Research output: Contribution to journal › Article › peer-review
Determination of the Female-Biased Sex Ratio in Some Young-of-the-Year and Spawner Samples of the Threespine Stickleback Gasterosteus aculeatus by Environmental, Not Genetic, Factors. / Artamonova, V. S.; Bardukov, N. V.; Golovin, P. V.; Ivanova, T. S.; Ivanov, M. V.; Lajus, D. L.; Makhrov, A. A.
In: Biology Bulletin, Vol. 48, No. 5, 09.2021, p. 577-587.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Determination of the Female-Biased Sex Ratio in Some Young-of-the-Year and Spawner Samples of the Threespine Stickleback Gasterosteus aculeatus by Environmental, Not Genetic, Factors
AU - Artamonova, V. S.
AU - Bardukov, N. V.
AU - Golovin, P. V.
AU - Ivanova, T. S.
AU - Ivanov, M. V.
AU - Lajus, D. L.
AU - Makhrov, A. A.
N1 - Publisher Copyright: © 2021, Pleiades Publishing, Inc.
PY - 2021/9
Y1 - 2021/9
N2 - Abstract: Genetic markers (sex-specific loci of Ga1 and Ga2) have been used to analyze the sex ratio of the threespine stickleback at different stages of ontogenesis. The progeny of all individually tested females includes both males and females, and no significant departures from a 1 : 1 sex ratio has been found in embryos from the natural nests. Juveniles did not demonstrate a sex bias up to one-and-a-half or two months of age, but in older juveniles, females prevailed (this fact has been reported for the first time). Females prevail among spawners, which mostly results from the predominant elimination of males during the spawning and post-spawning periods. The possible causes of this predominance are discussed.
AB - Abstract: Genetic markers (sex-specific loci of Ga1 and Ga2) have been used to analyze the sex ratio of the threespine stickleback at different stages of ontogenesis. The progeny of all individually tested females includes both males and females, and no significant departures from a 1 : 1 sex ratio has been found in embryos from the natural nests. Juveniles did not demonstrate a sex bias up to one-and-a-half or two months of age, but in older juveniles, females prevailed (this fact has been reported for the first time). Females prevail among spawners, which mostly results from the predominant elimination of males during the spawning and post-spawning periods. The possible causes of this predominance are discussed.
UR - http://www.scopus.com/inward/record.url?scp=85115132563&partnerID=8YFLogxK
U2 - 10.1134/S1062359021050034
DO - 10.1134/S1062359021050034
M3 - Article
AN - SCOPUS:85115132563
VL - 48
SP - 577
EP - 587
JO - Biology Bulletin
JF - Biology Bulletin
SN - 1062-3590
IS - 5
ER -
ID: 94718457