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Table 1 Phenotypic characteristics of three wild Chinese and seven European thyme species

From: Creation of new germplasm resources, development of SSR markers, and screening of monoterpene synthases in thyme

Species

Chemotype

Plant type

Oil yield (%)

Pollen

Seed

Sterility phenotype

Flowering phase

Thymus quinquecostatus

Carvacrol

Creeping

0.50

Present

Present

Male-fertile

2020.4.20–2020.8.30

Thymus quinquecostatus var. przewalskii

Carvacrol

Creeping

0.50

Present

Present

Male-fertile

2020.4.20–2020.8.30

Thymus mongolicus

Thymol

Creeping

0.40

Present

Present

Male-fertile

2020.5.12–2020.8.30

Thymus rotundifolius

Thymol

Erect

0.95

Absent

Absent

Male-sterile

2020.6.20–2020.7.30

Thymus vulgaris ‘Elsbeth’

Thymol

Erect

0.75

Absent

Absent

Male-sterile

2020.6.1–2020.6.20

Thymus guberlinesis

Thymol

Creeping

0.50

Absent

Absent

Male-sterile

2020.5.6–2020.5.20

Thymus thracicus

Thymol

Erect

1.20

Absent

Absent

Male-sterile

2020.5.8–2020.5.30

Thymus serpyllum ‘Aureus’

Thymol

Creeping

0.52

Absent

Absent

Male-sterile

2020.5.22–2020.6.15

Thymus longicaulis

Geraniol

Creeping

0.70

Absent

Absent

Male-sterile

2020.4.20–2020.5.15

Thymus vulgaris ‘Fragrantissimus’

α–terpineol

Erect

1.25

Present

Present

Male-fertile

2020.4.20–2020.5.10