A Single Nucleotide Polymorphism Unique to the Galanthum-CMS of Onion
Different sources of cytoplasmic male sterility (CMS) are used to produce hybrid onion seed. The most commonly used source of CMS in onion is S cytoplasm (S-CMS), and male fertility is restored by a dominant allele at the nuclear male-fertility restoration locus (Ms). Male-sterile plants possess S c...
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| Format: | Article |
| Language: | English |
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American Society for Horticultural Science (ASHS)
2023-12-01
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| Series: | HortScience |
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| Online Access: | https://journals.ashs.org/hortsci/view/journals/hortsci/59/1/article-p8.xml |
| _version_ | 1797311785369337856 |
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| author | Michael J. Havey |
| author_facet | Michael J. Havey |
| author_sort | Michael J. Havey |
| collection | DOAJ |
| description | Different sources of cytoplasmic male sterility (CMS) are used to produce hybrid onion seed. The most commonly used source of CMS in onion is S cytoplasm (S-CMS), and male fertility is restored by a dominant allele at the nuclear male-fertility restoration locus (Ms). Male-sterile plants possess S cytoplasm and have the homozygous recessive genotype at Ms; seed propagation of male-sterile plants is possible by crossing with a male-fertile maintainer plant or inbred possessing normal (N) male-fertile cytoplasm and the homozygous recessive at the Ms locus (N msms). Some commercially important onion populations possess S-CMS and high frequencies of the dominant Ms allele, eliminating the possibility to develop maintainer lines. An alloplasmic source of CMS (Gal-CMS) was developed by backcrossing the cytoplasm of Allium galanthum into the nuclear background of onion. The advantage of Gal-CMS is that the dominant allele at Ms does not restore male fertility, making this source of CMS useful for the development of male-sterile lines from populations possessing S cytoplasm and dominant allele(s) at Ms. In this research, a single nucleotide polymorphism unique to the cytoplasms of A. galanthum and Gal-CMS was identified, useful to distinguish Gal-CMS from other onion cytoplasms. |
| first_indexed | 2024-03-08T02:04:50Z |
| format | Article |
| id | doaj.art-63524adb632a4b0298010c36947eb928 |
| institution | Directory Open Access Journal |
| issn | 2327-9834 |
| language | English |
| last_indexed | 2024-03-08T02:04:50Z |
| publishDate | 2023-12-01 |
| publisher | American Society for Horticultural Science (ASHS) |
| record_format | Article |
| series | HortScience |
| spelling | doaj.art-63524adb632a4b0298010c36947eb9282024-02-13T16:59:52ZengAmerican Society for Horticultural Science (ASHS)HortScience2327-98342023-12-01591https://doi.org/10.21273/HORTSCI17412-23A Single Nucleotide Polymorphism Unique to the Galanthum-CMS of OnionMichael J. Havey0Department of Horticulture, University of WisconsinDifferent sources of cytoplasmic male sterility (CMS) are used to produce hybrid onion seed. The most commonly used source of CMS in onion is S cytoplasm (S-CMS), and male fertility is restored by a dominant allele at the nuclear male-fertility restoration locus (Ms). Male-sterile plants possess S cytoplasm and have the homozygous recessive genotype at Ms; seed propagation of male-sterile plants is possible by crossing with a male-fertile maintainer plant or inbred possessing normal (N) male-fertile cytoplasm and the homozygous recessive at the Ms locus (N msms). Some commercially important onion populations possess S-CMS and high frequencies of the dominant Ms allele, eliminating the possibility to develop maintainer lines. An alloplasmic source of CMS (Gal-CMS) was developed by backcrossing the cytoplasm of Allium galanthum into the nuclear background of onion. The advantage of Gal-CMS is that the dominant allele at Ms does not restore male fertility, making this source of CMS useful for the development of male-sterile lines from populations possessing S cytoplasm and dominant allele(s) at Ms. In this research, a single nucleotide polymorphism unique to the cytoplasms of A. galanthum and Gal-CMS was identified, useful to distinguish Gal-CMS from other onion cytoplasms.https://journals.ashs.org/hortsci/view/journals/hortsci/59/1/article-p8.xmlalien cytoplasmallium galanthumcytoplasmic male sterility |
| spellingShingle | Michael J. Havey A Single Nucleotide Polymorphism Unique to the Galanthum-CMS of Onion HortScience alien cytoplasm allium galanthum cytoplasmic male sterility |
| title | A Single Nucleotide Polymorphism Unique to the Galanthum-CMS of Onion |
| title_full | A Single Nucleotide Polymorphism Unique to the Galanthum-CMS of Onion |
| title_fullStr | A Single Nucleotide Polymorphism Unique to the Galanthum-CMS of Onion |
| title_full_unstemmed | A Single Nucleotide Polymorphism Unique to the Galanthum-CMS of Onion |
| title_short | A Single Nucleotide Polymorphism Unique to the Galanthum-CMS of Onion |
| title_sort | single nucleotide polymorphism unique to the galanthum cms of onion |
| topic | alien cytoplasm allium galanthum cytoplasmic male sterility |
| url | https://journals.ashs.org/hortsci/view/journals/hortsci/59/1/article-p8.xml |
| work_keys_str_mv | AT michaeljhavey asinglenucleotidepolymorphismuniquetothegalanthumcmsofonion AT michaeljhavey singlenucleotidepolymorphismuniquetothegalanthumcmsofonion |