干旱区生态环境知识资源中心(Arid): The genome of Cleistogenes songorica provides a blueprint for functional dissection of dimorphic flower differentiation and drought adaptability

Arid

DOI	10.1111/pbi.13483
	The genome of Cleistogenes songorica provides a blueprint for functional dissection of dimorphic flower differentiation and drought adaptability
	Zhang, Jiyu; Wu, Fan; Yan, Qi; John, Ulrik P.; Cao, Mingshu; Xu, Pan; Zhang, Zhengshe; Ma, Tiantian; Zong, Xifang; Li, Jie; Liu, Ruijuan; Zhang, Yufei; Zhao, Yufeng; Kanzana, Gisele; Lv, Yanyan; Nan, Zhibiao; Spangenberg, German; Wang, Yanrong
通讯作者	Wang, YR
来源期刊	PLANT BIOTECHNOLOGY JOURNAL
ISSN	1467-7644
EISSN	1467-7652
英文摘要	Cleistogenes songorica (2n = 4x = 40) is a desert grass with a unique dimorphic flowering mechanism and an ability to survive extreme drought. Little is known about the genetics underlying drought tolerance and its reproductive adaptability. Here, we sequenced and assembled a high-quality chromosome-level C. songorica genome (contig N50 = 21.28 Mb). Complete assemblies of all telomeres, and of ten chromosomes were derived. C. songorica underwent a recent tetraploidization (similar to 19 million years ago) and four major chromosomal rearrangements. Expanded genes were significantly enriched in fatty acid elongation, phenylpropanoid biosynthesis, starch and sucrose metabolism, and circadian rhythm pathways. By comparative transcriptomic analysis we found that conserved drought tolerance related genes were expanded. Transcription of CsMYB genes was associated with differential development of chasmogamous and cleistogamous flowers, as well as drought tolerance. Furthermore, we found that regulation modules encompassing miRNA, transcription factors and target genes are involved in dimorphic flower development, validated by overexpression of CsAP2_9 and its targeted miR172 in rice. Our findings enable further understanding of the mechanisms of drought tolerance and flowering in C. songorica, and provide new insights into the adaptability of native grass species in evolution, along with potential resources for trait improvement in agronomically important species.
英文关键词	Cleistogenes songorica genome assembly allotetraploid dimorphic flower cleistogamy drought tolerance
类型	Article ; Early Access
语种	英语
开放获取类型	DOAJ Gold
收录类别	SCI-E
WOS记录号	WOS:000585916600001
WOS关键词	TRANSCRIPTION FACTORS ; GENE-EXPRESSION ; NONCODING RNAS ; STRESS ; ANNOTATION ; TOLERANCE ; ALIGNMENT ; BIOSYNTHESIS ; SEQUENCE ; PLANTS
WOS类目	Biotechnology & Applied Microbiology ; Plant Sciences
WOS研究方向	Biotechnology & Applied Microbiology ; Plant Sciences
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328439
作者单位	[Zhang, Jiyu; Wu, Fan; Yan, Qi; Xu, Pan; Zhang, Zhengshe; Ma, Tiantian; Zong, Xifang; Li, Jie; Zhang, Yufei; Zhao, Yufeng; Kanzana, Gisele; Lv, Yanyan; Nan, Zhibiao; Wang, Yanrong] Lanzhou Univ, Coll Pastoral Agr Sci & Technol,Minist Educ, Engn Res Ctr Grassland Ind,Minist Agr & Rural Aff, State Key Lab Grassland Agroecosyst,Key Lab Grass, Lanzhou, Peoples R China; [John, Ulrik P.; Spangenberg, German] La Trobe Univ, Ctr AgriBiosci, Dept Jobs Precincts & Reg, AgriBio,Agr Victoria Res, Bundoora, Vic, Australia; [Cao, Mingshu] AgResearch Ltd, Grasslands Res Ctr, Palmerston North, New Zealand; [Liu, Ruijuan] Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Jiyu,Wu, Fan,Yan, Qi,et al. The genome of Cleistogenes songorica provides a blueprint for functional dissection of dimorphic flower differentiation and drought adaptability[J]. 兰州大学.
APA	Zhang, Jiyu.,Wu, Fan.,Yan, Qi.,John, Ulrik P..,Cao, Mingshu.,...&Wang, Yanrong.
MLA	Zhang, Jiyu,et al."The genome of Cleistogenes songorica provides a blueprint for functional dissection of dimorphic flower differentiation and drought adaptability".PLANT BIOTECHNOLOGY JOURNAL