Jiaqi Zhang
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Research Interests
Jiaqi Zhang has a total of 14 co-authors. Here are the top co-authors by number of shared publications:
- Jigao Yu
School of Life Sciences, North China University of Science and Technology, Tangshan, 063210, Hebei, China
1 shared publication - Jingjing Hu
School of Life Sciences, North China University of Science and Technology, Tangshan, 063210, Hebei, China
1 shared publication - Jinpeng Wang
Department of Bioinformatics, School of Life Sciences, North China University of Science and Technology , Hebei 063210
1 shared publication - Kanglu Zhao
Key Laboratory of Herbage & Endemic Crop Biotechnology, Ministry of Education, State Key Laboratory of Reproductive Regulation & Breeding of Grassland Livestock, College of Life Science, Inner Mongolia University, Hohhot, Inner Mongolia, 010021, China
1 shared publication - Lan Zhang
College of Life Sciences, North China University of Science and Technology, Tangshan, China
1 shared publication - Li Wang
School of Life Sciences, and Center for Genomics and Computational Biology, North China University of Science and Technology, Tangshan, China
1 shared publication
Latest Publications
- Open Access
- 7 March 2019
- Published by Springer Nature in BMC Genomics
- Vol. 20 (1) , 180
Reconstruction of evolutionary trajectories of chromosomes unraveled independent genomic repatterning between Triticeae and Brachypodium
Background: After polyploidization, a genome may experience large-scale genome-repatterning, featuring wide-spread DNA rearrangement and loss, and often chromosome number reduction. Grasses share a common tetraploidization, after which the originally doubled chromosome numbers reduced to different chromosome numbers among them. A telomere-centric reduction model was proposed previously to explain chromosome number reduction. With Brachpodium as an intermediate linking different major lineages of grasses and a model plant of the Pooideae plants, we wonder whether it mediated the evolution from ancestral grass karyotype to Triticeae karyotype. Results: By inferring the homology among Triticeae, rice, and Brachpodium chromosomes, we reconstructed the evolutionary trajectories of the Triticeae chromosomes. By performing comparative genomics analysis with rice as a reference, we reconstructed the evolutionary trajectories of Pooideae plants, including Ae. Tauschii (2n = 14, DD), barley (2n = 14), Triticum turgidum (2n = 4x = 28, AABB), and Brachypodium (2n = 10). Their extant Pooidea and Brachypodium chromosomes were independently produced after sequential nested chromosome fusions in the last tens of millions of years, respectively, after their split from rice. More frequently than would be expected by chance, in Brachypodium, the ‘invading’ and ‘invaded’ chromosomes are homoeologs, originating from duplication of a common ancestral chromosome, that is, with more extensive DNA-level correspondence to one another than random chromosomes, nested chromosome fusion events between homoeologs account for three of seven cases in Brachypodium (P-value≈0.00078). However, this phenomenon was not observed during the formation of other Pooideae chromosomes. Conclusions: Notably, we found that the Brachypodium chromosomes formed through exclusively distinctive trajectories from those of Pooideae plants, and were well explained by the telomere-centric model. Our work will contribute to understanding the structural and functional innovation of chromosomes in different Pooideae lineages and beyond.
- 7 March 2019
- Published by Springer Nature in BMC Genomics
- Vol. 20 (1) , 180
Open AccessReconstruction of evolutionary trajectories of chromosomes unraveled independent genomic repatterning between Triticeae and Brachypodium
Background: After polyploidization, a genome may experience large-scale genome-repatterning, featuring wide-spread DNA rearrangement and loss, and often chromosome number reduction. Grasses share a common tetraploidization, after which the originally doubled chromosome numbers reduced to different chromosome numbers among them. A telomere-centric reduction model was proposed previously to explain chromosome number reduction. With Brachpodium as an intermediate linking different major lineages of grasses and a model plant of the Pooideae plants, we wonder whether it mediated the evolution from ancestral grass karyotype to Triticeae karyotype. Results: By inferring the homology among Triticeae, rice, and Brachpodium chromosomes, we reconstructed the evolutionary trajectories of the Triticeae chromosomes. By performing comparative genomics analysis with rice as a reference, we reconstructed the evolutionary trajectories of Pooideae plants, including Ae. Tauschii (2n = 14, DD), barley (2n = 14), Triticum turgidum (2n = 4x = 28, AABB), and Brachypodium (2n = 10). Their extant Pooidea and Brachypodium chromosomes were independently produced after sequential nested chromosome fusions in the last tens of millions of years, respectively, after their split from rice. More frequently than would be expected by chance, in Brachypodium, the ‘invading’ and ‘invaded’ chromosomes are homoeologs, originating from duplication of a common ancestral chromosome, that is, with more extensive DNA-level correspondence to one another than random chromosomes, nested chromosome fusion events between homoeologs account for three of seven cases in Brachypodium (P-value≈0.00078). However, this phenomenon was not observed during the formation of other Pooideae chromosomes. Conclusions: Notably, we found that the Brachypodium chromosomes formed through exclusively distinctive trajectories from those of Pooideae plants, and were well explained by the telomere-centric model. Our work will contribute to understanding the structural and functional innovation of chromosomes in different Pooideae lineages and beyond.