Open AccessReciprocal extrachromosomal inheritance in rye ( Secale cereale L.)
Author(s) -
FRÖST SUNE,
VAIVARS LUDVIGS,
CARLBOM CURT
Publication year - 1970
Publication title -
hereditas
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.819
H-Index - 50
eISSN - 1601-5223
pISSN - 0018-0661
DOI - 10.1111/j.1601-5223.1970.tb02323.x
Subject(s) - biology , secale , selfing , non mendelian inheritance , extrachromosomal dna , stamen , plastid , mutant , botany , sterility , genetics , reciprocal cross , pollen , hybrid , genome , gene , chloroplast , population , demography , sociology , mitochondrial dna
In an inbred line of Steel rye (Stålråg), a chlorophyll mutant (status paralbomaculatus ) arose spontaneously that displayed both extrachromosomal maternal and paternal inheritance in crosses. Striata plants gave rise to albino, striata , and normal offspring when selfed. When the striata mutant was used as the maternal or paternal parent and crossed with normal chlorophyllous plants, the progenies were comprised of striata and normal individuals. Upon selfing, the F 1 and F 2 striata plants gave rise to variable non‐Mendelian ratios of albina, striata , and normal offspring–the ratios being proportionate to the amount of normal plastid‐bearing to defective plastid‐bearing tissue in the germ lines (anthers and ovaries). The striata mutant of Steel rye is believed to be the first confirmed case of a status paralbomaculatus mutant in the Gramineae. Thin‐layer chromatographic studies confirmed that flavanoid and phenolic compounds are prevalent in the plastids in Steel rye. Seven of the 10 spots in the composite chromatograms of 19 F 3 plants representing the three plastom phenotypes displayed differences.