Results 81 to 90 of about 72,523 (352)

Mirror gametes donation

open access: yesJournal of Psychosomatic Obstetrics & Gynecology, 2007
Candidate recipients of donor gametes have a moral obligation to make a contribution to the system from which they benefit by reciprocating. They can do this as a couple when the partner of the person who has no usable gametes donates and receives the mirror gametes in return.
openaire   +2 more sources

Defense heterosis as a novel plant protection strategy: From theory to breeding practice

open access: yesNew Plant Protection, EarlyView.
Defense heterosis, the enhanced disease resistance of hybrids compared to their parents, has evolved from early observations of hybrid vigor to a novel research concept. Advances are now clarifying its diverse genetic and molecular mechanisms across various plant–pathogen interactions.
Kaiqi Xu, Xue Li, Fangfang Li
wiley   +1 more source

Natural Variation in Epigenetic Pathways Affects the Specification of Female Gamete Precursors in Arabidopsis[OPEN]

open access: yesThe Plant Cell, 2015
Comparative analysis in Arabidopsis ecotypes, hybrids, and tetraploids revealed the presence of natural variation in early reproductive development that depends on the function of epigenetic pathways.
Daniel Rodríguez-Leal   +3 more
semanticscholar   +1 more source

Wheat breeding approaches for designing wheat to thrive in a warmer world

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Wheat is a vital food crop, accounting for approximately 20% of daily calories and protein consumed worldwide. However, modern‐day wheat is under pressure from global change. The improvement rate of wheat yields is not keeping up with the demand of our growing population. Furthermore, abiotic and biotic stressors are becoming more prevalent. This paper
Jake Hill, Surbhi Grewal, Stella Edwards
wiley   +1 more source

Counseling, evaluation and screening of donor and recipient in third party reproduction and the matching process

open access: yesPayesh, 2007
Objective(s): Development of Assisted Reproductive Technologies (ART) and the successful birth of the first child in 1978, new therapeutic options have become available for infertile couples.
Behjati Ardakani Z.   +6 more
doaj  

mRNA Expression and Role of PPARγ and PPARδ in Bovine Preimplantation Embryos Depending on the Quality and Developmental Stage

open access: yesAnimals, 2020
Peroxisome proliferator-activated receptors (PPARs), a nuclear receptors for prostacyclin (PGI2) have been recognized as being essential for early embryo development.
Katarzyna Suwik   +6 more
doaj   +1 more source

Speciation with gene flow

open access: yesPLANTS, PEOPLE, PLANET, EarlyView.
Biodiversity is threatened by human activities, with extinction debt accumulating rapidly. Many of these activities change the connectivity of populations, fragmenting existing population systems or bringing previously isolated populations or species into contact.
Zhiqin Long   +7 more
wiley   +1 more source

Children rights in gamete donation

open access: yesPayesh, 2007
Objective(s): Children as members of the human community have certain rights, and all schools of law (religious or conventional) recognize these rights. So the way a child is born must not be held as a reason to deprive him/her of part of his/her rights.
Merghati T.
doaj  

Introducing Epigenetics Into Secondary School Classrooms—An Educational Design Study

open access: yesScience Education, EarlyView.
ABSTRACT Although epigenetics represents an emerging field of biological research with a potentially large influence on society as well as conceptual implications on how genetics is understood, it is often not a part of the biology education provided at secondary schools.
Karin Thörne   +2 more
wiley   +1 more source

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