In double fertilization, the vegetative cell of the male gametophyte (pollen) germinates and
forms a pollen tube that brings to the female gametophyte two sperm cells that fertilize the egg …

Apomictic plants reproduce asexually through seeds by avoiding both meiosis and fertilization.
Although apomixis is genetically regulated, its core genetic component(s) has not been …

Zygotic genome activation in metazoans typically occurs several hours to a day after
fertilization, and thus maternal RNAs and proteins drive early animal embryo development 1 . In …

Centromeres mediate chromosome segregation and are defined by the centromere-specific
histone H3 variant (CenH3)/centromere protein A (CENP-A). Removal of CenH3 from …

Exposure risk is assessed based on modeling suitable habitat of large pelagic fish and oil
spill scenarios originating at three wells located in the western GM's deep waters. Since the …

Chromatin-remodeling factors regulate the establishment of transcriptional programs during
plant development. Although 42 genes encoding members of the SWI2/SNF2 family have …

Several years of census at two colonies in the Gulf of California (Los Cantiles, situated in the
northern portion and Los Islotes in the south) were used to define the reproductive period of …

… To estimate M, we used data on the total number of pups born and the number of pup deaths
reported by Gutiérrez-Galvez (2015), who made daily counts by foot throughout the 2013 …

The life cycle of flowering plants alternates between a predominant sporophytic (diploid) and
an ephemeral gametophytic (haploid) generation that only occurs in reproductive organs. …

The Orce region has one of the best late Pliocene and early Pleistocene continental paleobiological
records of Europe. It is situated in the northeastern sector of the intramontane Guadix…