Variety traits
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.
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.
Brassica napus var. napus · Rapeseed
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Brassica napus L. · Rapeseed
Norddeutsche Pflanzenzucht
Secale cereale L. · Rye
WILDE PEER
Brassica napus var. napus · Rapeseed
Lidea France S.A.S
Zea mays L. · Maize
Parii IAroslav Fedorovych, Parii Myroslav Fedorovych, Parii Myroslava Lukinichna, Tkachuk Zinovii IUr'ievych, Parii Fedir Mykytovych,
Helianthus annuus L. · Sunflower
Agri Genetics Company (US)
x Triticosecale Wittm. ex A. Camus · Triticale
DR Elmar A. WEISSMANN (DE)
Citrus L. · Citrus
Mikeal, Roose
Brassica napus L. · Rapeseed
Gertz Andreas
Brassica napus L. · Rapeseed
Gertz Andreas
Hydrangea serrata (Thunb.) Ser. var. serrata · Tea-of-heaven
Wood Timothy D
Secale cereale L. · Rye
Adamchuk Halyna Kostiantynivna, Dryl Valentyna Petrivna, Batsaieva Rita Dmytrivna, Krainiuk Nina Oleksandrivna, Havrysh Zinaida Vasylivna, Yehorov Dmytro Kostiantynovych, Derev'ianko Vira Petrivna,
Solanum tuberosum L. · Potato
Prunus avium (L.) L. · Sweet cherry
Brassica oleracea L. (Red Cabbage Group) · Red cabbage
Brassica napus L. · Rapeseed
Norddeutsche Pflanzenzucht Hans-Georg Lembke KG
Brassica napus var. napus · Rapeseed
MONSANTO TECHNOLOGY
Beta vulgaris Sugar Beet Group · Sugar beet
KWS SAAT SE & CO.KGAA
Beta vulgaris Sugar Beet Group · Sugar beet
Margaret Rekoske
Brassica napus var. napus · Rapeseed
Andreas Gertz
Solanum lycopersicum L. · Tomato
Hristo Georgiev
Phaseolus vulgaris L. · Common bean
VILMORIN, S.A.
Daucus carota L. · Carrot
Seminis Vegetable Seeds
Citrullus lanatus (Thunb.) Matsum. & Nakai · Watermelon
S&G SEEDS B.V.