Variety traits

Male sterility in mandarin

Citrus reticulata Blanco

Male sterility in mandarin is a key breeding trait for obtaining seedless fruits, based on genetic meiotic disorders or interactions between nuclear and mitochondrial genomes.

In the reference 7 varieties crop Mandarin orange, where this is mentioned in the description.

Male sterility in Citrus reticulata Blanco manifests through developmental anomalies of staminal organs, including meiotic disturbances during the transition from the first to the second stage, which leads to the formation of non-viable pollen. This trait is actively used in breeding to ensure stable seedlessness, which significantly improves the commercial quality of the fruits.

Evaluation of the trait includes quantitative analysis of the number of pollen grains per anther (NPG) and determination of pollen viability using staining methods or electron microscopy, which reveals deformations and collapse of the shell. For breeding purposes, molecular genetic markers and QTL mapping are employed, allowing the identification of sterile forms at the seedling stage before the onset of fruit bearing.

General information about the subject — on the page Cytoplasmic Male Sterility (CMS).

Sources6

Varieties of Mandarin orange mentioned in the description

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.