气候变化领域集成服务门户(CCPortal): Temperature and photoperiod effects on sex determination in Leuresthes tenuis (fish)

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DOI	https://doi.org/10.1594/PANGAEA.835603
	Temperature and photoperiod effects on sex determination in Leuresthes tenuis (fish)
	Brown; Elizabeth E; Baumann; Hannes; Conover; David O
发布日期	2014-09-08
数据集类型	dataset
英文简介	In some gonochoristic species, sex is influenced not only by genotype at conception but also by the environment that offspring experience during early ontogeny (termed environmental sex determination or ESD). ESD is thought to be adaptive when seasonal variations in environmental conditions provide a sex-specific fitness advantage. In vertebrates, temperature is the most common determinant of sex, and seasonal variation in temperature serves as a temporal cue of environmental quality such as length of the growing season. Some environments, however, lack strong seasonal temperature fluctuations and other cues, particularly photoperiod, may provide a more reliable indicator of the environment offspring enter. We tested this hypothesis by rearing the offspring of the California grunion (Leuresthes tenuis, Ayres), which experiences low seasonal temperature variation in nature, under common garden conditions at three temperature and two photoperiod treatments. Our experiments revealed that both temperature and photoperiod significantly affected sex ratios in L. tenuis. More females were produced at cooler temperatures and longer day lengths, which is consistent with female biased sex ratios early in the breeding season, and likely adaptive through increased female size and fecundity. To our knowledge, this is the first documented case of photoperiod-dependent sex determination in a gonochoristic vertebrate.
空间范围	Median Latitude: 32.950000 * Median Longitude: -117.700000 * South-bound Latitude: 31.900000 * West-bound Longitude: -118.800000 * North-bound Latitude: 34.000000 * East-bound Longitude: -116.600000
时间范围	2010-06-30T00:00:00 - 2010-06-30T00:00:00
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/217332
推荐引用方式 GB/T 7714	Brown,Elizabeth E,Baumann,et al. Temperature and photoperiod effects on sex determination in Leuresthes tenuis (fish).2014-09-08.https://doi.org/10.1594/PANGAEA.835603.