Results 61 to 70 of about 1,304 (209)
Bangiales (Rhodophyta) in New Zealand: current state of knowledge and future directions
ABSTRACT Members of the red algal order Bangiales are morphologically simple, with the gametophyte generation consisting of either filaments or blades, and the sporophyte generation consisting of microscopic uniseriate branched filaments. An ancient lineage, the order is distributed worldwide.
Wendy A. Nelson, Giuseppe C. Zuccarello
wiley +1 more source
Wild, perennial, herbaceous plant species have the capacity to provide both agricultural products and ecological services, such as soil stability and efficient absorption, over multiple years. Although perennial, herbaceous species are common in nature, these species were rarely domesticated.
Claudia Ciotir +15 more
wiley +1 more source
Embryo sac development in some South African cultivars of Lantana camara
Twenty embryo sacs from each of 20 different Lantana camara L. cultivars naturalized in South Africa were examined. The normal sexual embryo sacs were monosporic 8-nucleated embryo sacs of the polygonum type and were encountered in 55% of the material ...
J. J. Spies, C. H. Stirton
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Maternal haploid induction in maize via mutation of Gamete Expression protein 1
Summary Doubled haploid (DH) technology, based on haploid induction (HI), is a crucial tool in enhancing crop‐breeding efficiency and has been successfully applied in various plant species. While many HI‐related genes have been identified using diverse strategies, the genetic basis and molecular mechanisms underlying HI remain incompletely understood ...
Yuhui Sun +5 more
wiley +1 more source
In previous studies we reported the identification of several AFLP, RAPD and RFLP molecular markers linked to apospory in Paspalum notatum. The objective of this work was to sequence these markers, obtain their flanking regions by chromosome walking and ...
Maricel Podio +8 more
doaj
SUMMARY Oryza sativa BABY BOOM 1 (OsBBM1), a member of the AP2/ERF family of transcription factors, is expressed from paternal allele in rice zygote and plays a crucial role in initiating zygotic development. However, the mechanism how the paternal OsBBM1 drives this development remains unclear. Rice zygotes with four different gamete combinations with
Nargis Akter +6 more
wiley +1 more source
Small RNA-seq reveals novel regulatory components for apomixis in Paspalum notatum
Background Apomixis is considered an evolutionary deviation of the sexual reproductive pathway leading to the generation of clonal maternal progenies by seeds.
Juan Pablo A. Ortiz +8 more
doaj +1 more source
De novo characterization of the gametophyte transcriptome in bracken fern, Pteridium aquilinum [PDF]
Background Because of their phylogenetic position and unique characteristics of their biology and life cycle, ferns represent an important lineage for studying the evolution of land plants.
Claude W dePamphilis +4 more
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Natural Apospory in Pteridium?
From a population of the bracken fern in New Hampshire, Farlow (1889) described prothalloid outgrowths from the marginal sori. He concluded that natural apospory, i.e. the formation of a gametophyte vegetatively from a sporophyte under normal environmental conditions, had occurred as reported by Druery (1884) and Bower (1884).
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Apospory in Pteris sulcata L. [PDF]
1. The gametophyte generation of Pteris sulcata L. is ordinarily produced by the germination of a spore. 2. The embryo sporophyte is of apogamous origin. 3. The gametophyte generation of Pteris sulcata under certain conditions was produced aposporously. 4.
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