Table 2 Pollen exine formation-related genes showed changed expression

Lipid metabolism

Bra038691

− 2.7

4.0

− 2.8

–

–

AT3G11980

MS2

tapetum shortly after release of microspore from tetrad

Bra033272

−2.6

3.6

−6.1

–

5.6

AT1G01280

CYP703A2

tapetum and microspore specific

Bra004386

−1.4

1.7

−4.0

–

–

AT1G69500

CYP704B1

anther-specific

Phenolic metabolism

Bra036646

−2.4

1.4

−8.5

–

–

AT1G62940

ACOS5

tapetum-specific

Bra011566

−1.7

2.5

−8.1

–

–

AT4G34850

PKSA

tapetum-specific

Bra017147

−1.7

3.3

−6.5

–

–

AT1G02050

PKSB

tapetum-specific

Bra004316

−3.0

–

−4.4

–

–

AT1G68540

TKPR2

tapetum-specific

Transporters

Bra039378

–

1.5

−3.2

–

–

AT3G13220

ABCG26

tapetum-specific

Bra005048

–

1.4

−5.2

–

–

AT2G39350

ABCG1

tapetum-specific

Bra026352

–

–

2.3

–

–

AT4G27420

ABCG9

tapetum-specific

Bra021598

–

–

4.2

4.6

4.7

AT2G29940

ABCG31

tapetum-specific

Bra000469

–

1.9

3.9

3.3

3.3

AT2G29940

ABCG31

tapetum-specific

Bra014776

–

3.2

3.5

2.0

2.7

AT3G55090

ABCG16

tapetum-specific

Bra038907

−1.8

–

–

–

−8.9

At3G51590

LTP12

anther wall tapetum

Bra028294

−2.8

–

−6.8

–

–

AT5G52160

–

flower stage 9

Bra009282

–

–

−2.1

–

–

AT5G07230

–

flower stage 9,10,11

Bra012819

−3.9

–

−8.2

–

–

AT3G52130

–

flower stage 9

Transcription factors

Bra013519

–

−3.0

4.3

5.3

–

AT4G21330

DYT1

highly expressed in the tapetum, meiocytes and microspores

Bra002004

–

–

−1.4

1.9

AT2G16910

AMS

tapetum

Bra013041

–

–

−1.2

–

–

AT2G16910

AMS

tapetum

Bra002847

–

3.8

−6.1

–

–

AT5G56110

MYB80

tapetum, middle layers and developing microspores

Bra035604

–

2.2

−8.9

–

–

AT5G56110

MYB80

tapetum, middle layers and developing microspores

Bra002401

–

5.3

−3.7

–

–

AT5G22260

MS1

tapetum shortly after microspore release from tetrad

Bra004689

–

–

1.7

–

–

AT2G42380

bZIP34

anthers and pistils