Sperm Storage in a Family-Living Lizard, the Tree Skink (Egernia striolata)

被引:4
|
作者
Riley, Julia L. [1 ,2 ,4 ]
Stow, Adam [1 ]
Bolton, Peri E. [1 ,5 ]
Dennison, Siobhan [1 ]
Byrne, Richard W. [3 ]
Whiting, Martin J. [1 ]
机构
[1] Macquarie Univ, Dept Biol Sci, Sydney, NSW, Australia
[2] Dalhousie Univ, Dept Biol, Halifax, NS, Canada
[3] Univ St Andrews, Sch Psychol & Neurosci, St Andrews, Fife, Scotland
[4] Mt Allison Univ, Dept Biol, Sackville, NB, Canada
[5] East Carolina Univ, Dept Biol, Greenville, NC 27858 USA
基金
澳大利亚研究理事会; 加拿大自然科学与工程研究理事会;
关键词
DNA profiling; genetic bet-hedging; heterozygosity; multiple mating; paternity; sexual conflict; INCREASE OFFSPRING HETEROZYGOSITY; MOLECULAR-GENETIC EVIDENCE; PAIRWISE RELATEDNESS; MULTIPLE PATERNITY; MATE CHOICE; FACULTATIVE PARTHENOGENESIS; SIMULTANEOUS POLYANDRY; SIBSHIP INFERENCE; SEXUAL SELECTION; R-PACKAGE;
D O I
10.1093/jhered/esab048
中图分类号
Q [生物科学];
学科分类号
07 ; 0710 ; 09 ;
摘要
The ability to produce viable offspring without recently mating, either through sperm storage or parthenogenesis, can provide fitness advantages under a suite of challenging ecological scenarios. Using genetic analysis, we demonstrate that 3 wild-caught female Tree Skinks (Egernia striolata) reproduced in captivity with no access to males for over a year, and that this is best explained by sperm storage. To the best of our knowledge, this is the first time female sperm storage has been documented in any monogamous family-living reptile, including social Australian egerniine skinks (from the subfamily Egerniinae). Furthermore, by using paternal reconstruction of genotypes we show that captive-born offspring produced by the same females in the preceding year, presumably without sperm storage, were sired by different males. We qualitatively compared aspects of these females' mates and offspring between years. The parents of each litter were unrelated, but paternal and offspring genotypes from litters resulting from stored sperm were more heterozygous than those inferred to be from recent matings. Family-living egerniine skinks generally have low rates of multiple paternity, yet our study suggests that female sperm storage, potentially from outside social partners, offers the real possibility of benefits. Possible benefits include increasing genetic compatibility of mates and avoiding inbreeding depression via cryptic female choice. Sperm storage in Tree Skinks, a family-living lizard with a monogamous mating system, suggests that females may bet-hedge through extra-pair copulation with more heterozygous males, reinforcing the idea that females could have more control on reproductive outcomes than previously thought.
引用
收藏
页码:526 / 534
页数:9
相关论文
共 12 条
  • [1] Socioecology of the Australian Tree Skink (Egernia striolata)
    Riley, Julia L.
    Noble, Daniel W. A.
    Stow, Adam J.
    Bolton, Peri E.
    While, Geoffrey M.
    Dennison, Siobhan
    Byrne, Richard W.
    Whiting, Martin J.
    [J]. FRONTIERS IN ECOLOGY AND EVOLUTION, 2021, 09
  • [2] Spontaneous quantity discrimination in a family-living lizard
    Szabo, Birgit
    Noble, Daniel W. A.
    McCloghry, Kaitlin J.
    Monteiro, Marco E. S.
    Whiting, Martin J.
    Ridley, Amanda
    [J]. BEHAVIORAL ECOLOGY, 2021, 32 (04) : 686 - 694
  • [3] Network structure and parasite transmission in a group living lizard, the gidgee skink, Egernia stokesii
    Godfrey, Stephanie S.
    Bull, C. Michael
    James, Richard
    Murray, Kris
    [J]. BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY, 2009, 63 (07) : 1045 - 1056
  • [4] Network structure and parasite transmission in a group living lizard, the gidgee skink, Egernia stokesii
    Stephanie S. Godfrey
    C. Michael Bull
    Richard James
    Kris Murray
    [J]. Behavioral Ecology and Sociobiology, 2009, 63 : 1045 - 1056
  • [5] Learning ability is unaffected by isolation rearing in a family-living lizard
    Julia L. Riley
    Anna Küchler
    Théo Damasio
    Daniel W. A. Noble
    Richard W. Byrne
    Martin J. Whiting
    [J]. Behavioral Ecology and Sociobiology, 2018, 72
  • [6] Early social environment influences the behaviour of a family-living lizard
    Riley, Julia L.
    Noble, Daniel W. A.
    Byrne, Richard W.
    Whiting, Martin J.
    [J]. ROYAL SOCIETY OPEN SCIENCE, 2017, 4 (05): : 1 - 16
  • [7] Learning ability is unaffected by isolation rearing in a family-living lizard
    Riley, Julia L.
    Kuchler, Anna
    Damasio, Theo
    Noble, Daniel W. A.
    Byrne, Richard W.
    Whiting, Martin J.
    [J]. BEHAVIORAL ECOLOGY AND SOCIOBIOLOGY, 2018, 72 (02)
  • [8] Isolation rearing does not constrain social plasticity in a family-living lizard
    Riley, Julia L.
    Guidou, Come
    Fryns, Caroline
    Mourier, Johann
    Leu, Stephan T.
    Noble, Daniel W. A.
    Byrne, Richard W.
    Whiting, Martin J.
    [J]. BEHAVIORAL ECOLOGY, 2018, 29 (03) : 563 - 573
  • [9] Does social environment influence learning ability in a family-living lizard?
    Julia L. Riley
    Daniel W. A. Noble
    Richard W. Byrne
    Martin J. Whiting
    [J]. Animal Cognition, 2017, 20 : 449 - 458
  • [10] Fine-scale genetic structuring in a group-living lizard, the gidgee skink (Egernia stokesii)
    Pearson, Sarah K.
    Johnston, Gregory R.
    Bull, C. Michael
    Fenner, Aaron L.
    Gardner, Michael G.
    [J]. AUSTRAL ECOLOGY, 2020, 45 (04) : 435 - 443