02186nas a2200157 4500008004100000245009100041210006900132520169000201100001701891700001301908700001201921700001301933700001801946700001601964856004801980 2018 eng d00aComparative chloroplast genomics and phylogenetics of nine Lindera species (Lauraceae)0 aComparative chloroplast genomics and phylogenetics of nine Linde3 a

Lindera, a core genus of the Lauraceae family, has important economic uses in eastern Asia and North America. However, its historical diversification has not been clarified. In this study, we report nine newly sequenced Lindera plastomes. The plastomes of these nine Lindera species range from 152,211 (L. nacusua) to 152,968 bp (L. metcalfiana) in length, similar to that of another Lauraceae species, Litsea glutinosa (152,618 bp). The length variation of these plastomes derived from the length variation in the loci ycf1, ycf2, ψycf1, and ndhF-ψycf1. Comparing our sequences with other available plastomes in the Lauraceae indicated that eight hypervariable loci, ihbA-trnG, ndhA, ndhF-rpl32, petA-psbJ, psbK-psbI, rps16, trnS-trnG, and ycf1, could serve as DNA barcodes for species delineation, and that the inverted repeats (IRs) showed contraction/expansion. Further phylogenetic analyses were performed using 32 complete plastomes of Lauraceae and seven barcodes from 14 additional species of Lindera and related species in the core Lauraceae. The results showed that these Lindera species grouped into two or four sub-clades, and that two Litsea species and Laurus nobilis were located in the same sub-clade as five Lindera species. These data support a close relationship between the genera Laurus, Lindera, and Litsea, and suggest that Lindera is polyphyletic.

1 aZhao, Mei-Li1 aSong, Yu1 aNi, Jun1 aYao, Xin1 aTan, Yun-Hong1 aXu, Zeng-Fu uhttps://lauraceae.myspecies.info/node/2041002752nas a2200241 4500008004100000245007500041210006900116260001200185520205600197653001602253653001302269653001502282653003102297100001302328700001702341700001802358700001802376700001302394700001702407700001402424700002402438856004802462 2019 eng d00aPlastid phylogenomics improve phylogenetic resolution in the Lauraceae0 aPlastid phylogenomics improve phylogenetic resolution in the Lau c08/20193 a

The family Lauraceae is a major component of tropical and subtropical forests worldwide, and includes somecommercially important timber trees and medicinal plants. However, phylogenetic relationships within Lauraceae have long been problematic due to low sequence divergence in commonly used markers, even between morphologically distinct taxa within the family. Here wepresent phylogenetic analyses of 43 newly generated Lauraceae plastomes together with 77 plastomes obtained from GenBank, representing 24 genera of Lauraceae and 17 related families of angiosperms, plus nine barcodes from 19 additional species in 18 genera of Lauraceae, in order to reconstruct highly supported relationships for the Lauraceae. Our phylogeny supports the relationships: sisterhood of the Lauraceae and a clade containing Hernandiaceae and Monimiaceae, with Atherospermataceae and Gomortegaceae being the next sistergroups, followed by Calycanthaceae. Our results highlight a monophyletic Lauraceae, with nine well‐supported clades as follows: Hypodaphnis clade, Beilschmiedia–Cryptocarya clade, Cassytha clade, Neocinnamomum clade, Caryodaphnopsis clade, Chlorocardium–Mezilaurus clade, Machilus–Persea clade, Cinnamomum–Ocotea clade, and Laurus–Neolitsea clade. The topology recovered here is consistent with the patterns of plastome structural evolution and morphological synapomorphies reported previously. More specifically, flower sex, living type, inflorescence type, ovary position, anther locus number, leaf arrangement, leaf venation, lateral vein number, tree height, and inflorescence location all represent morphological synapomorphies of different lineages. Our findings have taxonomic implications and two new tribes, Caryodaphnopsideae and Neocinnamomeae, are described, and the composition of four other tribes is updated. The phylogeny recovered here provides a robust phylogenetic framework through which to address the evolutionary history of the Magnoliids, the third‐largest group of Mesangiospermae.

10achloroplast10aLaurales10amagnoliids10aphylogenetic relationships1 aSong, Yu1 aBin Yu, Wen-1 aTan, Yun-Hong1 aJin, Jian-Jun1 aWang, Bo1 aYang, Jun-Bo1 aLiu, Bing1 aCorlett, Richard, T uhttps://lauraceae.myspecies.info/node/2038901270nas a2200205 4500008004100000245014800041210006900189520058100258653001700839653002600856653001300882653002800895653002000923100001300943700001800956700001800974700001200992700001201004856004801016 2020 eng d00aTwo new species of Alseodaphnopsis (Lauraceae) from southwestern China and northern Myanmar: evidence from morphological and molecular analyses0 aTwo new species of Alseodaphnopsis Lauraceae from southwestern C3 a

Alseodaphnopsis maguanensis and A. putaoensis, two new species of Alseodaphnopsis (Lauraceae) from southwestern China (Yunnan Province) and northern Myanmar (Kachin State), are here described and illustrated based on both morphological and molecular evidence. They are morphologically similar to Alseodaphnopsis rugosa and phylogenetically closely related to A. rugosa and A. hainanensis respectively. Their preliminary conservation status is also estimated according to the IUCN Red List Categories and Criteria.

10aKachin state10aphylogenetic analysis10ataxonomy10atropical montane forest10aYunnan province1 aLi, Lang1 aTan, Yun-Hong1 aMeng, Hong-Hu1 aMa, Hui1 aLi, Jie uhttps://doi.org/10.3897/phytokeys.138.38569