Genome-wide expansion and reorganization during grass evolution: from 30 Mb chromosomes in rice and Brachypodium to 550 Mb in Avena

Q Liu, L Ye, M Li, Z Wang, G Xiong, Y Ye, T Tu… - BMC Plant …, 2023 - Springer
Abstract Background The BOP (Bambusoideae, Oryzoideae, and Pooideae) clade of the
Poaceae has a common ancestor, with similarities to the genomes of rice, Oryza sativa (2 n …

Haplotype-resolved nonaploid genome provides insights into in vitro flowering in bamboos

YJ Wang, C Guo, L Zhao, L Mao, XZ Hu… - Horticulture …, 2024 - academic.oup.com
Woody bamboos (Bambusoideae) are renowned for its polyploidy and rare flowering.
Bambusa odashimae is one of the bamboo species with the highest chromosome count …

Karyotyping of aneuploid and polyploid plants from low coverage whole-genome resequencing

K Zhao, Y Bai, Q Zhang, Z Zhao, Y Cao, L Yang… - BMC Plant …, 2023 - Springer
Background Karyotype, as a basic characteristic of species, provides valuable information
for fundamental theoretical research and germplasm resource innovation. However …

Alternating between even and odd ploidy levels switches on and off the recombination control, even near the centromeres

F Boideau, V Huteau, L Maillet, A Brunet… - The Plant …, 2024 - academic.oup.com
Meiotic recombination is a key biological process in plant evolution and breeding, as it
generates genetic diversity in each generation through the formation of crossovers (COs) …

Downregulation of the expression of subgenomic chromosome A7 genes promotes plant height in resynthesized allopolyploid Brassica napus

K Zhao, J Dong, J Xu, Y Bai, Y Yin, C Long… - Theoretical and Applied …, 2024 - Springer
Key message Homoeolog expression bias and the gene dosage effect induce
downregulation of genes on chromosome A7, causing a significant increase in the plant …

Interspecific transfer of genetic information through polyploid bridges

F Kauai, Q Bafort, F Mortier… - Proceedings of the …, 2024 - National Acad Sciences
Hybridization blurs species boundaries and leads to intertwined lineages resulting in
reticulate evolution. Polyploidy, the outcome of whole genome duplication (WGD), has more …

Exploring the patterns of evolution: Core thoughts and focus on the saltational model

G Usai, M Fambrini, C Pugliesi, S Simoni - BioSystems, 2024 - Elsevier
Abstract The Modern Synthesis, a pillar in biological thought, united Darwin's species origin
concepts with Mendel's laws of character heredity, providing a comprehensive …

Unambiguous chromosome identification reveals the factors impacting irregular chromosome behaviors in allotriploid AAC Brassica

Y Cao, J Xu, M Wang, J Gao, Z Zhao, K Li… - Theoretical and Applied …, 2024 - Springer
Key message The major irregular chromosome pairing and mis-segregation were detected
during meiosis through unambiguous chromosome identification and found that allotriploid …

[HTML][HTML] The occurrence, inheritance, and segregation of complex genomic structural variation in synthetic Brassica napus

D Hu, J Lu, W Li, Y Yang, J Xu, H Qin, H Wang, Y Niu… - The Crop Journal, 2024 - Elsevier
Abstract “Synthetic” allopolyploids recreated by interspecific hybridization play an important
role in providing novel genomic variation for crop improvement. Such synthetic …

Genome dosage alteration caused by chromosome pyramiding and shuffling effects on karyotypic heterogeneity, reproductive diversity, and phenotypic variation in …

Y Li, X Yan, M Cheng, Z Wu, Q Zhang, S Duan… - Theoretical and Applied …, 2024 - Springer
Key message We developed an array of Zea–Tripsacum tri-hybrid allopolyploids with
multiple ploidies. We unveiled that changes in genome dosage due to the chromosomes …