurred, which resulted in dramatic changes in terrestrial ecosystems and the evolutionary trends of numerous organisms. However, how plant lineages responded to the cooling has remained unknown until now. Between ca. 70-60 Ma Mesocyparis McIver & Basinger (Cupressaceae), an extinct conifer genus, was distributed from eastern Asia to western North America and provides an excellent opportunity to solve this riddle.
resultsHere we report a new species, Mesocyparis sinica from the early Paleocene of Jiayin, Heilongjiang, northeastern China. By integrating lines of evidence from phylogeny and comparative morphology of Mesocyparis, we found that during ca.70-60 Ma, the size of seed cone of Mesocyparis more than doubled, probably driven by the cooling during the K-Pg transition, which might be an effective adaptation for seed dispersal by animals. More importantly, we discovered that the northern limit of this genus, as well as those of two other arboreal taxa Metasequoia Miki ex Hu et Cheng (gymnosperm) and Nordenskioldia Heer (angiosperm), migrated ca.4-5° southward in paleolatitude during this time interval.
conclusionsOur results suggest that the cooling during the K-Pg transition may have been responsible for the increase in size of the seed cone of Mesocyparis and have driven the migration of plants southwards.
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