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Genome size evolution of the extant lycophytes and ferns

文献类型：期刊论文

作者Wang, Fa-Guo; Wang, Ai-Hua; Bai, Cheng-Ke; Jin, Dong-Mei; Nie, Li-Yun; Harris, A. J.; Che, Le; Wang, Juan-Juan; Li, Shi-Yu; Xu, Lei
刊名PLANT DIVERSITY
出版日期2022
卷号44期号:2页码:141-152
ISSN号2096-2703
关键词Genome size Ferns Chromosome numbers Habitat type Whole-genome duplications Evolution
DOI10.1016/j.pld.2021.11.007
文献子类Article
英文摘要Ferns and lycophytes have remarkably large genomes. However, little is known about how their genome size evolved in fern lineages. To explore the origins and evolution of chromosome numbers and genome size in ferns, we used flow cytometry to measure the genomes of 240 species (255 samples) of extant ferns and lycophytes comprising 27 families and 72 genera, of which 228 species (242 samples) represent new reports. We analyzed correlations among genome size, spore size, chromosomal features, phylogeny, and habitat type preference within a phylogenetic framework. We also applied ANOVA and multinomial logistic regression analysis to preference of habitat type and genome size. Using the phylogeny, we conducted ancestral character reconstruction for habitat types and tested whether genome size changes simultaneously with shifts in habitat preference. We found that 2C values had weak phylogenetic signal, whereas the base number of chromosomes (x) had a strong phylogenetic signal. Furthermore, our analyses revealed a positive correlation between genome size and chromosome traits, indicating that the base number of chromosomes (x), chromosome size, and polyploidization may be primary contributors to genome expansion in ferns and lycophytes. Genome sizes in different habitat types varied significantly and were significantly correlated with habitat types; specifically, multinomial logistic regression indicated that species with larger 2C values were more likely to be epiphytes. Terrestrial habitat is inferred to be ancestral for both extant ferns and lycophytes, whereas transitions to other habitat types occurred as the major clades emerged. Shifts in habitat types appear be followed by periods of genomic stability. Based on these results, we inferred that habitat type changes and multiple whole-genome duplications have contributed to the formation of large genomes of ferns and their allies during their evolutionary history. Copyright ?? 2022 Kunming Institute of Botany, Chinese Academy of Sciences. Publishing services by Elsevier B.V. on behalf of KeAi Communications Co. Ltd. This is an open access article under the CC BY NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
学科主题Plant Sciences
电子版国际标准刊号2468-2659
出版地BEIJING
WOS关键词NUCLEAR-DNA CONTENT ; SPORE MORPHOLOGY ; ENVIRONMENTAL-FACTORS ; FLOW-CYTOMETRY ; CELL-SIZE ; PTERIDOPHYTES ; GENUS ; SELAGINELLA ; DYNAMICS ; GENETICS
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
语种英语
出版者KEAI PUBLISHING LTD
WOS记录号WOS:000798440100003
资助机构National Natural Science Foundation of China [31870188, 31800174, 31700172, 41571056] ; Shanghai Landscaping and City Appearance Administrative Bureau of China [G182411] ; Strategic Priority Research Program of the Chinese Academy of Sciences [XDA13020603, XDA13020500] ; Guangdong Natural Science Foundation [2015A030308015]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/28501]  
专题系统与进化植物学国家重点实验室
作者单位1.[Gu, Yu-Feng
2.Li, Shi-Yu
3.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China
4.[Harris, A. J.] Oberlin Coll, Dept Biol, Oberlin, OH 44074 USA
5.Nanning Normal Univ, Minist Educ, Key Lab Environm Change & Resources Use Beibu Gul, Nanning 530001, Peoples R China
6.Shanghai Chenshan Bot Garden, Eastern China Conservat Ctr Wild Endangered Plant, Shanghai 201602, Peoples R China
7.Shang, Hui
8.Gu, Yu-Feng
9.Shen, Hui
10.[Jin, Dong-Mei
推荐引用方式
GB/T 7714		 Wang, Fa-Guo,Wang, Ai-Hua,Bai, Cheng-Ke,et al. Genome size evolution of the extant lycophytes and ferns[J]. PLANT DIVERSITY,2022,44(2):141-152.
APA Wang, Fa-Guo.,Wang, Ai-Hua.,Bai, Cheng-Ke.,Jin, Dong-Mei.,Nie, Li-Yun.,...&Yan, Yue-Hong.(2022).Genome size evolution of the extant lycophytes and ferns.PLANT DIVERSITY,44(2),141-152.
MLA Wang, Fa-Guo,et al."Genome size evolution of the extant lycophytes and ferns".PLANT DIVERSITY 44.2(2022):141-152.

入库方式： OAI收割

来源：植物研究所

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