The origin of allotetraploid Lepisorus inaequibasis (Polypodiaceae) and paternal bias in its morphology and abiotic niche

doi:10.1002/tax.12199

CORC > 植物研究所 > 中国科学院植物研究所 > 系统与进化植物学国家重点实验室

	The origin of allotetraploid Lepisorus inaequibasis (Polypodiaceae) and paternal bias in its morphology and abiotic niche
	Zhao, Cun-Feng ; Wei, Ran ; Xiang, Qiao-Ping ; Zhang, Xian-Chun
刊名	TAXON
	2020
卷号	69 期号:1 页码:43-55
关键词	hybrid origin paternal preference polyploid reticulate evolution
ISSN号	0040-0262
DOI	10.1002/tax.12199
文献子类	Article
英文摘要	Lepisorus inaequibasis is thought to be of hybrid origin due to its leaf shape and sporangia being intermediate between those of its putative progenitors. Subsequent molecular studies have supported its hybrid origin, but its progenitors have not been determined. Here, we performed molecular phylogenetic analysis, flow cytometry (FCM), morphological character observation, and ecological niche modelling (ENM) to elucidate the origin of L. inaequibasis. The phylogenetic trees inferred from single-copy nuclear genes (pgiC and gapCp short) confirm the hybrid origin of L. inaequibasis from Lepisorus waltonii and Lepisorus jakonensis. Chloroplast DNA (cpDNA) phylogeny indicates that L. jakonensis is the maternal progenitor. All populations of L. inaequibasis share a single cpDNA haplotype identical to the lineage of L. jakonensis in the central Himalayas; thus, we hypothesize that L. inaequibasis originated in the central Himalaya region and dispersed to east Himalaya and Hengduan Mountain regions. Based on FCM, L. inaequibasis is tetraploid, while its progenitors are diploid. Principal component analysis of rhizome scales and observations of sporangial annuli indicated a high degree of morphological similarity between L. inaequibasis and its paternal progenitor species, L. waltonii. The ENM results showed that L. inaequibasis has a relatively high niche identity value with L. waltonii. Therefore, we conclude that L. inaequibasis is an allotetraploid that originated through hybridization between the diploid species L. waltonii and L. jakonensis. This allotetraploid species shows clear paternal bias in both its morphological characters and its ecological niche.
学科主题	Plant Sciences ; Evolutionary Biology
电子版国际标准刊号	1996-8175
出版地	HOBOKEN
WOS关键词	GENOME SIZE ; GENE-EXPRESSION ; HYBRIDIZATION ; POLYPLOIDY ; FREQUENCY ; DISTRIBUTIONS ; SPECIATION ; INFERENCE ; SOFTWARE ; COMPLEX
WOS研究方向	Plant Sciences ; Evolutionary Biology
语种	英语
出版者	WILEY
WOS记录号	WOS:000522901900001
资助机构	National Natural Science Foundation of China (NSFC)National Natural Science Foundation of China (NSFC) [31370260, 31470317]
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/21833]
专题	系统与进化植物学国家重点实验室
作者单位	1.[Zhao, Cun-Feng 2.Wei, Ran 3.Xiang, Qiao-Ping 4.Chinese Acad Sci, Inst Bot, State Key Lab Systemat & Evolutionary Bot, Beijing 100093, Peoples R China 5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Cun-Feng,Wei, Ran,Xiang, Qiao-Ping,et al. The origin of allotetraploid Lepisorus inaequibasis (Polypodiaceae) and paternal bias in its morphology and abiotic niche[J]. TAXON,2020,69(1):43-55.
APA	Zhao, Cun-Feng,Wei, Ran,Xiang, Qiao-Ping,&Zhang, Xian-Chun.(2020).The origin of allotetraploid Lepisorus inaequibasis (Polypodiaceae) and paternal bias in its morphology and abiotic niche.TAXON,69(1),43-55.
MLA	Zhao, Cun-Feng,et al."The origin of allotetraploid Lepisorus inaequibasis (Polypodiaceae) and paternal bias in its morphology and abiotic niche".TAXON 69.1(2020):43-55.