Pollination with irradiated pollen in rice—Oryza sativa L. I. First (M1) generation

Chin S.-F. and Gordon G.H. (1989) Pollination with irradiated pollen in rice—Oryza sativa L. I. First (M1) generation. Heredity, 63 2: 163-170. doi:10.1038/hdy.1989.88


Author Chin S.-F.
Gordon G.H.
Title Pollination with irradiated pollen in rice—Oryza sativa L. I. First (M1) generation
Journal name Heredity   Check publisher's open access policy
ISSN 1365-2540
Publication date 1989-01-01
Sub-type Article (original research)
DOI 10.1038/hdy.1989.88
Open Access Status Not yet assessed
Volume 63
Issue 2
Start page 163
End page 170
Total pages 8
Language eng
Subject 1311 Genetics
2716 Genetics (clinical)
Abstract Pollen from a paternal rice cultivar was pre-irradiated with gamma rays before using them to pollinate the emasculated florets of a maternal cultivar. A second-order polynomial regression relation was established between radiation dosage and seed set. LD for seed set was 10 krad. In the first generation derived from such irradiated pollination, the Ml progeny were either identical to the F1 plants in both polygenic and major gene traits, or were hemizygous plants showing recessive maternal major gene markers. Many hemizygous Ml plants were mutated and sterile. Irradiated pollination did not induce parthenogenic maternal plants in rice. None of the Ml progeny was maternal and at the same time, having also some paternal characteristics. The net effect of pollination with irradiated pollen in rice is the inheritance and expression of damaged paternal alleles by the M1 progeny, rather than the limited transfer of genetic fragments from the irradiated pollen genome to the Ml generation, as originally proposed by Pandey (1975).
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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