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The Pharus latifolius genome bridges the gap of early grass evolution
Ma,Peng-Fei; Liu,Yun-Long; Jin,Gui-Hua; Liu,Jing-Xia; Wu,Hong; He,Jun; Guo,Zhen-Hua; Li,De-Zhu
2021
Source PublicationPLANT CELL
ISSN1040-4651
Volume33Issue:4Pages:846-864
AbstractThe grass family (Poaceae) includes all commercial cereal crops and is a major contributor to biomass in various terrestrial ecosystems. The ancestry of all grass genomes includes a shared whole-genome duplication (WGD), named rho (rho) WGD, but the evolutionary significance of rho-WGD remains elusive. We sequenced the genome of Pharus latifolius, a grass species (producing a true spikelet) in the subfamily Pharoideae, a sister lineage to the core Poaceae including the (Panicoideae, Arundinoideae, Chloridoideae, Micrairoideae, Aristidoideae, and Danthonioideae (PACMAD) and Bambusoideae, Oryzoideae, and Pooideae (BOP) clades. Our results indicate that the P. latifolius genome has evolved slowly relative to cereal grass genomes, as reflected by moderate rates of molecular evolution, limited chromosome rearrangements and a low rate of gene loss for duplicated genes. We show that the rho-WGD event occurred approximately 98.2 million years ago (Ma) in a common ancestor of the Pharoideae and the PACMAD and BOP grasses. This was followed by contrasting patterns of diploidization in the Pharus and core Poaceae lineages. The presence of two FRIZZY PANICLE-like genes in P. latifolius, and duplicated MADS-box genes, support the hypothesis that the rho-WGD may have played a role in the origin and functional diversification of the spikelet, an adaptation in grasses related directly to cereal yields. The P. latifolius genome sheds light on the origin and early evolution of grasses underpinning the biology and breeding of cereals.
KeywordMADS-BOX GENES MULTIPLE SEQUENCE ALIGNMENT PHYLOGENETIC ANALYSIS FLORAL DEVELOPMENT MERISTEM IDENTITY FRIZZY-PANICLE ANCIENT RICE DUPLICATIONS EXPRESSION
DOI10.1093/plcell/koab015
WOS IDWOS:000671679400010
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Document Type期刊论文
Identifierhttp://ir.kib.ac.cn/handle/151853/73539
Collection中国科学院昆明植物研究所
Affiliation1.[Ma, Peng-Fei
2.Liu, Yun-Long
3.Jin, Gui-Hua
4.Liu, Jing-Xia
5.Wu, Hong
6.He, Jun
7.Guo, Zhen-Hua
8.Chinese Acad Sci, Kunming Inst Bot, Germplasm Bank Wild Species, Kunming 650201, Yunnan, Peoples R China
9.[Wu, Hong
10.Univ Chinese Acad Sci, Kunming Coll Life Sci, Kunming 650201, Yunnan, Peoples R China
Recommended Citation
GB/T 7714
Ma,Peng-Fei,Liu,Yun-Long,Jin,Gui-Hua,et al. The Pharus latifolius genome bridges the gap of early grass evolution[J]. PLANT CELL,2021,33(4):846-864.
APA Ma,Peng-Fei.,Liu,Yun-Long.,Jin,Gui-Hua.,Liu,Jing-Xia.,Wu,Hong.,...&Li,De-Zhu.(2021).The Pharus latifolius genome bridges the gap of early grass evolution.PLANT CELL,33(4),846-864.
MLA Ma,Peng-Fei,et al."The Pharus latifolius genome bridges the gap of early grass evolution".PLANT CELL 33.4(2021):846-864.
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