incompatibility and genetic divergence of Pacific and Kumamoto oysters, Crassostrea gigas and C.
The QTL and polygenes were in gametic
synchrony is defined to be synchronism in timing of gamete release within a breeding population, and it is an important factor in maximizing the breeding population size.
This program uses an aposteriori method to group the samples into genetic clusters (populations) that reduce Hardy-Weinberg and gametic
disequilibrium, thus reducing the biases associated with designations resulting from sampling locality.
e]) resulting from few animals being used as broodstock, as well as nonequal gametic
viability and/or differential spawning conditions of the potential parents (Hedgecock & Sly 1990, Hedgecock 1994).
incompatibility results in partial reproductive isolation between C.
One option to ensure both gametic
and embryonic material regularly throughout the year is the cryobanking of gametes (both sperm and oocytes) and embryos, as proposed several times (Smith et al.
Prezygotic mechanisms include ecological separation, behavioral separation, and gametic
marginatus according to the histological characteristics of the gonads: 0, sexual rest; I, commencement of gametogenesis; II, gametic
growth; III, reproduction; and IV, resorption of the gonad.
emission apparently occurred from March to May in the first site and from February to May in the second site.
It is well established that UVR induces DNA and protein damage and, without protection, gametic
stages are especially vulnerable.
Waples 1989) or gametic
disequilibrium within years (Bartley et al.