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Barley AJ, Cordes JE, Walker JM, Thomson RC. Genetic diversity and the origins of parthenogenesis in the teiid lizard Aspidoscelis laredoensis. Mol Ecol 2021; 31:266-278. [PMID: 34614250 DOI: 10.1111/mec.16213] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Revised: 09/14/2021] [Accepted: 09/30/2021] [Indexed: 01/25/2023]
Abstract
Unisexual vertebrates typically form through hybridization events between sexual species in which reproductive mode transitions occur in the hybrid offspring. This evolutionary history is thought to have important consequences for the ecology of unisexual lineages and their interactions with congeners in natural communities. However, these consequences have proven challenging to study owing to uncertainty about patterns of population genetic diversity in unisexual lineages. Of particular interest is resolving the contribution of historical hybridization events versus post formational mutation to patterns of genetic diversity in nature. Here we use restriction site associated DNA genotyping to evaluate genetic diversity and demographic history in Aspidoscelis laredoensis, a diploid unisexual lizard species from the vicinity of the Rio Grande River in southern Texas and northern Mexico. The sexual progenitor species from which one or more lineages are derived also occur in the Rio Grande Valley region, although patterns of distribution across individual sites are quite variable. Results from population genetic and phylogenetic analyses resolved the major axes of genetic variation in this species and highlight how these match predictions based on historical patterns of hybridization. We also found discordance between results of demographic modelling using different statistical approaches with the genomic data. We discuss these insights within the context of the ecological and evolutionary mechanisms that generate and maintain lineage diversity in unisexual species. As one of the most dynamic, intriguing, and geographically well investigated groups of whiptail lizards, these species hold substantial promise for future studies on the constraints of diversification in unisexual vertebrates.
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Affiliation(s)
- Anthony J Barley
- School of Life Sciences, University of Hawai'i, Honolulu, Hawai'I, USA
| | - James E Cordes
- Division of Sciences and Mathematics, Louisiana State University Eunice, Eunice, Louisiana, USA
| | - James M Walker
- Department of Biological Sciences, University of Arkansas, Fayetteville, Arkansas, USA
| | - Robert C Thomson
- School of Life Sciences, University of Hawai'i, Honolulu, Hawai'I, USA
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2
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Barley AJ, Reeder TW, Nieto-Montes de Oca A, Cole CJ, Thomson RC. A New Diploid Parthenogenetic Whiptail Lizard from Sonora, Mexico, Is the "Missing Link" in the Evolutionary Transition to Polyploidy. Am Nat 2021; 198:295-309. [PMID: 34260872 DOI: 10.1086/715056] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
AbstractTransitions between sexual and unisexual reproductive modes have significant consequences for the evolutionary trajectories of species. These transitions have occurred numerous times in vertebrates and are frequently mediated by hybridization events. Triploid unisexual vertebrates are thought to arise through hybridization between individuals of a diploid unisexual lineage and a sexual species, although additional evidence that confirms this mechanism is needed in numerous groups. North American whiptail lizards (Aspidoscelis) are notable for being one of the largest radiations of unisexual vertebrates, and the most diverse group of Aspidoscelis includes numerous triploid lineages that have no known diploid unisexual ancestors. This pattern of "missing" ancestors may result from the short evolutionary life span of unisexual lineages or the selective advantages of polyploidy, or it could suggest that alternative mechanisms of triploid formation are operating in nature. We leverage genomic, morphological, and karyotypic data to describe a new diploid unisexual whiptail and show that it is likely the unisexual progenitor of an extant triploid lineage, A. opatae. We also resolve patterns of polyploidization within the A. sexlineatus species group and test predictions about the phenotypic outcomes of hybridization.
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3
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Cole CJ, Cordes JE, Walker JM. Karyotypes of the North American Parthenogenetic Whiptail Lizard Aspidoscelis velox, and Return of Aspidoscelis innotatus to the Synonymy of A. velox (Reptilia: Squamata: Teiidae). AMERICAN MUSEUM NOVITATES 2019. [DOI: 10.1206/3936.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Affiliation(s)
- Charles J. Cole
- Division of Vertebrate Zoology (Herpetology), American Museum of Natural History
| | - James E. Cordes
- Division of Sciences and Mathematics, Louisiana State University Eunice, LA
| | - James M. Walker
- Department of Biological Sciences, University of Arkansas, Fayetteville, AR
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4
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The Second Known Tetraploid Species of Parthenogenetic Tetrapod (Reptilia: Squamata: Teiidae): Description, Reproduction, Comparisons With Ancestral Taxa, And Origins Of Multiple Clones. ACTA ACUST UNITED AC 2017. [DOI: 10.3099/mcz37.1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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5
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Parker ED. PHENOTYPIC CONSEQUENCES OF PARTHENOGENESIS IN CNEMIDOPHORUS LIZARDS. I. VARIABILITY IN PARTHENOGENETIC AND SEXUAL POPULATIONS. Evolution 2017; 33:1150-1166. [PMID: 28563919 DOI: 10.1111/j.1558-5646.1979.tb04769.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/1978] [Revised: 03/05/1979] [Indexed: 11/28/2022]
Affiliation(s)
- E Davis Parker
- Department of Biology, University of Rochester, Rochester, N.Y., 14627
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6
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Moore WS. COMPONENTS OF FITNESS IN THE UNISEXUAL FISH
POECILIOPSIS MONACHA‐OCCIDENTALIS. Evolution 2017; 30:564-578. [DOI: 10.1111/j.1558-5646.1976.tb00934.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/1975] [Revised: 11/17/1975] [Indexed: 11/26/2022]
Affiliation(s)
- William S. Moore
- Department of Biology Wayne State University Detroit Michigan 48202
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7
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Densmore LD, Moritz CC, Wright JW, Brown WM. MITOCHONDRIAL-DNA ANALYSES AND THE ORIGIN AND RELATIVE AGE OF PARTHENOGENETIC LIZARDS (GENUS CNEMIDOPHORUS). IV. NINE SEXLINEATUS-GROUP UNISEXUALS. Evolution 2017; 43:969-983. [PMID: 28564158 DOI: 10.1111/j.1558-5646.1989.tb02543.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/1987] [Accepted: 02/27/1989] [Indexed: 11/30/2022]
Abstract
Mitochondrial DNAs (mtDNAs) from nine morphologically distinct unisexual species and five bisexual species of lizards, all from the sexlineatus species-group of Cnemidophorus, were compared using restriction endonucleases. The unisexual lizards have mtDNAs that are identical at all or nearly all of the 128 sites cleaved. Although differing little in sequence, some mtDNAs differed in size due to the presence of tandem sequence duplications. Phylogenetic analysis of cleavage maps indicates that the mtDNAs of the unisexuals are most similar to that of the bisexual species C. inornatus. Considerable mtDNA diversity exists among C. inornatus populations, and one geographically restricted subspecies, C. i. arizonae, was identified as the most probable maternal ancestor of all nine unisexuals. All but one of these are triploid, and all have at least one C. inornatus gene complement. This, together with the homogeneity of their mtDNAs, suggests that all stem from one or a small number of allodiploid females (presumably parthenogenetic) that originated in a restricted geographic area in the recent past. These data, when combined with those from allozyme studies, preclude the possibility that most of the triploid unisexuals could have arisen via fertilization of an unreduced diploid ovum from one species by a haploid sperm from a different species.
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Affiliation(s)
- Llewellyn D Densmore
- Laboratory of Molecular Systematics, Museum of Zoology, and Department of Biology, University of Michigan, Ann Arbor, MI, 48109-1079
| | - Craig C Moritz
- Laboratory of Molecular Systematics, Museum of Zoology, and Department of Biology, University of Michigan, Ann Arbor, MI, 48109-1079
| | - John W Wright
- Section of Herpetology, Natural History Museum of Los Angeles County, Los Angeles, CA, 90007
| | - Wesley M Brown
- Laboratory of Molecular Systematics, Museum of Zoology, and Department of Biology, University of Michigan, Ann Arbor, MI, 48109-1079
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8
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Parker ED. PHENOTYPIC CONSEQUENCES OF PARTHENOGENESIS IN
CNEMIDOPHORUS
LIZARDS. II. SIMILARITY OF
C. TESSELATUS
TO ITS SEXUAL PARENTAL SPECIES. Evolution 2017; 33:1167-1179. [DOI: 10.1111/j.1558-5646.1979.tb04770.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/1978] [Revised: 03/05/1979] [Indexed: 10/19/2022]
Affiliation(s)
- E. Davis Parker
- Department of Biology University of Rochester Rochester N.Y. 14627
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9
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Densmore LD, Wright JW, Brown WM. MITOCHONDRIAL-DNA ANALYSES AND THE ORIGIN AND RELATIVE AGE OF PARTHENOGENETIC LIZARDS (GENUS CNEMIDOPHORUS). II. C. NEOMEXICANUS AND THE C. TESSELATUS COMPLEX. Evolution 2017; 43:943-957. [PMID: 28564146 DOI: 10.1111/j.1558-5646.1989.tb02541.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/1987] [Accepted: 02/27/1989] [Indexed: 11/29/2022]
Abstract
Restriction-endonuclease analyses of mitochondrial DNAs from all six color-pattern classes (A-F) of the parthenogenetic lizard Cnemidophorus tesselatus yield estimates of nucleotide divergence that are extremely low (π = 0.06%). In digests of 75 C. tesselatus mtDNAs with 20 different restriction enzymes, only four cleavage-site differences were noted, three of which were found only in pattern class F. The near-identity of these mitochondrial DNAs with those from C. tigris marmoratus shows unequivocally that C. t. marmoratus was the species to which the maternal parent(s) of all C. tesselatus belonged. Mitochondrial-DNA analyses of another unisexual species, C. neomexicanus, led to the same conclusion. Mitochondrial DNAs from 96 individuals of these three species were extensively analyzed for cleavage-site differences; only 13 were found. The low interspecific sequence diversity found within C. neomexicanus and the C. tesselatus complex suggests a recent origin for both. Based on diversity data for mitochondrial DNA and allozymes, we estimate that a minimum of two hybridizations were required to produce all diploid C. tesselatus (C-F), followed by at least two more to generate the triploids (A and B). These data and those presented in the two accompanying papers indicate that events leading to parthenogenesis in Cnemidophorus are rare and strengthen the hypothesis that interspecific hybridization is a necessary, causal event in its establishment.
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Affiliation(s)
- Llewellyn D Densmore
- Laboratory of Molecular Systematics, Museum of Zoology, and Department of Biology, University of Michigan, Ann Arbor, MI, 48109-1079
| | - John W Wright
- Section of Herpetology, Natural History Museum of Los Angeles County, Los Angeles, CA, 90007
| | - Wesley M Brown
- Laboratory of Molecular Systematics, Museum of Zoology, and Department of Biology, University of Michigan, Ann Arbor, MI, 48109-1079
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10
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Newton AA, Schnittker RR, Yu Z, Munday SS, Baumann DP, Neaves WB, Baumann P. Widespread failure to complete meiosis does not impair fecundity in parthenogenetic whiptail lizards. Development 2016; 143:4486-4494. [PMID: 27802173 PMCID: PMC5201048 DOI: 10.1242/dev.141283] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2016] [Accepted: 10/12/2016] [Indexed: 11/20/2022]
Abstract
Parthenogenetic species of whiptail lizards in the genus Aspidoscelis constitute a striking example of speciation by hybridization, in which first-generation hybrids instantly attain reproductive isolation and procreate as clonal all-female lineages. Production of eggs containing a full complement of chromosomes in the absence of fertilization involves genome duplication prior to the meiotic divisions. In these pseudo-tetraploid oocytes, pairing and recombination occur exclusively between identical chromosomes instead of homologs; a deviation from the normal meiotic program that maintains heterozygosity. Whether pseudo-tetraploid cells arise early in germ cell development or just prior to meiosis has remained unclear. We now show that in the obligate parthenogenetic species A. neomexicana the vast majority of oocytes enter meiosis as diploid cells. Telomere bouquet formation is normal, but synapsis fails and oocytes accumulate in large numbers at the pairing stage. Pseudo-tetraploid cells are exceedingly rare in early meiotic prophase, but they are the only cells that progress into diplotene. Despite the widespread failure to increase ploidy prior to entering meiosis, the fecundity of parthenogenetic A. neomexicana is similar to that of A. inornata, one of its bisexual ancestors.
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Affiliation(s)
- Aracely A Newton
- Stowers Institute for Medical Research, Kansas City, MO 64110, USA
| | | | - Zulin Yu
- Stowers Institute for Medical Research, Kansas City, MO 64110, USA
| | - Sarah S Munday
- Stowers Institute for Medical Research, Kansas City, MO 64110, USA
| | - Diana P Baumann
- Stowers Institute for Medical Research, Kansas City, MO 64110, USA
| | - William B Neaves
- Stowers Institute for Medical Research, Kansas City, MO 64110, USA
| | - Peter Baumann
- Stowers Institute for Medical Research, Kansas City, MO 64110, USA .,Howard Hughes Medical Institute, Kansas City, MO 64110, USA.,Department of Molecular and Integrative Physiology, University of Kansas Medical Center, Kansas City, KS 66160, USA
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11
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Cole CJ, Taylor HL, Townsend CR. Morphological Variation in a Unisexual Whiptail Lizard (Aspidoscelis exsanguis) and One of Its Bisexual Parental Species (Aspidoscelis inornata) (Reptilia: Squamata: Teiidae): Is the Clonal Species Less Variable? AMERICAN MUSEUM NOVITATES 2016. [DOI: 10.1206/3849.1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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12
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Morphological Divergence and Genetic Variation in the Triploid Parthenogenetic Teiid Lizard,Aspidoscelis neotesselata. J HERPETOL 2015. [DOI: 10.1670/14-057] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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13
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Neaves' Whiptail Lizard: The First Known Tetraploid Parthenogenetic Tetrapod (Reptilia: Squamata: Teiidae). ACTA ACUST UNITED AC 2014. [DOI: 10.3099/mcz17.1] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Mata-Silva V, Johnson JD, Ramirez-Bautista A. Comparison of Diets of Two Syntopic Lizards, Aspidoscelis marmorataand Aspidoscelis tesselata(Teiidae), from the Northern Chihuahuan Desert of Texas. SOUTHWEST NAT 2013. [DOI: 10.1894/0038-4909-58.2.209] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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Taylor HL, Cole CJ, Manning GJ, Cordes JE, Walker JM. Comparative Meristic Variability in Whiptail Lizards (Teiidae,Aspidoscelis): Samples of ParthenogeneticA. tesselataVersus Samples of Sexually ReproducingA. sexlineata, A. marmorata, andA. gularis septemvittata. AMERICAN MUSEUM NOVITATES 2012. [DOI: 10.1206/3744.2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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16
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Taylor HL, Paulissen MA, Walker JM, Cordes JE. Breadth and Overlap of Diet Between Syntopic Populations of Parthenogenetic Aspidoscelis tesselata C and Gonochoristic Aspidoscelis sexlineata (Squamata: Teiidae) in Southeastern Colorado. SOUTHWEST NAT 2011. [DOI: 10.1894/f06-gc-211.1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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17
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Cole CJ, Hardy LM, Dessauer HC, Taylor HL, Townsend CR. Laboratory Hybridization Among North American Whiptail Lizards, IncludingAspidoscelis Inornata Arizonae × A. tigris marmorata(Squamata: Teiidae), Ancestors of Unisexual Clones in Nature. AMERICAN MUSEUM NOVITATES 2010. [DOI: 10.1206/3698.2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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18
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Sister chromosome pairing maintains heterozygosity in parthenogenetic lizards. Nature 2010; 464:283-6. [PMID: 20173738 PMCID: PMC2840635 DOI: 10.1038/nature08818] [Citation(s) in RCA: 74] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2009] [Accepted: 01/06/2010] [Indexed: 01/24/2023]
Abstract
Although bisexual reproduction has proven to be highly successful, parthenogenetic all-female populations occur frequently in certain taxa, including the whiptail lizards of the genus Aspidoscelis. Allozyme analysis revealed a high degree of fixed heterozygosity in these parthenogenetic species, supporting the view that they originated from hybridization events between related sexual species. It has remained unclear how the meiotic program is altered to produce diploid eggs while maintaining heterozygosity. Here we show that meiosis commences with twice the number of chromosomes in parthenogenetic versus sexual species, a mechanism that provides the basis for generating gametes with unreduced chromosome content without fundamental deviation from the classic meiotic program. Our observation of synaptonemal complexes and chiasmata demonstrate that a typical meiotic program occurs and that heterozygosity is not maintained by bypassing recombination. Instead, fluorescent in situ hybridization probes that distinguish between homologues reveal that bivalents form between sister chromosomes, the genetically identical products of the first of two premeiotic replication cycles. Sister chromosome pairing provides a mechanism for the maintenance of heterozygosity, which is critical for offsetting the reduced fitness associated with the lack of genetic diversity in parthenogenetic species.
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20
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Paulissen MA, Walker JM, Taylor HL. DIET OF SYMPATRIC PATTERN CLASSES C AND E OF THE PARTHENOGENETIC WHIPTAIL LIZARD ASPIDOSCELIS TESSELATA AT SUMNER LAKE, DE BACA COUNTY, NEW MEXICO. SOUTHWEST NAT 2006. [DOI: 10.1894/0038-4909(2006)51[555:dospcc]2.0.co;2] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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21
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Proximate Causes of a Phylogenetic Constraint on Clutch Size in Parthenogenetic Aspidoscelis Neotesselata (Squamata: Teiidae) and Range Expansion Opportunities Provided by Hybridity. J HERPETOL 2006. [DOI: 10.1670/0022-1511(2006)40[294:pcoapc]2.0.co;2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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22
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Application of the Evolutionary Species Concept to Parthenogenetic Entities: Comparison of Postformational Divergence in Two Clones of Aspidoscelis tesselata and between Aspidoscelis cozumela and Aspidoscelis maslini (Squamata: Teiidae). J HERPETOL 2005. [DOI: 10.1670/222-04a] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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23
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Taylor HL, Walker JM, Cordes JE, Manning GJ. LIFE HISTORY CHARACTERISTICS SUPPORT SEPARATE ORIGINS OF D-DESIGNATION COLOR PATTERN CLASSES IN PARTHENOGENETIC ASPIDOSCELIS TESSELATA (SQUAMATA: TEIIDAE). SOUTHWEST NAT 2005. [DOI: 10.1894/0038-4909(2005)050[0258:lhcsso]2.0.co;2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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24
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MANNING GLENNJ, COLE CHARLESJ, DESSAUER HERBERTC, WALKER JAMESM. Hybridization Between Parthenogenetic Lizards (Aspidoscelis neomexicana) and Gonochoristic Lizards (Aspidoscelis sexlineata viridis) in New Mexico: Ecological, Morphological, Cytological, and Molecular Context. AMERICAN MUSEUM NOVITATES 2005. [DOI: 10.1206/0003-0082(2005)492[0001:hbplan]2.0.co;2] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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25
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Taylor HL, Lemos-Espinal JA, Smith HM. MORPHOLOGICAL CHARACTERISTICS OF A NEWLY DISCOVERED POPULATION OF ASPIDOSCELIS TESSELATA (SQUAMATA: TEIIDAE) FROM CHIHUAHUA, MÉXICO, THE IDENTITY OF AN ASSOCIATED HYBRID, AND A PATTERN OF GEOGRAPHIC VARIATION. SOUTHWEST NAT 2003. [DOI: 10.1894/0038-4909(2003)048<0692:mcoand>2.0.co;2] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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26
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TAYLOR HARRYL, COLE CHARLESJ, DESSAUER HERBERTC, PARKER ED. Congruent Patterns of Genetic and Morphological Variation in the Parthenogenetic Lizard Aspidoscelis tesselata (Squamata: Teiidae) and the Origins of Color Pattern Classes and Genotypic Clones in Eastern New Mexico. AMERICAN MUSEUM NOVITATES 2003. [DOI: 10.1206/0003-0082(2003)424<0001:cpogam>2.0.co;2] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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27
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TAYLOR HARRYL, COLE CHARLESJ, HARDY LAURENCEM, DESSAUER HERBERTC, TOWNSEND CAROLR, WALKER JAMESM, CORDES JAMESE. Natural Hybridization Between the Teiid Lizards Cnemidophorus tesselatus (Parthenogenetic) and C. tigris marmoratus (Bisexual): Assessment of Evolutionary Alternatives. AMERICAN MUSEUM NOVITATES 2001. [DOI: 10.1206/0003-0082(2001)345<0001:nhbttl>2.0.co;2] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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28
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Case TJ. Patterns of coexistence in sexual and asexual species of Cnemidophorus lizards. Oecologia 1990; 83:220-7. [DOI: 10.1007/bf00317756] [Citation(s) in RCA: 25] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/1987] [Accepted: 12/09/1989] [Indexed: 10/26/2022]
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29
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Moritz CC, Wright JW, Brown WM. MITOCHONDRIAL‐DNA ANALYSES AND THE ORIGIN AND RELATIVE AGE OF PARTHENOGENETIC LIZARDS (GENUS
CNEMIDOPHORUS
). III.
C. VELOX
AND
C. EXSANGUIS. Evolution 1989; 43:958-968. [DOI: 10.1111/j.1558-5646.1989.tb02542.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/1987] [Accepted: 02/27/1989] [Indexed: 10/19/2022]
Affiliation(s)
- Craig C. Moritz
- Laboratory of Molecular Systematics, Museum of Zoology, and Department of Biology University of Michigan Ann Arbor MI 48109‐1079
| | - John W. Wright
- Section of Herpetology Natural History Museum of Los Angeles County Los Angeles CA 90007
| | - Wesley M. Brown
- Laboratory of Molecular Systematics, Museum of Zoology, and Department of Biology University of Michigan Ann Arbor MI 48109‐1079
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30
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31
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Polyclony and low relative heterozygosity in a widespread unisexual vertebrate, Lepidodactylus lugubris (Sauria). Genetica 1987. [DOI: 10.1007/bf00056034] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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32
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Crews D, Grassman M, Lindzey J. Behavioral facilitation of reproduction in sexual and unisexual whiptail lizards. Proc Natl Acad Sci U S A 1986; 83:9547-50. [PMID: 3467325 PMCID: PMC387177 DOI: 10.1073/pnas.83.24.9547] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
All-female, parthenogenetic species afford a unique test of hypotheses regarding the nature and evolution of sexuality. Mating behavior accomplishes the transfer of gametes and stimulates the coordination of reproductive activity of the male and female. Cnemidophorus uniparens, a parthenogenetic species, is believed to have resulted from the hybridization of two extant gonochoristic species, Cnemidophorus inornatus and Cnemidophorus gularis. C. uniparens regularly and reliably perform behaviors identical in form to those performed during mating by male C. inornatus. We have determined experimentally that individuals of the parthenogenetic species demonstrating male-like pseudosexual behavior also share a similarity in function with males of the sexually reproducing species. The number of female C. inornatus ovulating increases, and the latency to ovulation decreases, if a sexually active conspecific male is present. A similar facilitatory effect on ovarian recrudescence occurs in the all-female C. uniparens in the presence of a male-like individual. These results show that behavioral facilitation of ovarian recrudescence is important in sexual and unisexual species. This may represent a potent selection pressure favoring the maintenance of male-typical behaviors, thus accounting for the display of behavioral traits usually associated with males in unisexual species of hybrid origin.
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33
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Good DA, Wright JW. Allozymes and the hybrid origin of the parthenogenetic lizardCnemidophorus exsanguis. ACTA ACUST UNITED AC 1984. [DOI: 10.1007/bf01946485] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Influence of gene dosage on electrophoretic phenotypes of proteins from lizards of the genus Cnemidophorus. ACTA ACUST UNITED AC 1984. [DOI: 10.1016/0305-0491(84)90241-4] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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B�rner AR. Der Artbegriff and seine Bedeutung fur die Klassifikation der Echsen (Reptilia: Sauria). Acta Biotheor 1982. [DOI: 10.1007/bf00048090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Wright JW. Parthenogenetic Lizards. Science 1978. [DOI: 10.1126/science.201.4361.1152.b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Affiliation(s)
- John W. Wright
- Section of Herpetology, Natural History Museum, Los Angleles, California 90007
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Affiliation(s)
- John W. Wright
- Section of Herpetology, Natural History Museum, Los Angleles, California 90007
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Umemori-Aikawa Y, Aikawa T. Adenosine deaminase from the clam, Tapes philippinarum: partial purification and detection of activity on disc electrophoresis. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. B, COMPARATIVE BIOCHEMISTRY 1974; 49:353-9. [PMID: 4423211 DOI: 10.1016/0305-0491(74)90170-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Peccinini-Seale D, Frota-Pessoa O. Structural heterozygosity in parthenogenetic populations of Cnemidophorus lemniscatus (Sauria, Teiidae) from the Amazonas valley. Chromosoma 1974; 47:439-51. [PMID: 4426216 DOI: 10.1007/bf00326365] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Waehneldt TV, Osborne NN, Neuhoff V. Electrophoretic study of nervous tissue proteins from invertebrate and vertebrate animals. COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY. B, COMPARATIVE BIOCHEMISTRY 1973; 44:1043-50. [PMID: 4714900 DOI: 10.1016/0305-0491(73)90257-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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Harbison GR, Fisher JR. Purification, properties and temperature dependence of the adenosine deaminase from a poikilotherm (bay scallop). Arch Biochem Biophys 1973; 154:84-95. [PMID: 4689789 DOI: 10.1016/0003-9861(73)90037-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Scholl A, Holzberg S. Zone electrophoretic studies on lactate dehydrogenase isoenzymes in South American Cichlids (Teleostei, Percomorphi). EXPERIENTIA 1972; 28:489-91. [PMID: 5036589 DOI: 10.1007/bf02008361] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
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Rasch EM, Prehn LM, Rasch RW. Cytogenetic studies of Poecilia (Pisces). II. Triploidy and DNA levels in naturally occurring populations associated with the gynogenetic Teleost, Poecilia formosa (Girard). Chromosoma 1970; 31:18-40. [PMID: 5489355 DOI: 10.1007/bf00321153] [Citation(s) in RCA: 51] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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