@article{Feng2024, 
author = {Yishan Feng and Zhenyi Wang and Qimeng Xiao and Jia Teng and Jianyu Wang and Zijian Yu and Jiaqi Wang and Qiang Xu and Yan Zhang and Shaoqi Shen and Shoutong Bao and Yu Li and Zimo Yan and Yue Ding and Zihan Liu and Yuxian Li and Tianyu Lei and Min Yuan and Xiu-Qing Li and Jinpeng Wang},
title = {A likely paleo-autotetraploidization event shaped the high conservation of Nyssaceae genome},
year = {2024},
journal = {Horticultural Plant Journal},
volume = {10},
number = {3},
pages = {911-930},
keywords = {Nyssaceae, Polyploidization, Multigenome alignment, Evolutionary rate, Autotetraploidization, Karyotype evolution},
url = {https://www.sciopen.com/article/10.1016/j.hpj.2022.09.010},
doi = {10.1016/j.hpj.2022.09.010},
abstract = {Scientific knowledge about the ancestral genome of core eudicot plant kingdom can potentially have profound impacts on both basic and applied research, including evolution, genetics, genomics, ecology, agriculture, forestry, and global climate. To investigate which plant conserves best the core eudicots common ancestor genome, we compared Arcto-Tertiary relict Nyssaceae and 30 other eudicot plant families. The genomes of Davidia involucrata (a known living fossil), Camptotheca acuminata and Nyssa sinensis, one per existent genus of Nyssaceae, were performed comparative genomic analysis. We found that Nyssaceae originated from a single Nyssaceae common tetraploidization event (NCT)– autotetraploidization 28–31 Mya after the core eudicot common hexaploidization (ECH). We identified Nyssaceae orthologous and paralogous genes, determined its chromosomal evolutionary trajectory, and reconstructed the Nyssaceae most recent ancestor genome. D. involucrata genome contained the entire seven paleochromosomes and 17 ECH-generated eudicot common ancestor chromosomes and was the slowest in mutation among the analyzed 42 species of 31 plant families. Combing both its high retention of paleochromosomes and its low mutation rate, D. involucrata provides the best case in conservation of the core eudicot paleogenome.}
}