Hopea hainanensis

Merr. & Chun · species

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Plantae/Tracheophyta/Magnoliopsida/Malvales/Dipterocarpaceae/Hopea

At a glance

Occurrence records22

Data sources11

Biological traits37

DNA specimens7

eDNA detections5

Sources11 archives

Databases and archives Hopea hainanensis's data was compiled from.

WikipediaWikimedia Foundation4 languages↗

BioWikiNetmultilingual Wikipediamultilingual↗

GBIFGlobal Biodiversity Information Facility22 records↗

ENAEuropean Nucleotide Archive · EMBL-EBI5 eDNA detections↗

BOLD SystemsCentre for Biodiversity Genomics7 specimens↗

NCBIUS National Library of Medicinesequences↗

LOTUSNatural Products (Wikidata)compounds↗

NPASSNat. Product Activity & Species Sourcecompounds↗

Open Tree of LifeOpenTreephylogeny backbone↗

GoaTGenomes on a Tree · Sangergenome & karyotype↗

WikidataWikimedia Foundationstructured facts↗

On this page7 sections

Every layer below draws on the sources above — open one to explore it, or use ← → to move between tabs.

NarrativeWikipediaarticle

Traits & measurements3 literature sources37 traits

Chemical compositionLOTUS · NPASS21 compounds

Occurrence & distributionGBIF22 records

Environmental DNA1 datasets · 2 countries5 detections

DNA & barcodingBOLD · NCBI7 specimens

Genome at a glanceGoaT≈434 Mbp

01Narrative

Hopea hainanensis is a species of tree in the family Dipterocarpaceae. It is found in Hainan Island of China and northern Vietnam. Hopea hainanensis produces the acetylcholinesterase inhibitor Hopeahainol A.

No narrative description available for this taxon yet.

02Traits & measurements

SourcesWCVPGIFTTRY

Size & morphology14

Fruit length60 mm

Fruit length max70 mm

Fruit length min50 mm

Fruit width25 mm

Fruit width max25 mm

Fruit width min25 mm

Inflorescence length max10 cm

Inflorescence length min3 cm

Leaf length110 mm

Leaf length max140 mm

Leaf length min80 mm

Leaf width max80 mm

Leaf width min50 mm

Plant height20 m

Life cycle & reproduction6

Deciduousnessevergreen

Life formtree

Life spanperennial

Pollination modebiotic

Pollination syndromeinsect

Raunkiær life formphanerophyte

Diet & foraging1

Parasiteindependent

Habitat & environment10

Aquaticterrestrial

Climatewet tropical

Climberself-supporting

Elevation max700 m

Elevation mean700 m

Elevation min700 m

Epiphyteterrestrial

Growth formtree

Mycorrhiza typeectomycorrhizal

Woodinesswoody

Physiology & chemistry6

Leaf n15.36 mg/g

Leaf p1.01 mg/g

Nitrogen fixingnon_nitrogen_fixer

Photosynthetic pathwayC3

Specific leaf area (SLA)10.2 mm²/mg

Wood density890 mg/cm³

⚠ sources differ — TRY: 890 mg/cm³ · GIFT: 1 000 mg/cm³

03Chemical composition21 compounds

Compounds documented for Hopea hainanensis across natural-product and food-composition databases — not just the ~150 nutrients on a classic label ("nutritional dark matter").

Compound class profile5 classes

Oligomeric stibenes10

Benzophenones3

Isocomane sesquiterpenoids2

Monomeric stilbenes1

Illudane sesquiterpenoids1

Documented compounds21 total

Tissue Source Quantified only

Compound	Amount	Source
(-)-Isocomene	present	NPASS
(-)-Modhephene	present	NPASS
(1R,8R,9R,16R)-8,16-bis(4-hydroxyphenyl)-9-[(1S,8S,9S,16S)-4,6,12-trihydroxy-8,16-bis(4-hydroxyphenyl)-15-oxatetracyclo[8.6.1.02,7.014,17]heptadeca-2(7),3,5,10(17),11,13-hexaen-9-yl]-15-oxatetracyclo[8.6.1.02,7.014,17]heptadeca-2(7),3,5,10(17),11,13-hexaene-4,6,12-triol	present	LOTUS
(1R,8R,9R,16S)-8,16-bis(4-hydroxyphenyl)-9-[(1S,8S,9R,16R)-4,6,12-trihydroxy-8,16-bis(4-hydroxyphenyl)-15-oxatetracyclo[8.6.1.02,7.014,17]heptadeca-2(7),3,5,10(17),11,13-hexaen-9-yl]-15-oxatetracyclo[8.6.1.02,7.014,17]heptadeca-2(7),3,5,10(17),11,13-hexaene-4,6,12-triol	present	LOTUS
(1R,8R,9S,16S)-8,16-bis(4-hydroxyphenyl)-9-[(1S,8S,9S,16R)-4,6,12-trihydroxy-8,16-bis(4-hydroxyphenyl)-15-oxatetracyclo[8.6.1.02,7.014,17]heptadeca-2(7),3,5,10(17),11,13-hexaen-9-yl]-15-oxatetracyclo[8.6.1.02,7.014,17]heptadeca-2(7),3,5,10(17),11,13-hexaene-4,6,12-triol	present	LOTUS
(1S,2S,5R,8R)-2,5,8-trimethyl-6-methylidenetricyclo[6.3.0.01,5]undecane	present	NPASS
(1S,3S,4S,11R,12S)-6,8,11-trihydroxy-4,12-bis(4-hydroxyphenyl)-2,13-dioxapentacyclo[9.7.0.01,14.03,18.05,10]octadeca-5(10),6,8,14,17-pentaen-16-one	present	LOTUS
(1S,8R,15S)-15-(4-hydroxyphenyl)-8-[(R)-(4-hydroxyphenyl)-methoxymethyl]-14-oxatetracyclo[7.6.1.02,7.013,16]hexadeca-2(7),3,5,9(16),10,12-hexaene-4,6,11-triol	present	LOTUS
(1S,8R,15S)-15-(4-hydroxyphenyl)-8-[(S)-(4-hydroxyphenyl)-methoxymethyl]-14-oxatetracyclo[7.6.1.02,7.013,16]hexadeca-2(7),3,5,9(16),10,12-hexaene-4,6,11-triol	present	LOTUS
(E)-Resveratrol 3-glucoside	present	LOTUS

05DNA & barcoding7 specimens

A DNA barcode is a short, standardised stretch of genes that works like a fingerprint — enough to tell one species from another. Below is the molecular trace Hopea hainanensis has left across the world's sequence archives.

At a glance

DNA specimens7

Marker genes5

GenBank sequences8

eDNA detections5

Countries2

The DNA barcodea real sequence read deposited for this species

ITSMK193030.1 ↗292 bpChina · 2018

ACGT

CCCCCCCCCCCCACGCACGCGGTGTGTGCGGCGGGAGCGGGGGGGCGGATGCTGGTCTCCCGTGCGCGCTCCCCGCTCGCGGTTGGCCCA …

Hopea hainanensis voucher JL2203 internal transcribed spacer 2 and large subunit ribosomal RNA gene, partial sequence

Marker genes sequenced

★ the standard DNA barcode for this group — the short region actually read to tell this species apart. The rest are extra genes sequenced along the way.

★COI-5P★matK★rbcL5★ITS3★ITS2

animal barcodeplant barcodefungal barcode

06Genome at a glanceGoaT

The complete instruction manual Hopea hainanensis carries — its genome. We read it from three angles — how big it is, how the DNA is packed into chromosomes, and how completely it has been sequenced — and explain how to read each value as you go.

Genome sizehow big the whole instruction manual is

Genome size≈434 000 000 bp assembly estimate

Measured in base pairs (bp) — the individual letters of DNA (human ≈ 3.2 Gb, a bacterium a few million). The chart places this genome on a logarithmic scale — each step to the right is ten times bigger — among reference organisms. Across species a bigger genome loosely tracks with larger cells, slower growth and lower-energy lifestyles (powered flight favours small genomes) — yet it does not imply more genes or a more advanced organism (the long-standing C-value paradox).

BACTERIUM Carsonella ruddii0.00016 Gb

FUNGUS0.04 Gb

INSECT0.25 Gb

THIS GENOME Hopea hainanensis0.43 Gb

HUMAN3.2 Gb

WHEAT17 Gb

FERN Tmesipteris160.45 Gb

Sequencing statusassembly quality — how far to trust these numbers

Assembly level tells you how finished the sequence is — from fragmented contigs, through scaffolds, up to a full chromosome-level assembly. BUSCO % estimates completeness: the share of genes expected to be present that were actually found. These describe the data quality, not the organism.

Assembly levelscaffold

08Occurrence & distribution

Record type22 records

Wild obs. + sensor1

Museum / vouchered21

Range

Area of Occupancy AOO52 km²

Wildobservation + sensor

Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.

Coordinate accuracy0% within 1 km

>10 km 1

1 georeferenced

Open the mapobservation + sensor1

Museum / Voucheredphysical evidence

Backed by a physical specimen — a herbarium sheet, sample or voucher held in a collection. “Vouchered” means supported by material evidence, not just an observation.

Coordinate accuracy0% within 1 km

>10 km 1

1 georeferenced · 20 without coordinates

Open the institutions mapphysical evidence21

Wildobservation + sensor

Human sightings and records, or camera-trap / sensor detections — someone (or a device) saw or captured the species in the wild.

10Collections & institutions

Holding institutions6 of 8 geolocated

Institutions and collections holding physical, vouchered specimens of this species — click a row to fly to it on the map.

Institution	Specimens
Beijing, CN	4
Guangzhou, CN	4
Kunming, CN	2
Bronx, US	2
Guilin, CN	2
Cincinnati, US	1
Institute for Agricultural Bacteriology and Fermentation Biologylocation not on record	1
Herbarium of South China Botanical Gardenlocation not on record	1

8 institutions · 17 of 21 vouchered records shown · 2 without an institution code

09Environmental DNA5 detections

Where the DNA of Hopea hainanensis was picked up in samples of water, soil or air — nobody saw the organism, only its DNA left behind. A trace is a clue that the species was near, not a confirmed sighting.

Signal

Detections DNA found5

Studies independent surveys1

Countries2

Signal confidence: weakweighed across independent studies, places & mapped detections

Where its DNA was found

0 of 5 detections have coordinates

Open the map2 countries0

How strong is each trace?

DNA read depthRead counts were not reported for this species — the map shows presence only, not how strong each trace was.

Modelled climatemodelled

−15°Ctemperature across detection sites+40°C

Temperature median25.2 °C 25.2–26.4

Seasonal swing summer↔winter6.00 °C

Max temp (day)29.6 °C 29.1–29.6

Min temp (night)21.3 °C 21.3–22.6

Precipitation164 mm/mo 164–187

Air humidity63.4 % 63.4–66.2

Moisture balance21.8 mm/mo 21.8–54.0

Vapour deficit1,175 Pa 1,158–1,175

Wind speed3.20 m/s 1.90–3.20

Cloud cover64.0 % 54.9–64.0

CHELSA 1981–2010, ~9 km grid, at location & month of 3 detection points · median with p10–p90 · reflects where sampling happened, not only the true niche

How to read this: each dot is one detection of this species' DNA in an environmental sample. The confidence meter weighs how many independent studies and places back up the signal — one detection in one study is a hint; many across several studies is solid. Records dated before 2008 (when eDNA methods began) are treated as likely mislabeled and left off the map.

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