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Organelle Genome Diversity in Sorghum: Male‐Sterile Cytoplasms 1
Author(s) -
Pring D. R.,
Conde M. F.,
Schertz K. F.
Publication year - 1982
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/cropsci1982.0011183x002200020049x
Subject(s) - biology , cytoplasmic male sterility , mitochondrial dna , non mendelian inheritance , genome , genetics , sorghum , extranuclear inheritance , restriction enzyme , chloroplast dna , sterility , cytoplasm , organelle , restriction fragment length polymorphism , software maintainer , dna , gene , polymerase chain reaction , agronomy
Seventeen sorghum [ Sorghum, bicolor (L.) Moench] cytoplasms, 16 of which were male‐sterile, were compared by restriction endonuclease fragment analysis of mitochondrial (mt) and chloroplast (ct) DNA in a survey of cytoplasmic variation in Sorghum spp . The widely used malesterile (milo) cytoplasm exhibited mt and ctDNAs which differed from normal, fertile (kafir) cytoplasm. Seven groups of male‐sterile cytoplasms were differentiated by mtDNA restriction fragment differences, while only three were differentiated by ctDNA; thus a greater degree of variability of the mitochondrial genome is suggested. Strict maternal inheritance of mt and ctDNAs was demonstrated. Both organelle DNAs appear to share similar evolutionary relationships based on restriction fragment patterns. The potential utility of organelle DNA variation in the identification and differentiation of male sterility sources in sorghum is discussed.