Definition of polyembryony in English:
polyembryony
noun ˌpɒlɪˈɛmbrɪəniˌpälēˈembrēənē
mass nounBiology The formation of more than one embryo from a single fertilized ovum or in a single seed.
Example sentencesExamples
- On arriving in Texas, he spent most of his research efforts studying polyembryony, first in the armadillo, and then in various parasitic wasps.
- Within the sporocyst, a special form of asexual reproduction, known as polyembryony, then occurs.
- A characteristic feature of gymnosperms is polyembryony manifested in the formation of more than one embryo in immature seed.
- Three-banded armadillos developed a unique antipredator strategy by entirely rolling up into a ball, and nine-banded armadillos are the only vertebrates to reproduce by obligate monozygotic polyembryony.
- The miracidia will then penetrate prosobranch snails, Elimia symmetrica, where they will transform first into mother sporocysts, which will give rise to daughter sporocysts via polyembryony.
Derivatives
adjective
Biology Over half of the seeds produced in both the field and greenhouse experiments were polyembryonic, producing two to four seedlings.
Example sentencesExamples
- At the end of the experiment, seedlings were gently removed from the soil to be sure that polyembryonic individuals were indeed separate and not simply multiple stems of a single individual.
- Interestingly, multiple lineages of Hymenopterans have switched from syncytial to holoblastic embryonic cleavage, or to polyembryonic development.
- Patterson's early work on polyembryonic hymenoptera was almost forgotten for 75 years.
- Polyembryony was further characterized by determining DNA content and fingerprints of embryos obtained from 157 polyembryonic kernels.