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Classification of Male‐Sterile Cytoplasms in Maize ( Zea mays L.) 1
Author(s) -
Beckett J. B.
Publication year - 1971
Publication title -
crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.76
H-Index - 147
eISSN - 1435-0653
pISSN - 0011-183X
DOI - 10.2135/cropsci1971.0011183x001100050037xa
Subject(s) - biology , cytoplasm , zea mays , cytoplasmic male sterility , botany , inbred strain , genetics , group (periodic table) , gene , agronomy , chemistry , organic chemistry
Summary Thirty lines with male‐sterile cytoplasm were backcrossed to a series of maize ( Zea mays L.) inbreds. Each cytoplasm gave male‐sterile plants in certain inbred backgrounds and partially or completely male‐fertile plants in other backgrounds. The cytoplasms were divided into groups according to the pattern of fertility restoration observed. Each group appears to be composed of similar if not identical cytoplasms. The major groups are designated the Texas Group, the S Group, and the C Group. A fourth group (P) probably belongs to the Texas Group but may be distinct. A few sources of cytoplasm require further testing before they can be assigned to a group. C cytoplasm is assigned the permanent genetic symbol cms 3 .