Molecular markers associated with male-sterile cytoplasms and male-fertility restorer locus in onion (Allium cepa): a review

Purpose: CMS hybrid seed production systems are employed effectively for onion. Cytoplasmic male sterility (CMS) has long been used to economically produce hybrids that harness growth vigor through heterosis. Three types of onion CMS (CMS-S, CMS-R, and CMS-T) have been used in hybrid onion breeding....

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Main Author: Zahra Abbasi
Format: Article
Language:English
Published: University of Birjand 2023-12-01
Series:Journal of Horticulture and Postharvest Research
Subjects:
Online Access:https://jhpr.birjand.ac.ir/article_2624_9598826cb647bbdadf2220f6324d2db3.pdf
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author Zahra Abbasi
author_facet Zahra Abbasi
author_sort Zahra Abbasi
collection DOAJ
description Purpose: CMS hybrid seed production systems are employed effectively for onion. Cytoplasmic male sterility (CMS) has long been used to economically produce hybrids that harness growth vigor through heterosis. Three types of onion CMS (CMS-S, CMS-R, and CMS-T) have been used in hybrid onion breeding. Findings: The sources of onion CMS, their maintainer plants and fertility restorer lines can be distinguished by markers, saving times spent on crop establishment and avoiding the complex of phenotypic screening. Numerous molecular markers especially PCR markers associated with male-sterile (CMS-S and CMS-T) cytoplasms, male-fertile normal (N) cytoplasm and nuclear-male- fertility restorers (Ms locus) were developed. These simple PCR markers are valuable tools for the marker-assisted selection of segregating individuals in onion F1 hybrid breeding programs. The present review reveals practical utility and functional effectiveness in the MAS of male-sterile cytoplasm types with nuclear-fertility-restorer locus. Limitations: the environment effect especially temperature may cause male-sterility instability and deviations in segregation ratios for male sterility. Also, maximum exploitation of molecular markers linked to Ms/ms and CMS-S, -T genes aid in the recovery of male-sterile traits requires to a perfect linkage disequilibrium that must be investigated further. Directions for future research: Furthermore, this information could highly have paved the way for hybrid onion development by applicating of the molecular findings to identify onion male sterility, maintainer and male fertility restorer lines.
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spelling doaj.art-7f638502ee244cd99d0f0f4b6d3c502b2023-12-23T08:07:32ZengUniversity of BirjandJournal of Horticulture and Postharvest Research2588-48832588-61692023-12-016Issue 437138210.22077/jhpr.2023.6703.13292624Molecular markers associated with male-sterile cytoplasms and male-fertility restorer locus in onion (Allium cepa): a reviewZahra Abbasi0Horticulture Crops Research Department, Isfahan Agricultural and Natural Resources Research and Education Center, (AREEO), Isfahan, IranPurpose: CMS hybrid seed production systems are employed effectively for onion. Cytoplasmic male sterility (CMS) has long been used to economically produce hybrids that harness growth vigor through heterosis. Three types of onion CMS (CMS-S, CMS-R, and CMS-T) have been used in hybrid onion breeding. Findings: The sources of onion CMS, their maintainer plants and fertility restorer lines can be distinguished by markers, saving times spent on crop establishment and avoiding the complex of phenotypic screening. Numerous molecular markers especially PCR markers associated with male-sterile (CMS-S and CMS-T) cytoplasms, male-fertile normal (N) cytoplasm and nuclear-male- fertility restorers (Ms locus) were developed. These simple PCR markers are valuable tools for the marker-assisted selection of segregating individuals in onion F1 hybrid breeding programs. The present review reveals practical utility and functional effectiveness in the MAS of male-sterile cytoplasm types with nuclear-fertility-restorer locus. Limitations: the environment effect especially temperature may cause male-sterility instability and deviations in segregation ratios for male sterility. Also, maximum exploitation of molecular markers linked to Ms/ms and CMS-S, -T genes aid in the recovery of male-sterile traits requires to a perfect linkage disequilibrium that must be investigated further. Directions for future research: Furthermore, this information could highly have paved the way for hybrid onion development by applicating of the molecular findings to identify onion male sterility, maintainer and male fertility restorer lines.https://jhpr.birjand.ac.ir/article_2624_9598826cb647bbdadf2220f6324d2db3.pdfallium cepacytoplasmic genetic male sterilityhybridspcr markerrestorer lines
spellingShingle Zahra Abbasi
Molecular markers associated with male-sterile cytoplasms and male-fertility restorer locus in onion (Allium cepa): a review
Journal of Horticulture and Postharvest Research
allium cepa
cytoplasmic genetic male sterility
hybrids
pcr marker
restorer lines
title Molecular markers associated with male-sterile cytoplasms and male-fertility restorer locus in onion (Allium cepa): a review
title_full Molecular markers associated with male-sterile cytoplasms and male-fertility restorer locus in onion (Allium cepa): a review
title_fullStr Molecular markers associated with male-sterile cytoplasms and male-fertility restorer locus in onion (Allium cepa): a review
title_full_unstemmed Molecular markers associated with male-sterile cytoplasms and male-fertility restorer locus in onion (Allium cepa): a review
title_short Molecular markers associated with male-sterile cytoplasms and male-fertility restorer locus in onion (Allium cepa): a review
title_sort molecular markers associated with male sterile cytoplasms and male fertility restorer locus in onion allium cepa a review
topic allium cepa
cytoplasmic genetic male sterility
hybrids
pcr marker
restorer lines
url https://jhpr.birjand.ac.ir/article_2624_9598826cb647bbdadf2220f6324d2db3.pdf
work_keys_str_mv AT zahraabbasi molecularmarkersassociatedwithmalesterilecytoplasmsandmalefertilityrestorerlocusinonionalliumcepaareview