Premium
Perspective and application of molecular markers linked to the cytoplasm types and male‐fertility restorer locus in onion ( Allium cepa )
Author(s) -
Manjunathagowda Dalasanuru Chandregowda
Publication year - 2021
Publication title -
plant breeding
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.583
H-Index - 71
eISSN - 1439-0523
pISSN - 0179-9541
DOI - 10.1111/pbr.12948
Subject(s) - biology , software maintainer , cytoplasmic male sterility , hybrid , locus (genetics) , sterility , fertility , molecular marker , genetics , allium , heterosis , genetic marker , hybrid seed , marker assisted selection , microbiology and biotechnology , botany , gene , population , demography , sociology
Abstract The male sterility trait is an economically essential feature for the exploitation of hybrid vigour in onions; hence, scientists have looked into the molecular component of male sterility in onions. As a result, numerous molecular 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. The discovered markers have proven to be helpful in the effective selection and isolation of male‐sterile lines, their maintainer lines and restorer‐of‐fertility lines. These lines are required for breeding F 1 hybrid to harness heterosis through marker‐assisted selection (MAS) of cytoplasmic genotypes with Ms or ms loci. Thus, the study came up with a compilation of molecular markers, by revealing their molecular perspective, practical utility and functional effectiveness in the MAS of male‐sterile cytoplasm types with nuclear‐fertility‐restorer locus, to speed up onion breeding, development of F 1 hybrids and production of pure hybrid seeds.