A new species of Ilex (Aquifoliaceae) from Jiangxi Province, China, based on morphological and molecular data

Jiang, Lei; Xu, Ke‐Wang; Fan, Qingxia; Peng, Hua

doi:10.11646/phytotaxa.298.2.4

Cited by 11 publications

(20 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Phylogenetic trees show that I. integra is clustered with I. cornuta from Korea, Ilex latifolia, and Ilex sp. from China (Yao et al 2016) supported by high bootstrap values, agreeing with previous phylogenetic analyses based on ITS and chloroplast marker sequences (Cu enoud et al 2000;Gottlieb et al 2005;Jiang et al 2017; Figure 1). 428 insertions and deletions and 55 single nucleotide polymorphisms identified between I. integra and I. cornuta, presents that two chloroplast genomes contain enough variations as a different species in comparison to previous studies (Duchesea chrysantha; Nymphaea alba; Coffea arabica).…”

supporting

confidence: 89%

“…XY-2016 (KX426469), Ilex delavayi (KX426470), Ilex paraguaiensis (KP016928), Ilex dumorsa (KP016927), Ilex szechwanensis (KX426466), Ilex wilsonii (KX426471), Ilex polyneura (KX426468), Ilex pubescens (KX426467), and Helwingia himalaica (NC_031370). Section names were displayed in the right side of phylogenetic tree (Gottlieb et al 2005;Wu et al 2008;Jiang et al 2017). Phylogenetic tree was drawn based on neighbor joining tree.…”

Section: Disclosure Statementmentioning

confidence: 99%

See 1 more Smart Citation

The complete chloroplast genome of Nepal Holly, Ilex integra Thunb. (Aquifoliaceae)

Park¹,

Kim²,

Kwon³

et al. 2019

Mitochondrial DNA Part B

View full text Add to dashboard Cite

Ilex integra Thunb. is an ornamental tree distributed in Korea, Taiwan, mid-Southern China, and Japan. To understand the genetic differences between I. integra and I. cornuta, we presented complete chloroplast genome of I. integra, which is 157,548 bp long and has four subregions: 86,935 bp of large single copy (LSC) and 18,426 bp of small single copy (SSC) regions are separated by 26,093 bp of inverted repeat (IR) regions including 131 genes (86 protein-coding genes, 8 rRNAs, and 37 tRNAs). The overall GC content of the chloroplast genome is 37.6% and those in the LSC, SSC, and IR regions are 35.7%, 31.9%, and 42.9%, respectively. Phylogenetic trees show that I. integra is clustered with I. cornuta and I. latifolia. Sequence variations identified from I. integra and I. corunta presents that both species have enough sequence variations as different species.

show abstract

supporting

confidence: 89%

Section: Disclosure Statementmentioning

confidence: 99%

The complete chloroplast genome of Nepal Holly, Ilex integra Thunb. (Aquifoliaceae)

Park¹,

Kim²,

Kwon³

et al. 2019

Mitochondrial DNA Part B

View full text Add to dashboard Cite

show abstract

“…Ten Ilex and one Helwingia chloroplast genomes from Aquifoliaceae were used for constructing neighbor joining (bootstrap repeat is 10,000) and maximum likelihood (bootstrap repeat is 1,000) phylogenetic trees using MEGA X (Kumar et al 2018) after aligning whole chloroplast genome sequences using MAFFT 7.388 (Katoh and Standley 2013). Phylogenetic trees show that I. cornuta is clustered with Ilex latifolia and new species of Ilex (Section Ilex in Figure 1; Yao et al 2016), agreeing with previous studies (Cu enoud et al 2000;Jiang et al 2017) in Section Ilex (Wu et al 2008). In addition, Ilex dumosa and Ilex paraguariensis originated from South America are not in basial clade of Ilex genus with high bootstrap supports (Figure 1), disagreeing with the previous study (Gottlieb et al 2005).…”

supporting

confidence: 84%

The complete chloroplast genome of horned holly, Ilex cornuta Lindl. & Paxton (Aquifoliaceae)

Park¹,

Kim²,

Nam

et al. 2019

Mitochondrial DNA Part B

View full text Add to dashboard Cite

Ilex cornuta Lindl. & Paxton is a species distributed in eastern China and Korea, utilized as traditional medical plants as well as horticultural species. Here, we completed chloroplast genome of I. cornuta. Its length is 157,224 bp long and has four subregions: 86,610 bp of large single copy (LSC) and 18,429 bp of small single copy (SSC) regions are separated by 26,092 bp of inverted repeat (IR) regions including 131 genes (86 protein-coding genes, eight rRNAs, and 37 tRNAs). The overall GC content of this chloroplast genome is 37.7% and those in the LSC, SSC, and IR regions are 35.7%, 31.9%, and 42.9%, respectively. Phylogenetic trees show that I. cornuta is clustered in Section Ilex clade clearly. In addition, two Ilex species from South America are not in a basal clade, which is different from previous phylogenetic study, suggesting more Ilex chloroplast genomes are required to understand phylogenetic relationships of Ilex species.

show abstract

“…In addition, comparing of the genetic diversity patterns across the main lineages in Quercus can provide more information to infer the driving forces which might contribute to their divergence. Furthermore, the knowledge on biodiversity inventory in East Asian subtropics is far from enough, and new species are continuously being identified in recent years (e.g., Xiao et al, 2015 ; Liang et al, 2016 ; Jiang et al, 2017 ; Wang C.W. et al, 2017 ).…”

Section: Introductionmentioning

confidence: 99%

The Application and Limitation of Universal Chloroplast Markers in Discriminating East Asian Evergreen Oaks

et al. 2018

View full text Add to dashboard Cite

The East Asian subtropics mostly occupied by evergreen broad-leaved forests (EBLFs), is one of the global diversity centers for evergreen oaks. Evergreen oaks are keystone canopy trees in EBLFs with important ecosystem function and crucial significance for regional biodiversity conservation. However, the species composition and diversity of Asian evergreen oaks are poorly understood. Here, we test whether the four chloroplast markers atpI-atpH, matK, psbA-trnH, and ycf1, can discriminate the two evergreen oak sections in Asia – Cyclobalanopsis and Ilex. Two hundred and seventy-two individuals representing 57 species were scanned and 17 species from other oaks sections were included for phylogenetic reconstruction. The genetic diversity of the Quercus sections was also compared. Overall, we found that universal chloroplast DNA (cpDNA) barcoding markers could resolve two clades in Quercus, i.e., subgenus Cerris (Old World Clade) and subgenus Quercus (New World Clade). The chloroplast markers distinguished the main sections, with few exceptions. Each cpDNA region showed no barcoding gap and none of them provided good resolution at the species level. The best species resolution (27.78%) was obtained when three or four markers were combined and analyzed using BLAST. The high conservation of the cpDNA and complicated evolutionary patterns, due to incomplete lineage sorting, interspecific hybridization and introgressions may hinder the ability of cpDNA markers to discriminate different species. When comparing diversification pattern across Quercus sections (Cyclobalanopsis, Ilex, Cerris, Quercus, and Protobalanus), we found that section Ilex was the most genetically diverse, and section Cyclobalanopsis was lower genetically diverse. This diversification pattern may have resulted from the interplay of the Eurasia Cenozoic tectonic movements, climate changes and different niches of their ancestral lineages.

show abstract

A new species of Ilex (Aquifoliaceae) from Jiangxi Province, China, based on morphological and molecular data

Cited by 11 publications

References 1 publication

The complete chloroplast genome of Nepal Holly, Ilex integra Thunb. (Aquifoliaceae)

The complete chloroplast genome of Nepal Holly, Ilex integra Thunb. (Aquifoliaceae)

The complete chloroplast genome of horned holly, Ilex cornuta Lindl. & Paxton (Aquifoliaceae)

The Application and Limitation of Universal Chloroplast Markers in Discriminating East Asian Evergreen Oaks

Contact Info

Product

Resources

About