ISSN:
1432-2242
Keywords:
Ribulose 1,5
;
Bisphosphate carboxylase oxygenase
;
Small subunit
;
Nuclear control of Rubisco
;
Medicago
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Summary The response to selection for leaf proteins was studied during three selection cycles. Selection for high total nitrogen content showed 75% heritability, and the levels of both ribulose 1,5-bisphosphate carboxylase oxygenase (Rubisco) and cytoplasmic protein were strongly under nuclear DNA control. High and low protein content were correlated with chloroplast area. Although the amounts of nuclear DNA were similar, the ratio of Rubisco/DNA and chlorophyll/DNA changed during the selection process. It can be concluded that the levels of Rubisco achieved in mature plants of M. sativa are under nuclear DNA control. The possible involvement of small subunit (SSU) genes in controlling these levels is discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00289390
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