Zhen Li , Zhonggang Li

1 Hainan Institute of Biotechnology, Haikou, 570206, Hainan, China
2 Hainan Institute of Tropical Agricultural Resources, Sanya, 572025, Hainan, China
Author    Correspondence author
International Journal of Molecular Ecology and Conservation, 2025, Vol. 15, No. 6   
Received: 29 Sep., 2025    Accepted: 16 Nov., 2025    Published: 01 Dec., 2025

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

This study systematically analyzes recent research progress on the pineapple (Ananas comosus) genome, focusing on three key evolutionary features: the transition from C3 to CAM photosynthesis, chromosomal rearrangements, and the evolution of gene duplication clusters. Major findings indicate that during its evolutionary history, pineapple underwent limited whole-genome duplication events, retained a relatively conserved karyotype of seven chromosomes, and achieved functional gene expansion and diversification through segmental duplications and chromosomal structural rearrangements. By constructing an integrated framework of pineapple genome evolution, this study provides both theoretical foundations and practical guidance for future research on monocot evolution and the molecular breeding of crops with enhanced stress tolerance traits.

CAM photosynthesis; Chromosomal rearrangement; Gene duplication; Pineapple genome; Monocot evolution