Male reproductive organ-specific genes in the dioecious plant Silene latifolia
نویسندگان
چکیده
منابع مشابه
Premature arrest of the male flower meristem precedes sexual dimorphism in the dioecious plant Silene latifolia.
Most dioecious plant species are believed to derive from hermaphrodite ancestors. The regulatory pathways that have been modified during evolution of the hermaphrodite ancestors and led to the emergence of dioecious species still remain unknown. Silene latifolia is a dioecious plant species harboring XY sex chromosomes. To identify the molecular mechanisms involved in female organ suppression i...
متن کاملHerbivory affects male and female reproductive success differently in dioecious Silene latifolia
In dioecious plants, reproductive efforts of male and female plants can be differentially affected by herbivory due to sex-specific allocation and re-modulation of resources. Here, we investigate the effects of foliar herbivory by the polyphagous species Spodoptera littoralis (Boisduval) (Lepidoptera: Noctuidae) on male and female reproductive traits of Silene latifolia (Poir.) (Caryophyllaceae...
متن کاملIsolation and characterization of two homeodomain leucine zipper genes from the dioecious plant Silene latifolia.
Homeodomain leucine zipper (HD-Zip) genes encode transcription factors that are characterized by both a homeodomain and a leucine zipper motif. Two HD-Zip genes were isolated from cDNA of the male flower bud of the dioecious plant Silene latifolia. The two isolated genes, SlHDL1 and SlHDL2, encode proteins with the characteristics of HD-Zip transcription factors belonging to HD-Zip classes I an...
متن کاملEvidence for Degeneration of the Y Chromosome in the Dioecious Plant Silene latifolia
The human Y--probably because of its nonrecombining nature--has lost 97% of its genes since X and Y chromosomes started to diverge [1, 2]. There are clear signs of degeneration in the Drosophila miranda neoY chromosome (an autosome fused to the Y chromosome), with neoY genes showing faster protein evolution [3-6], accumulation of unpreferred codons [6], more insertions of transposable elements ...
متن کاملA SUPERMAN-like gene is exclusively expressed in female flowers of the dioecious plant Silene latifolia.
To elucidate the mechanism(s) underlying dioecious flower development, the present study analyzed a SUPERMAN (SUP) homolog, SlSUP, which was identified in Silene latifolia. The sex of this plant is determined by heteromorphic X and Y sex chromosomes. It was revealed that SlSUP is a single-copy autosomal gene expressed exclusively in female flowers. Introduction of a genomic copy of SlSUP into t...
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ژورنال
عنوان ژورنال: PLANT MORPHOLOGY
سال: 1998
ISSN: 1884-4154,0918-9726
DOI: 10.5685/plmorphol.10.76