RGT Keac
Terminatedx Triticosecale Wittm. ex A. Camus · Triticale
RAGT 2n, FR
FR
5 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.
Pruktor Cemes
ActiveBrassica oleracea L. (White Cabbage Group) · White cabbage
Syngenta Seeds B.V.
NL
4 records
Primera
Protection expiredAechmea Ruiz et Pav. · Aechmea
Elly Bak^^^Nicolaas D.M. Steur
NL
4 records
Prim 41
ActivePrunus avium (L.) L. · Sweet cherry
Stoppel Peter
DE
4 records
Ph2fp0
ActiveZea mays L. · Maize
Susanne Groh
UA
6 records
Moonbeam
Protection expiredOrnithogalum candicans (Baker) J.C. Manning & Goldblatt · Galtonia
STIDOLPH| Nora Stidolph / STIDOLPH DIANA| Diana Stidolph
DE
4 records
Le Vasterival
ActiveHydrangea paniculata Siebold · Panicled hydrangea
Sturdza Greta|Varengeville sur Mer, FR
FR
4 records
Lady in Red
ActiveHydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
MICHAEL A DIRR
FR
5 records
Frau Fujiyo
Protection expiredHydrangea L. · Hydrangea
HIROSHI EBIHARA
NL
4 records
Cavalier
ActiveTriticum aestivum L. · Bread wheat
WORLD WIDE WHEAT L.L.C.
ES
4 records
Bartavelle
ActiveBeta vulgaris Sugar Beet Group · Sugar beet
SAS FLORIMOND-DESPREZ Veuve et Fils
FR
4 records
Badenstern
ActiveTriticum aestivum L. subsp. spelta (L.) Thell. · Spelt
Christof Immanuel Kling
DE
5 records
Walhero
ActiveHelleborus L. · Christmas Rose
Tristram David|Arundel BN18 OAS, GB
Waldigone
ActiveDigitalis L. · Foxglove
Tristram David Ralph|Arundel, West Sussex BN18 0AS, GB
Zomoa
ActiveClematis L. · Clematis
van Zoest Jan
Winter Lace
ActiveLavandula stoechas L. · French lavender
Plant Growers Australia Pty Ltd
Viking
ActiveCampanula L. · Bellflower
Blom Arie
Wild Magic
ActiveOcimum basilicum L. · Basil
Udo Schäfer
Table Mountain
Application submittedHelianthus salicifolius A. Dietr. · Willow-leaf Sunflower
Keith R.W. Hammett
Superbini
ActiveSanvitalia procumbens Lam. · Creeping zinnia
Hugo Dittmar Samen und Pflanzen
Snowberry
ActiveCoreopsis L. · Tickseed
TERRA NOVA NURSERIES INC
Sweet Dreams
ActiveCoreopsis rosea Nutt. · Pink coreopsis
Leonard Mark Alan
SMHPFL
ActiveHydrangea paniculata Siebold · Panicled hydrangea
Wood Timothy D
Strawberry Ruffles
ActiveLavandula stoechas L. · French lavender
Plant Growers Australia Pty Ltd