Unravelling the novel sex determination genotype with ‘ZY’ and a distinctive 2.15–2.95 Mb inversion among poplar species through haplotype-resolved genome assembly and comparative genomics analysis. Li, J., Chen, T., Gao, K., Xue, Y., Wu, R., Guo, B., Chen, Z., Li, S., Zhang, R., Jia, K., Mao, J., & An, X. Molecular Ecology Resources, n/a(n/a):e14002. _eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/1755-0998.14002![Unravelling the novel sex determination genotype with ‘ZY’ and a distinctive 2.15–2.95 Mb inversion among poplar species through haplotype-resolved genome assembly and comparative genomics analysis [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Populus tomentosa, an indigenous tree species, is widely distributed and cultivated over 1,000,000 km2 in China, contributing significantly to forest production, ecological conservation and urban–rural greening. Although a reference genome is available for P. tomentosa, the intricate interspecific hybrid origins, chromosome structural variations (SVs) and sex determination mechanisms remain confusion and unclear due to its broad and even overlapping geographical distribution, extensive morphological variations and cross infiltration among white poplar species. We conducted a haplotype-resolved de novo assembly of P. tomentosa elite individual GM107, which comprises subgenomes a and b with a total genome size of 714.9 Mb. We then analysed the formation of hybrid species and the phylogenetic evolution and sex differentiation across the entire genus. Phylogenomic analyses suggested that GM107 likely originated from a hybridisation event between P. alba (♀) and P. davidiana (♂) which diverged at approximately 3.8 Mya. A total of 1551 chromosome SVs were identified between the two subgenomes. More noteworthily, a distinctive inversion structure spanning 2.15–2.95 Mb was unveiled among Populus, Tacamahaca, Turaga, Aigeiros poplar species and Salix, highlighting a unique evolutionary feature. Intriguingly, a novel sex genotype of the ZY type, which represents a crossover between XY and ZW systems, was identified and confirmed through both natural and artificial hybrids populations. These novel insights offer significant theoretical value for the study of the species' evolutionary origins and serve as a valuable resource for ecological genetics and forest biotechnology.
@article{li_unravelling_nodate,
title = {Unravelling the novel sex determination genotype with ‘{ZY}’ and a distinctive 2.15–2.95 {Mb} inversion among poplar species through haplotype-resolved genome assembly and comparative genomics analysis},
volume = {n/a},
copyright = {© 2024 John Wiley \& Sons Ltd.},
issn = {1755-0998},
url = {https://onlinelibrary.wiley.com/doi/abs/10.1111/1755-0998.14002},
doi = {10.1111/1755-0998.14002},
abstract = {Populus tomentosa, an indigenous tree species, is widely distributed and cultivated over 1,000,000 km2 in China, contributing significantly to forest production, ecological conservation and urban–rural greening. Although a reference genome is available for P. tomentosa, the intricate interspecific hybrid origins, chromosome structural variations (SVs) and sex determination mechanisms remain confusion and unclear due to its broad and even overlapping geographical distribution, extensive morphological variations and cross infiltration among white poplar species. We conducted a haplotype-resolved de novo assembly of P. tomentosa elite individual GM107, which comprises subgenomes a and b with a total genome size of 714.9 Mb. We then analysed the formation of hybrid species and the phylogenetic evolution and sex differentiation across the entire genus. Phylogenomic analyses suggested that GM107 likely originated from a hybridisation event between P. alba (♀) and P. davidiana (♂) which diverged at approximately 3.8 Mya. A total of 1551 chromosome SVs were identified between the two subgenomes. More noteworthily, a distinctive inversion structure spanning 2.15–2.95 Mb was unveiled among Populus, Tacamahaca, Turaga, Aigeiros poplar species and Salix, highlighting a unique evolutionary feature. Intriguingly, a novel sex genotype of the ZY type, which represents a crossover between XY and ZW systems, was identified and confirmed through both natural and artificial hybrids populations. These novel insights offer significant theoretical value for the study of the species' evolutionary origins and serve as a valuable resource for ecological genetics and forest biotechnology.},
language = {en},
number = {n/a},
urldate = {2024-08-09},
journal = {Molecular Ecology Resources},
author = {Li, Juan and Chen, Tingting and Gao, Kai and Xue, Yinxuan and Wu, Ruqian and Guo, Bin and Chen, Zhong and Li, Shanwen and Zhang, Ren-Gang and Jia, Kai-Hua and Mao, Jian-Feng and An, Xinmin},
note = {\_eprint: https://onlinelibrary.wiley.com/doi/pdf/10.1111/1755-0998.14002},
keywords = {Populus tomentosa, chromosome structural variations, haplotype-resolved genome assembly, interspecific hybrid, parental origin, sex determination},
pages = {e14002},
}
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Although a reference genome is available for P. tomentosa, the intricate interspecific hybrid origins, chromosome structural variations (SVs) and sex determination mechanisms remain confusion and unclear due to its broad and even overlapping geographical distribution, extensive morphological variations and cross infiltration among white poplar species. We conducted a haplotype-resolved de novo assembly of P. tomentosa elite individual GM107, which comprises subgenomes a and b with a total genome size of 714.9 Mb. We then analysed the formation of hybrid species and the phylogenetic evolution and sex differentiation across the entire genus. Phylogenomic analyses suggested that GM107 likely originated from a hybridisation event between P. alba (♀) and P. davidiana (♂) which diverged at approximately 3.8 Mya. A total of 1551 chromosome SVs were identified between the two subgenomes. More noteworthily, a distinctive inversion structure spanning 2.15–2.95 Mb was unveiled among Populus, Tacamahaca, Turaga, Aigeiros poplar species and Salix, highlighting a unique evolutionary feature. Intriguingly, a novel sex genotype of the ZY type, which represents a crossover between XY and ZW systems, was identified and confirmed through both natural and artificial hybrids populations. 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