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.
Malus domestica (Suckow) Borkh. · Apple
Information not available - Contact NL authorities
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
JOHN HEDGER
Hydrangea macrophylla (Thunb.) Ser. · Bigleaf hydrangea
Information regarding the breeder received in the contribution to CPVO :Wood T.
Citrus clementina hort. ex Tanaka · Clementine
VARIOS OBTENTORES
Brassica oleracea L. (Cauliflower Group) · Cauliflower
Institut National de la Recherche Agronomique (FR)/Cerafel (FR)
Hydrangea arborescens L. · Smooth hydrangea
NORTH CAROLINA STATE UNIVERSITY
Capsicum annuum L. · Bell pepper
Zeraim Gedera Ltd. Seed Company
Pyrus communis L. · European pear
Brassica oleracea L. (White Cabbage Group) · White cabbage
KOROLEVA SVETLANA VIKTOROVNA / MONAHOS GRIGORIJ FEDOROVICh / YuRChENKO SEMEN ALEKSANDROVICh
Sorghum bicolor (L.) Moench · Sorghum
Tsvetan Kikindonov, Kalin Slanev
Hydrangea paniculata Siebold · Panicled hydrangea
Information regarding the breeder received in the contribution to CPVO :De Belder R. & J.
Citrus reticulata Blanco · Mandarin orange
GIUSEPPE REFORGIATO/GIUSEPPE RUSSO/SANTO RECUPERO
Brassica napus var. napus · Rapeseed
CARGILL GENETIQUE EUROPE SNC
Beta vulgaris Sugar Beet Group · Sugar beet
KWS Saat AG, DE
Zea mays L. · Maize
Antoniuk Serhii Petrovych, Cherchel Vladyslav IUriiovych, Dziubetskyi Borys Volodymyrovych,
Zea mays L. · Maize
Antoniuk Serhii Petrovych, Cherchel Vladyslav IUriiovych, Dziubetskyi Borys Volodymyrovych,
Zea mays L. · Maize
Riabchenko Eduard Mykolaiovych, Fedko Mykola Mykolaiovych, Cherchel Vladyslav IUriiovych, Dziubetskyi Borys Volodymyrovych,
Zea mays L. · Maize
Bondar Tetiana Mykolaivna, Kupar Ivan Mykhailovych, Bodenko Natalia Anatoliivna, Fedko Mykola Mykolaiovych, Cherchel Vladyslav IUriiovych, Dziubetskyi Borys Volodymyrovych,
Zea mays L. · Maize
Antoniuk Serhii Petrovych, Cherchel Vladyslav IUriiovych, Dziubetskyi Borys Volodymyrovych,
Zea mays L. · Maize
Cherchel Vladyslav IUriiovych, Dziubyts`kyi Borys Volodymyrovych,
Zea mays L. · Maize
Antoniuk Serhii Petrovych, Cherchel Vladyslav IUriiovych, Dziubetskyi Borys Volodymyrovych,
Lactuca sativa L. · Lettuce
SOUTHERN CROSS SEEDS PTY LTD
Zea mays L. · Maize
Antoniuk Serhii Petrovych, Cherchel Vladyslav IUriiovych, Dziubetskyi Borys Volodymyrovych,
Helianthus annuus L. · Sunflower
Pershyna Lilia Vasylivna, Odynets` Serhii Ivanovych, Shudria Larysa Ivanivna, Kutischeva Nataliia Mykolaivna, Lytovchenko Borys Kyrylovych,