Research Article |
Corresponding author: Hang Sun ( hsun@mail.kib.ac.cn ) Academic editor: Karol Marhold
© 2022 Hong-Liang Chen, Ihsan A. Al-Shehbaz, Li-Shen Qian, Jian-Wen Zhang, Bo Xu, Ti-Cao Zhang, Ji-Pei Yue, Hang Sun.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation:
Chen H-L, Al-Shehbaz IA, Qian L-S, Zhang J-W, Xu B, Zhang T-C, Yue J-P, Sun H (2022) Pulvinatusia (Brassicaceae), a new cushion genus from China and its systematic position. PhytoKeys 189: 9-28. https://doi.org/10.3897/phytokeys.189.77926
|
The new genus and species Pulvinatusia xuegulaensis (Brassicaceae) are described and illustrated. The species is a cushion plant collected from Xuegu La, Xizang, China. Its vegetative parts are most similar to those of Arenaria bryophylla (Caryophyllaceae) co-occurring in the same region, while its leaves and fruits closely resemble those of Xerodraba patagonica (Brassicaceae) from Patagonian Argentina and Chile. Family-level phylogenetic analyses based on both nuclear ITS and plastome revealed that it is a member of the tribe Crucihimalayeae, but the infra-/intergeneric relationships within the tribe are yet to be resolved.
Crucihimalayeae, cushion plants, molecular phylogenetics, new species, Xizang
Cushion plants represent a special life form which usually has character combinations such as short-node intervals, compact branches, solitary flowers or few-flowered racemes, and dome- or mat-shaped cushions. They are common among perennial herbs growing on high-altitude mountains and are thought to be associated with dry and cold environments, such as the high Andes and Patagonia, Himalayas, and New Zealand Alps (
The mustard family (Brassicaceae) is distributed primarily in temperate areas, and many of its species grow on high mountains.
From 2000 to 2019, 58 new species of Brassicaceae from China were described (
Habitat and geographic distribution of Pulvinatusia xuegulaensis A–C alpine meadow habitat, white arrow in A points to the location, white arrows in B and C point to P. xuegulaensis D geographic distribution of P. xuegulaensis, marked with green circle. – Photos: A by Jianwen Zhang B and C by Lishen Qian.
To assess the identity and systematic position of the new taxon, a family-level sampling strategy was adopted. Two datasets, the nuclear ITS and plastomes, were utilized to reconstruct the phylogeny of Brassicaceae. The ITS dataset included 125 species representing 98 genera, of which two accessions of the novelty were newly sequenced. The plastome dataset included 74 species representing 70 genera, of which 16 accessions representing 16 species were newly sequenced. The plastome of Bivonaea lutea (Biv.) DC. was extracted from raw sequencing data SRR8528386 deposited under NCBI BioProject PRJNA518905. Cleome lutea Hook. was chosen as outgroup for ITS and plastome datasets. Both ITS and plastome datasets comprised all 52 currently recognized tribes and nine genera which were not assigned to tribes within Brassicaceae. Data downloaded from GenBank and newly generated for this study are listed in Appendices
Total genomic DNA was extracted from silica gel-dried fresh leaves using the Plant Genomic DNA Kit (Tiangen Biotech, Beijing, China) following the manufacturer’s protocol. The ITS region of one sample of Pulvinatusia xuegulaensis (voucher specimens ZBFC-510) was amplified with the primers ITS-18F as modified by
For the genome skimming data, low-quality reads were filtered, and the clean data were assembled using the GetOrganelle pipeline (
Two datasets, i.e., ITS and 75 plastid protein-coding genes (CDS) extracted from the annotated plastome sequences, were aligned using MAFFT v.7.311 (
Maximum parsimony (MP) and Bayesian Inference (BI) analyses were performed for the ITS dataset, while for the 75 CDS dataset, Maximum Likelihood (ML) method was utilized. No substitutional saturation was detected in 75 CDS dataset, as the index of substitution saturation (Iss) values were both significantly smaller than the critical Iss (Iss.c) values as defined by
With a single pivotal root, very short internode and compact branches, Pulvinatusia xuegulaensis forms a hemispherical (dome) shape (Fig.
The ITS sequences for two accessions of the novelty were 628 bp long. Most of the 16 newly sequenced plastomes were assembled into complete circular genome, except one or two gaps remained in the noncoding regions of three accessions. Gaps information, voucher records, and GenBank accession numbers are provided in Appendix
The aligned ITS matrix was 496 bp long with 261 (52.6%) parsimony-informative sites. The aligned plastome CDS matrix was 61,713 bp long with 7,730 (12.5%) parsimony-informative sites. The resolution of MP analyses was relatively weaker than the outcome of BI analyses, thus only the topologies of Bayesian phylogenetic analysis were shown for ITS dataset. As our aim was to assess the systematic position of Pulvinatusia xuegulaensis, only clades containing this taxon were concerned. In the ITS phylogeny, two accessions of P. xuegulaensis clustered together and embedded in a clade consisting of Crucihimalaya species. This P. xuegulaensis/Crucihimalaya clade is sister to Ladakiella klimesii (Fig.
Pulvinatusia xuegulaensis J.P. Yue, H.L. Chen, Al-Shehbaz & H. Sun.
As indicated above, the monospecific Pulvinatusia xuegulaensis and Ladakiella klimesii are the only members of the tribe Crucihimalayeae with pulvinate and scapose habit and pink to whitish pink petals. The former differs by having simple and fewer forked trichomes, thin papery leaves, solitary flowers, caducous sepals, and glabrous, somewhat flattened fruits. By contrast, L. klimesii has subdendritic trichomes with finely branched rays, thick and fleshy leaves, 2–4-flowered racemes, persistent sepals, and pubescent and terete fruits.
Herbs perennial, cespitose, scapose, pulvinate, with well-developed caudex covered with petioles of previous years. Trichomes simple, mixed with fewer forked stalked ones. Leaves densely imbricate, sessile, thin, papery, densely long ciliate, midvein obscure, adaxially concave to nearly flat, base attenuate, apex subacute. Flowers solitary on short pedicels originating from axils of basal leaves. Fruiting pedicels stout, erect or ascending, often hidden among basal leaves. Sepals oblong, abaxially with trichomes similar to those on leaves. Petals whitish pink to pink; blade obovate to suborbicular, apex obtuse, rounded or rarely acute, claw subequaling or slightly shorter than sepals. Stamens 6, slightly tetradynamous; filaments unappendaged, free; anthers ovate or oblong, obtuse at apex. Ovules 2 or 3 per ovary, placentation parietal. Fruits dehiscent, latiseptate, ovoid to ellipsoid, inflated; valves thick leathery, carinate; replum rounded, visible; septum complete; style obsolete or short and to 0.4 mm long, stout; stigma capitate, entire, unappendaged. Seeds aseriate, wingless, oblong, seed coat smooth, not mucilaginous when wetted; cotyledons accumbent.
The generic name is derived from the pulvinate habit of the plant, and the species epithet from the Xuegu La (Xizang, China), where the type collection was made.
Herbs 0.9–1.6 cm tall; caudex many branched, to 4 mm in diam. Trichomes simple, to 0.6 mm long, mixed with fewer forked stalked ones. Leaves densely imbricate, (3.5–) 4.0–4.2 (–4.7) × 0.7–1 mm, thin, papery, long ciliate on both sides and margin. Flowers solitary on short pedicels originating from axils of basal leaves. Fruiting pedicels stout, 4.5–6 mm long, often hidden among basal leaves. Sepals oblong, 1–2 × ca. 1 mm. Petals whitish pink or pink; obovate to suborbicular, 3–3.5 × 2.5–3 mm, claw 2.5–3.4 mm long. Filaments 1.5–2 mm long; anthers 0.3–0.5 mm long. Ovules 2 or 3 per ovary. Fruit ovoid to ellipsoid, 1.6–1.9 × 0.8–1 mm; valves thick leathery, inflated, style 0.2–0.4 mm long. Seeds 1–1.5 × 0.7–0.9 mm, seed coat smooth, not mucilaginous when wetted; cotyledons accumbent.
China. Xizang: Xuegu La, alpine meadow, sandy area, 29°55' N, 90°7' E, 5300 m, 4 Aug. 2019, ZBFC-510 (holotype, KUN!; isotype, KUN!). Paratype. China. Xizang: Xuegu La, alpine gravel slopes, sandy area, 29°54' N, 90°7' E, 5407 m, 28 Aug. 2015, ZJW3454 (KUN).
Pulvinatusia xuegulaensis displays typical cushion-plants morphology, which belongs to the dome type of Aubert et al.’s category (2014). Many ball-shaped individuals grow together along alpine slopes and form a community with spectacular landscape (Fig.
Tribal assignments and comparisons of morphological characters of Pulvinatusia xuegulaensis, Ladakiella klimesii and Xerodraba patagonica.
Pulvinatusia xuegulaensis | Ladakiella klimesii | Xerodraba patagonica | |
---|---|---|---|
Tribal assignments | Crucihimalayeae | Crucihimalayeae | Eudemeae |
Habit | perennial, pulvinate | perennial, pulvinate | perennial, pulvinate |
Type of cushions | hemispherical (dome shaped) cushion | hemispherical (dome shaped) cushion | low cushion |
Compactness | compact, hard | intermediate | compact, hard |
Leaf arrangement | imbricate | rosulate | imbricate |
Leaf shape | linear-lanceolate | obovate to spatulate | oblong-ovate |
Leaf texture | thin, papery | thickened, fleshy | thickened, fleshy |
Flower | solitary | raceme 2–4-flowered | solitary |
Petal color | whitish pink, pink | pink throughout or white with pink claws | white to pale yellow |
Fruit | ovoid to ellipsoid silicle | ovoid silicle | ellipsoid silicle |
Fruiting pedicels | stout | slender | slender |
Fruit valves | thick leathery, carinate, glabrous | papery, not veined, densely tomentose outside | leathery, carinate, glabrous |
In both nuclear and chloroplast phylogenies, Pulvinatusia xuegulaensis fell in a clade consisting of Ladakiella and Crucihimalaya species, indicating that the new taxon is phylogenetically close to these two genera, which had been assigned to the tribe Crucihimalayeae by
The discovery of Pulvinatusia xuegulaensis added one new genus and species to the cushion plant list compiled by
This study was supported by the Second Tibetan Plateau Scientific Expedition and Research Program (2019QZKK0502), the Key Projects of the Joint Fund of the National Natural Science Foundation of China (U1802232), the Strategic Priority Research Program of Chinese Academy of Sciences (XDA20050203), the National Natural Science Foundation of China (32000160, 32060237) and the Yunnan Ten-thousand Talents Plan Young & Elite Talent Project (YNWR-QNBJ-2019-154).
Taxon and GenBank accession numbers for the ITS and plastid genome sequences downloaded from GenBank and used in this study.
ITS:Outgroup: Cleome lutea Hook. (AF137588); Ingroups: Aethionemeae: Aethionema saxatile (L.) W.T. Aiton (GQ284853), Alysseae: Clypeola lappacea Boiss. (EF514645), Odontarrhena chalcidica (Janka) Španiel & al. (GQ284877), Alyssopsideae: Alyssopsis mollis (Jacq.) O. E. Schulz (GQ424523), Olimarabidopsis pumila (Stephan) Al-Shehbaz, O’Kane & R. A. Price (AY662277), Anastaticeae: Anastatica hierochuntica L. (GQ424524), Cithareloma lehmannii Bunge (DQ357528), Anchonieae: Sterigmostemum billardieri (DC.) D.A. German (DQ357512), Sterigmostemum sulphureum (Banks & Sol.) Bornm. (KJ663764), Aphragmeae: Aphragmus nepalensis (H. Hara) Al-Shehbaz (DQ165335), Aphragmus oxycarpus (Hook. f. & Thomson) Jafri (DQ165337), Arabideae: Arabis alpina L. (DQ060111), Baimashania pulvinata Al-Shehbaz (FJ187969), Baimashania wangii Al-Shehbaz (JQ919842), Asteae: Asta schaffneri subsp. pringlei (O.E. Schulz) Al-Shehbaz (HQ541169), Asta schaffneri subsp. stricta (Rollins) Al-Shehbaz (HQ541171), Biscutelleae: Biscutella laevigata L. (KF022694), Megadenia pygmaea Maxim. (KX943555), Bivonaeeae: Bivonaea lutea (Biv.) DC. (HQ327490), Boechereae: Boechera fendleri (S. Watson) W. A. Weber (JX146958), Borodinia macrophylla (Turcz.) O. E. Schulz (EU274865), Brassiceae: Brassica balearica Pers. (AF263402), Raphanus sativus L. (FJ980407), Buniadeae: Bunias erucago L. (GQ497885), Calepineae: Calepina irregularis (Asso) Thell. (DQ249822), Goldbachia laevigata (M. Bieb.) DC. (DQ357546), Camelineae: Camelina sativa (L.) Crantz (KJ623504), Capsella thracica Velen. (HE575243), Cardamineae: Cardamine occulta Hornem. (KX244391), Nasturtium officinale W. T. Aiton (AY254531), Chorisporeae: Chorispora tenella (Pall.) DC. (DQ249866), Diptychocarpus strictus (Fisch. ex M. Bieb.) Trautv. (DQ357534), Cochlearieae: Cochlearia officinalis L. (HQ268642), Ionopsidium abulense (Pau) Rothm. (HQ268661), Coluteocarpeae: Noccaea thlaspidioides (Pall.) F. K. Mey. (DQ249838), Noccaea vesicaria (L.) Al-Shehbaz (GQ497857), Conringieae: Conringia clavata Boiss. (AY722505), Zuvanda exacoides (DC.) Askerova (DQ357607), Cremolobeae: Cremolobus chilensis (Lag. ex DC.) DC. (GQ424530), Cremolobus rhomboideus Hook. (KF662762), Crucihimalayeae: Crucihimalaya bursifolia (DC.) D. A. German & A. L. Ebel (AF137557), Crucihimalaya himalaica (Edgew.) Al-Shehbaz, O’Kane & R. A. Price (AY662283), Crucihimalaya kneuckeri (Bornm.) Al-Shehbaz, O’Kane & R. A. Price (AF137550), Crucihimalaya mollissima (C.A. Mey.) Al-Shehbaz, O’Kane & R. A. Price (DQ249845), Crucihimalaya lasiocarpa (Hook.f. & Thomson) Al-Shehbaz, O’Kane & R. A. Price (AF137556), Crucihimalaya rupicola (Krylov) A. L. Ebel & D. A. German (FJ187923), Crucihimalaya stricta (Cambess.) Al-Shehbaz, O’Kane & R. A. Price (AF137554), Crucihimalaya tenuisiliqua (Rech.f. & Köie) Al-Shehbaz, D. A. German & M. A. Koch (KF547304), Crucihimalaya wallichii (Hook.f. & Thomson) Al-Shehbaz, O’Kane & R. A. Price (AY662282), Ladakiella klimesii (Al-Shehbaz) D. A. German & Al-Shehbaz (EF514608), Descurainieae: Descurainia sophia (L.) Webb ex Prantl (AF205587), Ianhedgea minutiflora (Hook.f. & Thomson) Al-Shehbaz & O’Kane (HQ896625), Dontostemoneae: Clausia trichosepala (Turcz.) F. Dvořák (LK021263), Dontostemon senilis Maxim. (LK021244), Erysimeae: Erysimum majellense Polatschek (KJ418042); Erysimum serpentinicum Polatschek (KJ418068), Euclidieae: Braya scharnhorstii Regel & Schmalh. (MH23787), Leiospora pamirica (Botsch. & Vved.) Botsch. & Pachom. (MH237698), Pycnoplinthus uniflora (Hook. f. & Thomson) O. E. Schulz (MH237701), Solms-laubachia pulcherrima Muschl. (MH237723), Strigosella africana (L.) Botsch. (MH237728), Eudemeae: Dactylocardamum imbricatifolium Al-Shehbaz (KM376257), Eudema nubigena Humb. & Bonpl. (KC174370), Onuris hatcheriana (Gilg ex Macloskie) Gilg & Muschl. (KM376239), Xerodraba lycopodioides (Speg.) Skottsb. (KM376221), Eutremeae: Eutrema japonicum (Miq.) Koidz. (JN387782), Eutrema scapiflorum (Hook. f. & Thomson) Al-Shehbaz, G. Q. Hao & J. Q. Liu (DQ518398), Halimolobeae: Halimolobos jaegeri (Munz) Rollins (AF137567), Pennellia longifolia (Benth.) Rollins (AF307627), Heliophileae: Heliophila coronopifolia L. (DQ249846), Heliophila pusilla L. f. (LN589686), Hesperideae: Hesperis sibirica L. (DQ357549), Hesperis isatidea (Boiss.) D.A. German & Al-Shehbaz (GQ497882), Hillielleae: Hilliella rivulorum (Dunn) Y. H. Zhang & H. W. Li (KX244376), Hilliella sinuata (K.C. Kuan) Y. H. Zhang & H. W. Li (KX244377), Iberideae: Iberis saxatilis L. (LN589689), Iberis umbellata L. (AY237921), Isatideae: Isatis tinctoria L. (GQ131323), Myagrum perfoliatum L. (GQ424547), Kernereae: Kernera saxatilis subsp. boissieri (Reut.) Nyman (AJ440314), Rhizobotrya alpina Tausch (AJ440315), Lepidieae: Delpinophytum patagonicum (Speg.) Speg. (KM376225), Lepidium aretioides (Hedge) Al-Shehbaz (GQ497859), Lepidium papilliferum (L.F. Hend.) A. Nelson & J.F. Macbr. (JF541495), Lepidium mendocinensis (Hauman) Al-Shehbaz (GQ497890), Malcolmieae: Malcolmia maritima (L.) W. T. Aiton (AM905723), Malcolmia orsiniana (Ten.) Ten. (DQ357560), Megacarpaeeae: Megacarpaea delavayi Franch. (KX244385), Pugionium dolabratum Maxim. (JF978171), Microlepidieae: Blennodia pterosperma (J.M. Black) J. M. Black (DQ357519), Pachycladon radicata (Hook. f.) Heenan & A. D. Mitch. (EF015693), Scambopus curvipes (F. Muell.) O. E. Schulz (JX630167), Notothlaspideae: Notothlaspi australe Hook. f. (AF100689), Notothlaspi rosulatum Hook. f. (AF100690), Oreophytoneae: Murbeckiella huetii (Boiss.) Rothm. (GQ424546), Oreophyton falcatum (E. Fourn.) O. E. Schulz (GQ424549), Physarieae: Nerisyrenia linearifolia (S. Watson) Greene (AF055200), Physaria occidentalis (S. Watson) O’Kane & Al-Shehbaz (KU975797), Schizopetaleae: Mathewsia foliosa Hook. & Arn. (KC174387), Schizopetalon brachycarpum Al-Shehbaz (KC174407), Scoliaxoneae: Scoliaxon mexicanus (S. Watson) Payson (HQ541175), Shehbazieae: Shehbazia tibetica (Maxim.) D. A. German (LN713855), Sisymbrieae: Sisymbrium officinale (L.) Scop. (AF531565), Sisymbrium orientale L. (AF531592), Smelowskieae: Smelowskia borealis (Greene) W. H. Drury & Rollins (AY230571), Smelowskia calycina (Stephan ex Willd.) C. A. Mey. (AY230604), Stevenieae: Macropodium pterospermum F. Schmidt (GU182055), Stevenia cheiranthoides DC. (GU182059), Thelypodieae: Chaunanthus acuminatus (Rollins) R. A. Price & Al-Shehbaz (GQ497855), Thelypodium laciniatum (Hook.) Endl. (KJ953749), Thlaspideae: Didymophysa fedtschenkoana Regel (EF514647), Thlaspi arvense L. (KT220620), Turritideae: Turritis glabra L. (DQ518389), Turritis laxa (Sm.) Hayek (KF547126), Yinshanieae: Yinshania henryi (Oliv.) Y. H. Zhang (KX244390), Yinshania zayuensis Y. H. Zhang (KX244395), Unassigned genera:Asperuginoides axillaris (Boiss. & Hohen.) Rauschert (EF514626), Atacama nivea (Phil.) Toro, Mort & Al-Shehbaz (KC174381), Chamira circaeoides (L.f.) Zahlbr. (AJ862719, AJ862720), Dipoma iberideum Franch. (GQ497861), Fourraea alpina (L.) Greuter & Burdet (DQ518395), Hemilophia sessilifolia Al-Shehbaz, Arai & H. Ohba (KT762595), Idahoa scapigera (Hook.) A. Nelson & J. F. Macbr. (MF964066), Schrenkiella parvula (Schrenk) D. A. German & Al-Shehbaz (AF137579), Subularia aquatica L. (MF963829).
Plastid genome: Outgroup: Cleome lutea Hook. (MK637687), Ingroups: Aethionemeae: Aethionema saxatile (L.) W. T. Aiton (MK637661), Alysseae: Alyssum turkestanicum Regel & Schmalh. (KY498535), Alyssopsideae: Alyssopsis mollis (Jacq.) O. E. Schulz (MK637657), Anastaticeae: Anastatica hierochuntica L. (KY912021), Anchonieae: Sterigmostemum violaceum (Botsch.) H. L. Yang (MK637808), Asteae: Asta schaffneri (S. Watson) O. E. Schulz (MK637662), Biscutelleae: Biscutella lyrata L. (MH359179), Bivonaeeae: Bivonaea lutea (Biv.) DC. (SRR8528386), Boechereae: Boechera angustifolia (Nutt.) Dorn (MK637673), Brassiceae: Brassica napus L. (GQ861354), Buniadeae: Bunias erucago L. (LN877377), Calepineae: Calepina irregularis (Asso) Thell. (MK637682), Camelineae: Camelina sativa (L.) Crantz (LN877386), Cardamineae: Cardamine resedifolia L. (KJ136822), Chorisporeae: Litwinowia tenuissima (Pall.) Woronow ex Pavlov (MK637744), Cochlearieae: Cochlearia borzaeana (Coman & Nyár.) Pobed. (LN866844), Conringieae: Conringia orientalis (L.) C. Presl (MK637689), Cremolobeae: Cremolobus peruvianus (Lam.) DC. (MK637692), Crucihimalayeae: Crucihimalaya lasiocarpa (Hook. f. & Thomson) Al-Shehbaz, O’Kane & R. A. Price (MK637686), Crucihimalaya wallichii (Hook. f. & Thomson) Al-Shehbaz, O’Kane & R. A. Price (AP009372), Ladakiella klimesii (Al-Shehbaz) D. A. German & Al-Shehbaz (MK637741), Dontostemoneae: Dontostemon micranthus C. A. Mey. (KY912023), Euclidieae: Braya scharnhorstii Regel & Schmalh. (MT845129), Leiospora pamirica (Botsch. & Vved.) Botsch. & Pachom. (MT845148), Pycnoplinthus uniflora (Hook. f. & Thomson) O. E. Schulz (MT845156), Strigosella africana (L.) Botsch. (MT845193), Eudemeae: Brayopsis alpaminae Gilg & Muschl. (MK637666), Solms-laubachia pulcherrima Muschl. (MT845182), Eutremeae: Eutrema heterophyllum (W. W. Sm.) H. Hara (KT270358), Halimolobeae: Halimolobos jaegeri (Munz) Rollins (MK637824), Heliophileae: Heliophila amplexicaulis L. f. (MK637720), Hesperideae: Hesperis sylvestris Crantz (KY912027), Iberideae: Iberis amara L. (MK637733), Isatideae: Isatis tinctoria L. (KT591187), Kernereae: Kernera saxatilis (L.) Sweet (MK637737), Lepidieae: Delpinophytum patagonicum (Speg.) Speg. (K637706), Lepidium virginicum L. (AP009374), Malcolmieae: Malcolmia maritima (L.) W. T. Aiton (MK637751), Megacarpaeeae: Megacarpaea delavayi Franch. (KX886349), Microlepidieae: Arabidella trisecta (F. Muell.) O. E. Schulz (MK637664), Pachycladon cheesmanii Heenan & A. D. Mitch. (JQ806762), Stenopetalum lineare R. Br. ex DC. (MK637800), Notothlaspideae: Notothlaspi australe Hook. f. (MK637761), Oreophytoneae: Oreophyton falcatum (E. Fourn.) O. E. Schulz (MK637767), Physarieae: Physaria pinetorum (Wooton & Standl.) O’Kane & Al-Shehbaz (MK637778), Schizopetaleae: Schizopetalon walkeri Sims (MK637809), Scoliaxoneae: Scoliaxon mexicanus (S. Watson) Payson (MK637801), Shehbazieae: Shehbazia tibetica (Maxim.) D. A. German (MK637829), Thelypodieae: Thelypodium laciniatum (Hook.) Endl. (MK637813), Thlaspideae: Thlaspi arvense L. (KX886351), Unassigned genera:Atacama nivea (Phil.) Toro, Mort & Al-Shehbaz (MK637821), Chamira circaeoides (L. f.) Zahlbr. (MK637678), Dipoma iberideum Franch. (MK637702), Fourraea alpina (L.) Greuter & Burdet (MK637717), Hemilophia sessilifolia Al-Shehbaz, Arai & H. Ohba (MK637730), Idahoa scapigera (Hook.) A. Nelson & J. F. Macbr. (MK637735), Schrenkiella parvula (Schrenk) D. A. German & Al-Shehbaz (KT222186), Subularia aquatica L. (MK637792).
Taxon | Voucher Specimens | Locations | ITS GenBank numbers | Plastome GenBank numbers | Plastome length (bp) | Number of plastome gap |
---|---|---|---|---|---|---|
Aphragmus sp. | YZC250 (KUN) | Daocheng, China | OL800589 | 153022 | ||
Asperuginoides axillaris | SunHang17434 (KUN) | Uzbekistan | OL800590 | 153193 | ||
Crucihimalaya himalaica | No specimen | Batang, China | OL800599 | 155112 | ||
Dendroarabis fruticulosa | YC-XZ019 (KUN) | Altay, China | OL800587 | 152755 | ||
Descurainia sophia | YC-XZ070 (KUN) | Fukang, China | OL800591 | 153829 | ||
Erysimum wardii | YZC202 (KUN) | Lhasa, China | OL800596 | 154466 | ||
Hilliella fumarioides | ZJW4302 (KUN) | Jinhua, China | OL800598 | 154988 | ||
Hilliella yixianensis | ZJW4330 (KUN) | Yixian, China | OL800594 | 154334 | 2 gaps | |
Noccaea yunnanensis | YZC223 (KUN) | Shangrila, China | OL800588 | 152801 | ||
Pulvinatusia xuegulaensis | ZBFC-510 (KUN) | Damxung, China | OL828562 | |||
P. xuegulaensis | ZJW3454 (KUN) | Damxung, China | OL828563 | OL800600 | 155134 | |
Sisymbrium brassiciforme | YC-XZ025 (KUN) | Altay, China | OL800593 | 154238 | ||
Smelowskia tibetica | YC-XZ132 (KUN) | Rutog, China | OL800595 | 154433 | ||
Stevenia canescens | YC-XZ140 (KUN) | Gar, China | OL800597 | 154667 | ||
Turritis glabra | YC-XZ035 (KUN) | Burqin, China | OL800592 | 154196 | 1 gap | |
Yinshania henryi | ZJW4523 (KUN) | Nanchuan, China | OL800602 | 155553 | 1 gap | |
Yinshania zayuensis | ZJW4430 (KUN) | Zhangjiajie, China | OL800601 | 155401 |