Xiaolan he

University of Helsinki | HY · Finnish Museum of Natural History

The Finnish Biodiversity Information Facility (FinBIF) maintains a national checklist of Finnish species, which is publicly available in the portal Species.fi. The checklist 2022 can be found and uploaded here: https://laji.fi/en/theme/checklist. FinBIF gathers up-to-date information about Finnish species into the checklist, which also functions...

Species differ in their biological susceptibility to extinction, but the set of traits determining susceptibility varies across taxa. It is yet unclear which patterns are common to all taxa, and which are taxon-specific, with consequences to conservation practice. In this study we analysed the generality of trait-based prediction of extinction risk...

Liverworts are known for their large chemical diversity. Much of this diversity is synthesized and enclosed within the oil bodies (OB), a synapomorphy of the lineage. OB contain the biosynthetic enzymes to produce and store large quantities of sesquiterpenoids and other compounds while limiting their cytotoxicity. Recently, there were important bio...

COLE TCH, HILGER HH, GOFFINET B, ENROTH J, HE X (2021) SAMMALTEN FYLOGENIA – Maksa-, lehti- ja sarvisammalten systematiikka ja ominaisuudet

The present publication is the first modern catalogue of the liverworts and hornworts of French Polynesia and accepts 161 species of liverworts and 5 species of hornworts. In addition, 40 species are doubtful records of French Polynesia and 45 species are excluded. The checklist is mainly based on a compilation of published records; a few unpublish...

Sexual differentiation in bryophytes occurs in the dominant gametophytic generation. Over half of bryophytes are dioicous, and this pattern in liverworts is even more profound as over 70% of species are dioicous. However, the evolutionary mechanisms leading to the prevalence of dioicy and the shifts of sexual systems between dioicy and monoicy have...

Biodiversity is eroding at unprecedented rates due to human activity. Species' trajectories towards extinction are shaped by multiple factors, including life-history traits as well as human pressures. Previous studies linking these factors to extinction risk have been narrow in their taxonomic and geographic scope, thus limiting the ability for ide...

Stam Å, He X., Kaasalainen U., Toivonen M., Enroth J., Räsänen M. & Rikkinen J. 2020: Epiphyte colonisation of fog nets in montane forests of the Taita Hills, Kenya.-Ann. Bot. Fennici 57: 227-238. The dispersal ecology of tropical non-vascular epiphytes has rarely been experimentally investigated. We studied epiphyte colonisation on 1 × 1 m polyeth...

Western Melanesia is the richest area worldwide in terms of species diversity in Lejeuneaceae subfamily Ptychanthoideae. This paper provides keys, descriptions and illustrations for all the genera and species recorded from Western Melanesia. The nomenclature of the species is in part outdated and has been corrected in this pdf version (as of Decemb...

The taxonomy of Herbertus aduncus (Dicks.) Gray has a chaotic history and taxonomic ambiguities of the species have remained to this day. In order to delimit H. aduncus and solve taxonomic problems morphological variation of this species and the closely related H. borealis Crundw., H. buchii Juslén, H. delavayi (Steph.) Steph., H. dicranus (Taylor...

Comparative genomics of the embryophytes (land plants) provide basis to understand their divergence and adaptation to the terrestrial environment. The focus of the genome sequencing has been on the understanding of the patterns of genetic development and adaptation, particularly of the crop and some model species. Rapidly increased transcriptome se...

Solanaceae are a particularly interesting angiosperm family, not only because they include many major crop species such as potato, tomato, eggplant, pepper, tobacco and ornamentals like petunias, but also because numerous species are used as biological models. They have been widely used for understanding crop genetics and plant genome evolution in...

Based on previous literature and our own collections, we list 285 bryophyte species (142 liverworts, 143 mosses) from the Taita Hills region (including Mt. Kasigau and Maktau Hill) in SE Kenya. New records for Kenya include the liverworts Archilejeunea elobulata Steph., Bazzania nitida (F. Weber) Grolle, Cololejeunea grossepapillosa (Horik.) N. Kit...

Transcriptomics plays a central role in understanding the genetic underpinning of post-transcriptional regulation. In recent years, transcriptomics has not only acted as a model for unraveling post-transcriptional regulatory events but has also provided a basis for species-level comparative transcriptomics. In the absence of genomic data, transcrip...

Agricultural productivity is a growing concern and several key genomes have been sequenced with the goal of exploring how traits of genomic adaptation could be transferred to cultivated crops, this having been the cornerstone of crop research. Much of the focus has been on crop species that have been directly used to address human needs, considerin...

LASTZ dot-plot comparison among Asteraceae complete plastid genome sequences.

Inverted repeat plot of 30 Asteraceae chloroplast genomes.

Genes having an intron in the Ambrosia trifida plastid genome, and the length of the exons and introns.

Phylogenetic tree of Asteraceae based on the analysis of fifty protein coding genes with parsimony used as an optimality criterion.

List of the sequenced plastomes used for the phylogenomic analysis.

Intronic reads per kb per million mapped (RPKM) across the herbicide treatments in the plastid genome of giant ragweed (Ambrosia trifida).

Evaluation of the skewness and compositional heterogeneity across the combined and partition-specific variations of the long genes ndhD, ndhH, psaA, psaB, psbA, psbB, psbC, and rbcL.

Summary of the aligned transcriptomics reads.

List of genes in the chloroplast genome of Ambrosia trifida.

We report the first plastome sequence of giant ragweed (Ambrosia trifida); with this new genome information, we assessed phylogeny of Asteraceae and the transcriptional profiling against glyphosate resistance in giant ragweed. Assembly and genic features show a normal angiosperm quadripartite plastome structure with no signatures of deviation in ge...

Five species of mosses (Bryophyta: Oncophorus demetrii, Oncophorus integerrimus, Oxyrrhynchium speciosum, Sphagnum divinum and Sphagnum medium) and one of liverworts (Marchantiophyta: Kurzia trichoclados) are presented as new for Finland. Seligeria calcarea and Seligeria pusilla, previously thought to be regionally extinct from Finland, are reporte...

Plastomes play an important role in maintaining plant viability through dynamic remodeling of electron transport across the thylakoid membrane. With few exceptions, land plant plastomes are structurally conserved while green algal plastomes are relatively more dynamic in gene order and content. These features provide clues toward understanding not...

Taxonomy is a scientific discipline that has provided the universal naming and classification system of biodiversity for centuries and continues effectively to accommodate new knowledge. A recent publication by Garnett and Christidis [1] expressed concerns regarding the difficulty that taxonomic changes represent for conservation efforts and propos...

The sporophytes of the genus Herbertus are rare or completely absent in some areas. The first discovery of the sporophyte of Herbertus in europe, on H. sendtneri from a herbarium specimen collected in austria in 1851, is reported here. We report that finely papillose spores characterize Herbertus species which have originated in the Northern Hemisp...

The leafy liverwort genus Herbertus exhibits considerably variable morphology and widely disjunct distributions in both hemispheres. Here, the biogeographic history of the genus and its phylogenetic relationships with the focus on the taxonomically difficult, northern hemispheric disjunct species, were investigated. We conducted a time-calibrated,...

Three species of mosses (Bryophyta: Philonotis yezoana, Protobryum bryoides, Rhynchostegium murale) and one of liverworts (Marchantiophyta: Moerckia flotoviana) are presented new for Finland. Timmia megapolitana, previously thought to be regionally extinct, is reported to being found again. New records in biogeographical provinces for 82 species of...

A working checklist of accepted taxa worldwide is vital in achieving the goal of developing an online flora of all known plants by 2020 as part of the Global Strategy for Plant Conservation. We here present the first-ever worldwide checklist for liverworts (Marchantiophyta) and hornworts (Anthocerotophyta) that includes 7486 species in 398 genera r...

The family Schistochilaceae Buch (1928: 9) consists of approximately 80 extant species. More than two-thirds of its diversity occurs in temperate to subantarctic South America and Australasia, and nearly one third in the tropical mountain forests of Southeast Asia and the western Pacific Islands. The plants of Schistochilaceae are usually robust an...

The liverworts are the first diverging land plant group with origins in the Ordovician. The family Schistochilaceae exhibits diverse morphology and widely disjunct geographic ranges within the Southern Hemisphere. The family has been presented as a classic example of Gondwanan biogeographic distribution, with extant species ranges resulting from vi...

The herbarium accessions amount to 16,777 specimens, including 5,605 phanerogams and pteridophytes, 2,573 specimens of bryophytes and algae, 3,448 specimens of fungi and 5,151 specimens of lichens. Some details of noteworthy accessions are given here.

The monotypic Pleurocladopsis, endemic to Chile, was established by Schuster in 1964 based on an earlier poorly known species Cephalozia (?) simulans C. Massal. The phylogenetic position of Pleurocladopsis simulans had been considered uncertain until it was placed in the family Schistochilaceae on account of the gynoecial and sporophytic characters...

Oil bodies of liverworts are intracellular organelles bounded by a single unit membrane containing lipophilic globules suspended in a proteinaceous matrix. They are a prominent and highly distinctive organelle uniquely found in liverworts. Although they have been widely used in taxonomy and chemosystematics, and many of their secondary metabolites...

The herbarium accessions amount to 17,308 specimens, including 6,599 specimens of phanerogams and pteridophytes, 1,708 specimens of bryophytes and algae, 9,000 specimens of fungi (including lichens), and 1 specimen of zoocecidia. Some details of noteworthy accessions are given here.

The herbarium accessions amount to 20 395 specimens, including 5 940 phanerogams and pteridophytes, 1 929 specimens of bryophytes and algae, 12 517 specimens of fungi (incl. lichens), and 1 specimen of zoocecidia. Some details of noteworthy accessions are given here.

The herbarium accessions amount to 21,068 specimens, including 3,993 specimens of phanerogams and pteridophytes, 2,558 of bryophytes, 42 of algae, and 14,475 of fungi (incl. lichens). Some details of noteworthy accessions are given here.

DNA sequence results show that Amphilophocolea, a monotypic genus endemic to New Zealand, is nested within Heteroscyphus. A morphological examination of specimens that agree with the protologue shows it to be identical to Heteroscyphus knightii. Heteroscyphus cymbaliferus in the DNA sequence analyses is sister to the clade consisting of the rest of...

The monotypic genus Perssoniella with P. vitreocincta Herzog, endemic to New Caledonia, possesses a series of unique morphological characters and it has been assumed that the genus, assigned to the family Perssoniellaceae and suborder Perssoniellineae, is very isolated but sister to the family Schistochilaceae. The systematic identity of Perssoniel...

Cyanolophocolea echinella R.M.Schust. is an intriguing species, possessing some character states characteristic of the genus Chiloscyphus, such as the ability to produce both male and female gametangia on leading shoots, while having other features that are generic characters of Heteroscyphus, namely presence of gametangia on short, abbreviated lat...

A new liverwort species from Western Nelson Ecological Province of New Zealand known from a single sterile specimen is described. It is unusual in having well-developed stem paraphyllia, and the leaves and underleaves are divided with three levels of ciliate division in a pinnate manner. This morphology suggested membership of Trichocoleaceae or Tr...

Early stages of leaf development were studied in Schistochila appendiculata (Hook.) Dumort. ex Trevis., S. nobilis (Hook.) Trevis., Pachyschistochila subhyalina (R. M. Schust.) R. M. Schust. & J. J. Engel, and Gottschea conchophylla (E. A. Hodgs. & Allison) Grolle & Zijlstra, using transverse microtome sections. Like other groups of leafy liverwort...

Within the leafy liverworts, the evolution of the perigynium, the stem-derived structure that protects the developing sporophytes, has been understood as merely a parallelism, and families that have this feature have been placed to various suborders. The present study suggests a single origin of the perigynium in the leafy liverworts and the presen...

The phylogenetic relationships of liverworts were reconstructed using the sequence data of four genome regions including rbcL, rps4 and trnL-F of the chloroplast and 26S large subunit ribosomal rRNA gene of the nucleus, and 90 characters of morphological, ultrastructural and developmental aspects. The taxa sampled consisted of 159 species including...

This study examines the diversity and ecology of myxomycetes on seven native tree species in Hunan Province, south-central China. All the trees are being cultivated within less strict- ly protected parts of Badagongshan National Nature Reserve and similar forest reserves. Community data were collected for epiphytic bryophytes and lichens and cortic...

He-Nygrén, X. & Piippo, S. 2003: Phylogenetic relationships of the generic complex Chiloscy-phus –Lophocolea –Heteroscyphus (Geocalycaceae, Hepaticae): Insights from three chloroplast genes and morphology. — Ann. Bot. Fennici 40: 317–329. We attempted to reconstruct the phylogeny of the generic complex Chiloscyphus– Lophocolea–Heteroscyphus (Geocal...

We attempted to reconstruct the phylogeny of the generic complex Chiloscyphus-Lophocolea-Heteroscyphus (Geocalycaceae, Hepaticae) by using sequence data from three regions of the chloroplast genome, rbcL, trnL-trnF and psbT-psbH, and 17 morphological characters, and to explore character evolution. Twenty-one taxa exemplars were selected and 2141 ch...

The primary aim of this study was to investigate and document the hepatic and hornwort floras of Singapore. The secondary aim was to compare and understand the changes in the species composition through time in a highly urbanized island environment like Singapore. As presented, a total of 74 species in 37 genera of Hepaticae and Anthocerotae are kn...

The oil bodies of 22 species belonging to 18 hepatic genera from Singapore are described, photographed, and discussed. Oil bodies of 11 species are described for the first time.

Forty-nine species of Lejeuneaceae subfamily Ptychanthoideae are known from Western Melanesia. They belong to 12 genera: Acrolejeunea (Spruce) Schiffn. (5 species), Archilejeunea (Spruce) Schiffn. (2), Caudalejeunea (Steph.) Schiffn. (3), Dendrolejeunea (Spruce) Lacout. (1), Lopholejeunea (Spruce) Schiffn. (12), Mastigolejeunea (Spruce) Schiffn. (8...

He, X.-L. & Grolle, R. 2001: Xylolejeunea, a new genus of the Lejeuneaceae (Hepaticae) from the Neotropics, Madagascar and the Seychelles. — Ann. Bot. Fennici 38: 25–44. The genus Trachylejeunea (Spruce) Schiffn. is reviewed and its subgenus Hygrolejeu-neopsis R.M. Schust. placed in synonymy of Xylolejeunea X.-L. He & Grolle gen. nov. (Lejeuneaceae...

Diss -- Helsingin yliopisto.

The hepatics collected on several excursions in the Yunnan Province of China contain 31 species not previously recorded for Yunnan. Asterella leptophylla (Mont.) Grolle, Frullania benjaminiana Inoue, F. gemmulosa Hatt. & Thaith., Lophozia igiana Hatt., and Plagiochila poeltii Inoue & Grolle are recorded for the first time in China. The collections...

On the basis of this study, Pycnolejeunea spinistipula Mizut. is transferred to Leptolejeunea (Spruce) Schiffn., as Leptolejeunea spinistipula (Mizut). He and Lepidolejeunea queenslandica Thiers is transferred to Rectolejeunea Evans, as Rectolejeunea queenslandica (Thiers) He. Complete descriptions and illustrations are provided.

A collection of bryophytes by a Finnish-Chinese expedition in northwestern Sichuan in September 1991 includes 50 species of liverworts. The major collecting areas were in Minshan Range in Songpan and Nanping Counties. A smaller collection comes from the valley of the River Suo-Mo North of Qiong-Lai Range in Ma-Er-Kang County and from Hongyuan Count...

This paper reviews the history and the current state of the study on the Lejeuneaceae in China. The first species of from China was reported by Frans Stephani in 1894 Acrolejeunea cordistipula Steph (= Trocholejeunea infuscata(Mitt.) Verd.). Since then, the Chinese Lejeuneaceae flora has been studied predominantly by European bryologists. Until 192...

Pycnolejeunea malaccensis Hoffm. and P. renneri Hoffm. are transferred to Cheilolejeunea (Spruce) Schiffn. and placed in subgenus Xenolejeunea Schust. section Meyenianae Thiers. Complete descriptions and illustrations are provided.

The taxonomic importance of stone lobule characters in the Lejeuneaceae is reviewed and clarified in this paper: (1) The free margin of lobule is defined as the margin between the stem trod the distal end of the keel. The number of the cells along the free margin is variable. This is especially true in the genera with distal hyaline papilla, in whi...

Pycnolejeunea surinamensis Steph. is transferred to Cheilolejeunea (Spruce) Schiffn. as C. surinamensis (Steph.) He; Rectolejeunea maxonii Evans is transferred to Lejeunea Libert as L. maxonii (Evans) He, and Pycnolejeunea miradorensis Steph. is synonymized with Lejeunea maxonii; Pycnolejeunea flagellifera S. Arnell is synonymized with Recto-lejeun...