biologia plantarum

International journal on Plant Life established by Bohumil Němec in 1959

Biologia plantarum 16:382-388, 1974 | DOI: 10.1007/BF02921004

Aneuploidy in guava

Shafaat Mohammed1
1 Division of Horticulture and Fruit Technology, Indian Agricultural Research Institute, New Delhi, India

Aneuploids have been identified cytomorphologically in progenies from triploid and diploid-triploid crosses. 30 trisomics, 2 double trisomics, 1 tetrasomic, and 2 higher aneuploids were obtained. Some of the aneuploids were found to be different from those reported earlier and higher aneuploids carried eight extra chromosomes. The plants with one extra chromosome occurred more frequently (67%) than the other aneuploid types.
The changes in morphological traits such as a reduction in the amount of growth and the size of leaf etc. distinguished aneuploids from diploids. In the higher aneuploids the plant parts were highly exaggerated and pollen sterility was very high. The chromosomal counts in acetocarmine squashes confirmed the presence of extra chromosome(s). Aneuploids particularly trisomics were found to be promising and may lead to the production of commercially viable plants.

Received: September 20, 1973; Published: September 1, 1974  Show citation

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Mohammed, S. (1974). Aneuploidy in guava. Biologia plantarum, 16(5), 382-388. doi: 10.1007/BF02921004
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