IOA1177DMR
Application submittedHelianthus annuus L. · Sunflower
Rene Baratin
UA
3 records
Variety traits
Cytoplasmic Male Sterility (CMS)
CMS is a condition in plants where pollen is either not produced or is non-viable despite the normal development of female organs. It is a fundamental trait in commercial seed production that prevents self-pollination and allows the production of hybrid seeds without manual emasculation.
Mentioned in descriptions 4 451 varieties reference book.
Cytoplasmic male sterility manifests as the absence of fertile pollen, while pistillate organs remain functional. In breeding processes, such plants are used as maternal lines, which are pollinated by paternal forms to ensure 100% hybridity of the offspring. To obtain commercial fertile hybrids, nuclear fertility-restorer genes are introduced into the plant genotype, ensuring normal pollen development in the final product.
The trait is evaluated by determining the degree of pollen sterility, morphological examination of anthers for signs of degeneration and their ability to dehisce, as well as by microscopic analysis of pollen grains. Modern methods include the use of molecular DNA markers to identify sterility genes in mitochondria and restorer genes in the nucleus.
The manifestation of CMS depends on the interaction between the genotype and environmental conditions, including temperature and humidity, which can affect the stability of the trait. Incomplete fertility restoration in commercial crops can lead to seed set issues, so when selecting a hybrid, the originator's guarantee regarding the effective performance of fertility restorers under field conditions is important.
Breakdown by crop
Male Sterility (CMS) — Hydrangea macrophylla
278
Cytoplasmic Male Sterility in Maize
76
Cytoplasmic Male Sterility in Sunflower
74
Male Sterility (CMS) — Sugar Beet
65
Cytoplasmic Male Sterility in Rapeseed
62
Male sterility in Hydrangea
37
Cytoplasmic Male Sterility (CMS) — Rye
25
Cytoplasmic Male Sterility in Rapeseed
23
Male sterility (CMS) — Spanish lavender
17
Cytoplasmic Male Sterility in Rice
15
Cytoplasmic Male Sterility in Tobacco
14
Cytoplasmic Male Sterility (CMS) — White Cabbage
11
Cytoplasmic Male Sterility in Sorghum
10
Cytoplasmic Male Sterility in Sweet Cherry
9
Cytoplasmic Male Sterility (CMS) in Cauliflower
8
Male sterility in Buddleja
8
Male sterility (CMS) — giant miscanthus
8
Male sterility in lilies
8
Cytoplasmic Male Sterility in Barley
7
Cytoplasmic Male Sterility (CMS) in Broccoli
7
Male sterility in mandarin
7
Male sterility in carrot
6
Cytoplasmic Male Sterility (CMS) in Hibiscus syriacus × Hibiscus paramutabilis hybrids
6
Male Sterility (CMS) — Sweet Chestnut
6
Found in these crops
Varieties that feature this in their description
Selection based on the description text, not official resistance ratings: such data is not available in registers. Mention indicates that the trait is discussed in the variety's sources; see the variety's profile for details on what is specifically stated.
Inra 6501
TerminatedHelianthus annuus L. · Sunflower
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
FR
1 record
Helios
TerminatedCichorium intybus L. · Chicory
Hoquet Endives (FR)
FR
1 record
I520A (L.P.)
TerminatedHelianthus annuus L. · Sunflower
KOIPESOL SEMILLAS, S.A.
ES
1 record
HA 99CMS
TerminatedHelianthus annuus L. · Sunflower
DAKOTA UNIV.
ES
1 record
Hanabee Rose
Application submittedDigitalis purpurea L. · Common Foxglove
TAKII & CO LTD
NL
1 record
Hanabee Pink
Application submittedDigitalis purpurea L. · Common Foxglove
TAKII & CO LTD
NL
1 record
HA 89CMS
TerminatedHelianthus annuus L. · Sunflower
DAKOTA UNIV.
ES
1 record
GW475BMR
WithdrawnSorghum bicolor (L.) Moench · Sorghum
GAYLAND WARD SEED CO. INC.
IT
1 record
HA 234CMS
TerminatedHelianthus annuus L. · Sunflower
DAKOTA UNIV.
ES
1 record
Guelzower 1
TerminatedSecale cereale L. · Rye
MELZ| Dr. Gilbert Melz
DE
1 record
HEIDRUN
TerminatedSolanum tuberosum L. · Potato
WOLF LANGE
DK
2 records
Hanabee White
Application submittedDigitalis purpurea L. · Common Foxglove
TAKII & CO LTD
NL
1 record
HA 232CMS
TerminatedHelianthus annuus L. · Sunflower
DAKOTA UNIV.
ES
1 record
Gloscarlet
TerminatedSinningia Nees · Gloxinia
PLATE| Renate Plate
DE
1 record
GRELIVE
TerminatedCupressus L. · Cypress
George Greeve (GB)
FR
1 record
Grape Ice
ActiveMuscari · Grape hyacinth
W. van Lierop & Zonen B.V.
NL
1 record
Goldwin
TerminatedCichorium intybus L. · Chicory
Vilmorin SA (FR)
FR
1 record
Fuji-no-Shirayuki
ActiveHydrangea serrata (Thunb.) Ser. var. serrata · Tea-of-heaven
Information regarding the breeder received in the contribution to CPVO :Katsumata Kazuyoshi
FR
1 record
Floks
ActiveHelianthus annuus L. · Sunflower
Burlov Viktor Viktorovych, Burlov Viktor Vasylovych,
UA
2 records
Forget Me Not
ActiveHydrangea serrata (Thunb.) Ser. var. serrata · Tea-of-heaven
Information regarding the breeder received in the contribution to CPVO :De Belder & van Trier
FR
1 record
FLORIMI
ActiveHelianthus annuus L. · Sunflower
Burlov Viktor Vasylovych
UA
2 records
Fuji-no-Taki
ActiveHydrangea serrata (Thunb.) Ser. var. serrata · Tea-of-heaven
Information regarding the breeder received in the contribution to CPVO :Katsumata Kazuyoshi
FR
1 record
FLEMYGEA
TerminatedHydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
FLEMER III WILLIAM (US)
FR
1 record