Porphyrio porphyrio

Purple swamphen

Maximum lifespan

8.4 yr

AnAge record

mtDNA size

17,020 bp

RefSeq NC_025508.1

GC content

45.19%

Whole genome

Non-coding

1,568 bp

D-loop 1,506 bp

Where Purple swamphen sits among 2,335 species

Whole-genome GC content against maximum lifespan. Purple swamphen has the 1,710th longest lifespan of them.

This species
Other birds
Other classes

Plot other mtDNA features with this species highlighted

Base composition

Whole genome17,020 bp

GC skew (G − C) / (G + C): −0.398
AT skew (A − T) / (A + T): +0.172

Life history

Maximum lifespan: 8.4 years
Adult weight: 850 g
Male sexual maturity: 3 years

Lifespan from AnAge · AnAge record · other traits from AnAge build 15 (HAGRID 00723)

About this record

Lifespan source: AnAge build 15
Based on: an animal in the wild
Data quality: acceptable, small sample
Licence: Free to use, subject to the Human Ageing Genomic Resources conditions of use
Status: New in build 2
In the database since: build 2 (2026-11-13)

Every change against the 2015 build is in the changelog download.

Composition by region

Reference (L) strand as deposited in RefSeq

Whole genome17,020 bp

Protein-coding11,346 bp

12S rRNA981 bp

16S rRNA1,593 bp

All tRNA1,543 bp

D-loop1,506 bp

Genes and regions

Select a column to sort; select a gene to compare it across species

Base composition of Porphyrio porphyrio genes

ND1NADH dehydrogenase subunit 1	960 bp	29.3%	25.4%	13.2%	32.1%	45.31%	−0.416	+0.070
ND2NADH dehydrogenase subunit 2	1,040 bp	33.0%	22.2%	9.6%	35.2%	44.81%	−0.571	+0.195
COX1Cytochrome c oxidase subunit I	1,551 bp	28.8%	24.3%	16.4%	30.6%	46.94%	−0.302	+0.084
COX2Cytochrome c oxidase subunit II	684 bp	31.4%	23.2%	13.6%	31.7%	45.32%	−0.400	+0.150
ATP8ATP synthase F0 subunit 8	168 bp	38.1%	18.5%	6.0%	37.5%	43.45%	−0.726	+0.347
ATP6ATP synthase F0 subunit 6	684 bp	31.9%	23.2%	8.6%	36.3%	44.88%	−0.616	+0.157
COX3Cytochrome c oxidase subunit III	784 bp	28.8%	23.6%	14.7%	32.9%	47.58%	−0.383	+0.100
ND3NADH dehydrogenase subunit 3	351 bp	27.9%	24.8%	12.5%	34.8%	47.29%	−0.470	+0.059
ND4LNADH dehydrogenase subunit 4L	297 bp	34.3%	23.9%	12.1%	29.6%	41.75%	−0.419	+0.179
ND4NADH dehydrogenase subunit 4	1,368 bp	33.6%	20.9%	10.5%	35.1%	45.54%	−0.541	+0.232
ND5NADH dehydrogenase subunit 5	1,812 bp	33.2%	22.4%	11.6%	32.9%	44.48%	−0.479	+0.195
ND6NADH dehydrogenase subunit 6	522 bp	42.5%	10.2%	9.8%	37.5%	47.32%	−0.587	+0.615
CYTBCytochrome b	1,143 bp	30.1%	22.9%	12.2%	34.8%	46.98%	−0.482	+0.135
12S rRNA12S ribosomal RNA	981 bp	32.5%	17.8%	19.9%	29.8%	49.64%	−0.199	+0.292
16S rRNA16S ribosomal RNA	1,593 bp	35.5%	20.2%	17.5%	26.8%	44.32%	−0.210	+0.276
D-loopControl region (D-loop)	1,506 bp	29.5%	29.2%	13.1%	28.2%	41.37%	−0.364	+0.006

Codon usage

Counts per codon, darker is more frequent

Gene

3,787 codons in all protein-coding genes. Grouped with the Vertebrate mitochondrial code (NCBI table 2).

Phe F5.4%

UUU47

UUC159

Leu L17.6%

UUA65

UUG22

CUU52

CUC133

CUA351

CUG42

Ile I7.6%

AUU81

AUC208

Met M4.9%

AUA150

AUG35

Val V4.1%

GUU17

GUC47

GUA67

GUG23

Ser S7.0%

UCU30

UCC82

UCA98

UCG3

AGU8

AGC44

Pro P5.9%

CCU17

CCC79

CCA119

CCG10

Thr T10.0%

ACU43

ACC159

ACA176

ACG2

Ala A7.5%

GCU43

GCC124

GCA106

GCG11

Tyr Y3.0%

UAU30

UAC83

His H3.0%

CAU19

CAC94

Gln Q2.6%

CAA88

CAG10

Asn N3.5%

AAU20

AAC114

Lys K2.3%

AAA75

AAG12

Asp D1.6%

GAU16

GAC46

Glu E2.5%

GAA84

GAG9

Cys C0.7%

UGU8

UGC20

Trp W2.9%

UGA94

UGG14

Arg R1.9%

CGU6

CGC19

CGA42

CGG5

Gly G5.7%

GGU19

GGC70

GGA89

GGG37

Stop 0.3%

UAA6

UAG1

AGA1

AGG3

Genome map

38 annotated features in NC_025508.1

Hover, tap or tab to a feature to see its position, length, strand and GC content. Genes and rRNAs open their own pages.

Protein-coding13
rRNA2
tRNA22
D-loop1

Outer ring: + strand, arrows run clockwise. Inner ring: − strand.
Middle ring: GC% of each gene against the whole genome (45.2%, dashed): out is GC-richer, in is AT-richer (full height = 6 points).

All 38 features as a table

Annotated features of Porphyrio porphyrio (NC_025508.1)
Feature	Type	Start	End	Length	Strand	GC
tRNA-Phe	Transfer RNA	1	67	67 bp	+	–
12S rRNA	Ribosomal RNA	68	1,048	981 bp	+	49.6%
tRNA-Val	Transfer RNA	1,049	1,117	69 bp	+	–
16S rRNA	Ribosomal RNA	1,118	2,710	1,593 bp	+	44.3%
tRNA-Leu (UUR)	Transfer RNA	2,711	2,784	74 bp	+	–
ND1	Protein-coding gene	2,787	3,746	960 bp	+	45.3%
tRNA-Ile	Transfer RNA	3,745	3,816	72 bp	+	–
tRNA-Gln	Transfer RNA	3,826	3,896	71 bp	−	–
tRNA-Met	Transfer RNA	3,896	3,964	69 bp	+	–
ND2	Protein-coding gene	3,965	5,004	1,040 bp	+	44.8%
tRNA-Trp	Transfer RNA	5,005	5,075	71 bp	+	–
tRNA-Ala	Transfer RNA	5,077	5,145	69 bp	−	–
tRNA-Asn	Transfer RNA	5,148	5,222	75 bp	−	–
tRNA-Cys	Transfer RNA	5,227	5,293	67 bp	−	–
tRNA-Tyr	Transfer RNA	5,293	5,363	71 bp	−	–
COX1	Protein-coding gene	5,365	6,915	1,551 bp	+	46.9%
tRNA-Ser (UCN)	Transfer RNA	6,907	6,980	74 bp	−	–
tRNA-Asp	Transfer RNA	6,983	7,051	69 bp	+	–
COX2	Protein-coding gene	7,053	7,736	684 bp	+	45.3%
tRNA-Lys	Transfer RNA	7,738	7,808	71 bp	+	–
ATP8	Protein-coding gene	7,810	7,977	168 bp	+	43.5%
ATP6	Protein-coding gene	7,968	8,651	684 bp	+	44.9%
COX3	Protein-coding gene	8,651	9,434	784 bp	+	47.6%
tRNA-Gly	Transfer RNA	9,435	9,505	71 bp	+	–
ND3	Protein-coding gene	9,506	9,857	352 bp	+	47.3%
tRNA-Arg	Transfer RNA	9,862	9,930	69 bp	+	–
ND4L	Protein-coding gene	9,932	10,228	297 bp	+	41.8%
ND4	Protein-coding gene	10,222	11,589	1,368 bp	+	45.5%
tRNA-His	Transfer RNA	11,598	11,667	70 bp	+	–
tRNA-Ser (AGY)	Transfer RNA	11,669	11,733	65 bp	+	–
tRNA-Leu (CUN)	Transfer RNA	11,734	11,804	71 bp	+	–
ND5	Protein-coding gene	11,805	13,616	1,812 bp	+	44.5%
CYTB	Protein-coding gene	13,627	14,769	1,143 bp	+	47.0%
tRNA-Thr	Transfer RNA	14,771	14,840	70 bp	+	–
tRNA-Pro	Transfer RNA	14,846	14,916	71 bp	−	–
ND6	Protein-coding gene	14,922	15,443	522 bp	−	47.3%
tRNA-Glu	Transfer RNA	15,446	15,514	69 bp	−	–
D-loop	Control region	15,515	17,020	1,506 bp	–	41.4%