Variety traits
Helianthus annuus L.
A genetic mechanism for controlling male sterility in sunflower, used to create heterotic hybrids and eliminate the need for manual emasculation of maternal lines. It is based on specific mitochondrial markers and nuclear fertility-restorer genes.
In the reference 74 varieties crop Sunflower, where this is mentioned in the description.
The primary tool for assessing sterility is cytological analysis of pollen, which determines its degree of defectiveness. Sterile lines based on the most common PET1 CMS type are characterized by the absence of viable pollen or anther degeneration, with the standard requirement for sterility in maternal forms being 95–98%.
Molecular genetic identification of a line's status is conducted using PCR methods to detect the mitochondrial gene orfH522 and the nuclear fertility-restorer genes Rf1. The use of the CMS-Rf system allows for the breeding of highly productive hybrids; however, the high proportion of hybrids based on PET1 cytoplasm creates a risk of genetic vulnerability, which stimulates the search for alternative types, such as RIG0.
General information about the subject — on the page Cytoplasmic Male Sterility (CMS).
Selection based on the description text, not on official evaluation: these data are absent from registers. For specific variety details, please refer to its profile.
Helianthus annuus L. · Sunflower
Sereda, Valentyna Kutishceva, Nataliia Odynets, Serhii Shcudria, Larysa
Helianthus annuus L. · Sunflower
Kutischeva Nataliia Mykolaivna, Lytovchenko Borys Kyrylovych, Scherban` Nataliia Fedorovna, Scherban` Serhii Vasyl`ovych, Riabota Oleksandr Mykolaiovych,
Helianthus annuus L. · Sunflower
Petrenkova Vira Pavlivna, Veselyi Vitalii Oleksandrovych, Kuzmyshena Nadiia Viktorivna, Syvenko Valentyna Ivanivna, Alad`ina Zoia Kyrylivna, Makliak Kateryna Mykolaivna, Kyrychenko Viktor Vasylovych,
Helianthus annuus L. · Sunflower
Diadiura Valentyna Petrivna, Borysenko Valerii Andriiovych, Chekhov Anatolii Vasyl`ovych, Shudria Larysa Ivanivna, Lytovchenko Borys Kyrylovych, Kutischeva Nataliia Mykolaivna, Riabota Oleksandr Mykolaiovych,
Helianthus annuus L. · Sunflower
Institut for Wheat & Sunflow - Tolbuchin (BG)
Helianthus annuus L. · Sunflower
PIONEER HI-BRED INTERNATIONAL
Helianthus annuus L. · Sunflower
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Helianthus annuus L. · Sunflower
Poljoprivredni Institut Osijek, HR
Helianthus annuus L. · Sunflower
Malinovskyi Serhii Volodymyrovych
Helianthus annuus L. · Sunflower
Kryvosheieva Olena Vatslavivna, Shepilov Borys Petrovych, Popova Ol`ha Andriivna, Veselyi Vitalii Oleksandrovych, Kuzmyshena Nadiia Viktorivna, Syvenko Valentyna Ivanivna, Alad`ina Zoia Kyrylivna, Makliak Kateryna Mykolaivna, Kyrychenko Viktor Vasylovych
Helianthus annuus L. · Sunflower
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Helianthus annuus L. · Sunflower
Rene Baratin
Helianthus annuus L. · Sunflower
INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE, FR
Helianthus annuus L. · Sunflower
KOIPESOL SEMILLAS, S.A.
Helianthus annuus L. · Sunflower
DAKOTA UNIV.
Helianthus annuus L. · Sunflower
DAKOTA UNIV.
Helianthus annuus L. · Sunflower
DAKOTA UNIV.
Helianthus annuus L. · Sunflower
DAKOTA UNIV.
Helianthus annuus L. · Sunflower
Burlov Viktor Viktorovych, Burlov Viktor Vasylovych,
Helianthus annuus L. · Sunflower
Burlov Viktor Vasylovych
Helianthus annuus L. · Sunflower
CECOSA
Helianthus annuus L. · Sunflower
CECOSA
Helianthus annuus L. · Sunflower
Skoric, Dragan / Mihajlcevic, Miroslav / Marinkovic, Radovan / Jocic, Sinisa
Helianthus annuus L. · Sunflower
Burlov Viktor Vasylovych