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Table 2 A list of genes detected on the B chromosomes of A. correntinus, A. mexicanus and A. flavolineata involved in chromosomes, microtubules or cell cycle related processes

From: B chromosomes of multiple species have intense evolutionary dynamics and accumulated genes related to important biological processes

Species

Ensembl ID

Protein name

Gene name

Gene description

Function related to cell cycle/chromosome

A. correntinus

ENSAMXT00000047800.1

ATP-dependent DNA helicase Q1

RECQL

DNA helicase activity

Chromosome organization

ENSAMXT00000008370.2

Structural maintenance of chromosomes 2

smc2–201

Structural maintenance of chromosomes 2

Chromosome organization

ENSAMXT00000050221.1

Histone-lysine N-methyltransferase

ASHH2

Histone lysine methylation

The modification of a histone by addition of one or more methyl groups to a lysine residue.

ENSAMXT00000055649.1

E3 ubiquitin-protein ligase

RNF8

Ubiquitination of histones H2A and H2AX

Chromatin decondensation

ENSAMXT00000043499.1

dkey-16p21.7

dkey-16p21.7

Protein kinase activity

Chromatin remodeling

ENSAMXT00000048305.1

SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily E member 1

SMARCE1

Alteration of DNA-nucleosome topology

Chromosome remodeling

ENSAMXT00000039111.1

ch211-255f4.7

Novel gene

unknown

Chromatin remodeling

ENSAMXT00000039111.1

CCCTC-binding factor (Zinc finger protein)

CTCF

Chromatin biding

Regulation of genne expression

ENSAMXT00000034475.1

Zgc:85722

Zgc:85722

Unkonown

Establishment of mitotic spindle orientation, microtubule-based process, cell cycle

ENSAMXT00000030346.1

Tubulin alpha chain

TUBA

It binds two moles of GTP, one at an exchangeable site on the beta chain and one at a non-exchangeable site on the alpha chain.

Major constituent of microtubules

ENSAMXT00000030102.1

microtubule-associated proteins

MAPs

Microtubules cytoskeleton organization

Stability and regulate microtubules,

ENSAMXT00000026549.2

MAP7 domain-containing protein 1

MAP7D1

Microtubule cytoskeleton organization

Stability and regulate microtubules,

ENSAMXT00000057964.1

Histone H4

HIST1H4J

Core component of nucleosome. Nucleosomes wrap and compact DNA into chromatin

Chromosome stability

A. mexicanus

ENSAMXT00000054831.1

Eukaryotic translation initiation factor 4 gamma 1

EIF4G1

Recognition of the mRNA cap

Mitochondrion organization

ENSAMXT00000043499.1

dkey-16p21.7

dkey-16p21.7

Protein kinase activity

Chromatin remodeling

A. flavolineata

FBtr0070762

DNA replication licensing factor MCM3

Mcm3

Putative replicative helicase

Cell cycle’ and DNA replication initiation and elongation in eukaryotic cells

FBtr0076253

General transcription and DNA repair factor IIH helicase subunit XPB

hay

ATP-dependent 3′-5′ DNA helicase

Transcription-coupled nucleotide excision repair (NER) of damaged DNA

FBtr0079901

SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily A containing DEAD/H box 1 homolog

Etl1

ATP-dependent nucleosome-remodeling activity

DNA repair and heterochromatin organization

FBtr0083193

Meiotic recombination protein

rec

Separation of sister chromatids and homologous chromosomes

Chromosomes separation during meisis

FBtr0085875

205 kDa microtubule-associated protein

Map205

Phosphorylation

Microtubule assembly and interaction

FBtr0087461

Structural maintenance of chromosomes protein 3

SMC2

chromosome cohesion during the cell cycle

Cell division

FBtr0087904

Anastral spindle 1, isoform A

ana1

Nucleation of microtubules

Spindle fiber formation

FBtr0339505

Meiotic central spindle, isoform B

Meics

Nucleation of microtubules

Spindle Assembly and Chromosome Segregation

FBtr0304801

Mini spindles, isoform D

msps

Nucleation of microtubules

Integrity of the Mitotic Spindle

FBtr0299509

Doublecortin-domain-containing echinoderm-microtubule-associated protein, isoform G

DCX-EMAP

Assembly dynamics of microtubules

Microtubules cytoskeleton segregation

GDIO01044471.1

SWI/SNF-related matrix-associated actin-dependent regulator of chromatin subfamily A-like protein 1

SMARCAL1

ATP-dependent annealing helicase

Catalyzes the rewinding of the stably unwound DNA

GDIO01001775.1

Histone-lysine N-methyltransferase eggless

egg

Histone methyltransferase

Histones methylation

GDIO01013035.1

Dosage compensation regulator

mle

Compensation of X chromosome linked genes

Sex differenciation

GDIO01001774.1

Histone-lysine N-methyltransferase eggless

egg

Histone methyltransferase

Histone H3-K9 methylation, heterochromatin organization, positive regulation of methylation-dependent chromatin silencing

GDIO01030872.1

GH07148p

Dmel\CG1582

unknown

Chromatin silencing, mitotic chromosome condensation

GDIO01009316.1

Tubulin beta-1 chain

mec-7

Microtubules formation

Attachment of spindle microtubules to kinetochore involved in meiotic chromosome segregation

GDIO01018464.1

Gamma-tubulin complex component 3

GCP3

Microtubule nucleation

Spindle assembly, regulation of cell cycle, meiotic nuclear division