Parental conflict overcome

Article Abstract:

Researchers have found that a viable seed is developed if the maternal mechanism controlling endosperm development is disabled when only one male gamete triggers embryogenesis. The results show that existing Polycomb group (PcG) machinery is immobilized to participate in seed development during the evolution of the double-fertilization system in flowering plants.

United Kingdom, Plant population genetics, Fertilization of plants, Plant fertilization, Report

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New home for tiny aquatics

Article Abstract:

The members of the family Hydatellaceae, the diminutive, moss-like, aquatic plants Hydatella and Trithuria are the closest living relatives of water-lilies and their allies. The present ideas of relationships among the extant representatives of early angiosperm lineages are conformed by repositioning of the Hydatellaceae.

Research and Development in the Physical, Engineering, and Life Sciences, Plant Genetics, Aquatic plants

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Ancient microRNA target sequences in plants: a gene-regulation mechanism in plants predates the emergence of flowering species

Article Abstract:

A study conducted on microRNAs of flowering plants indicate that the target sequence of two microRNAs known to regulate genes in the class-III homeodomain-leucine zipper is conserved in homologous sequences. The results further add that messenger RNAs from these genes are split within the same microRNA-binding site.

RNA

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