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61.
Avise JC; Shapira JF; Daniel SW; Aquadro CF; Lansman RA 《Molecular biology and evolution》1983,1(1):38-56
We address the problem of the possible significance of biological
speciation to the magnitude and pattern of divergence of asexually
transmitted characters in bisexual species. The empirical data for this
report consist of restriction endonuclease site variability in maternally
transmitted mitochondrial DNA (mtDNA) isolated from 82 samples of
Peromyscus polionotus and P. leucopus collected from major portions of the
respective species' ranges. Data are analyzed together with previously
published information on P. maniculatus, a sibling species to polionotus.
Maps of restriction sites indicate that all of the variation observed can
be reasonably attributed to base substitutions leading to loss or gain of
particular recognition sites. Magnitude of mtDNA sequence divergence within
polionotus (maximum approximately equal to 2%) is roughly comparable to
that observed within any of five previously identified mtDNA assemblages in
maniculatus. Sequence divergence within leucopus (maximum approximately
equal to 4%) is somewhat greater than that within polionotus. Consideration
of probable evolutionary links among mtDNA restriction site maps allowed
estimation of matriarchal phylogenies within polionotus and leucopus.
Clustering algorithms and qualitative Wagner procedures were used to
generate phenograms and parsimony networks, respectively, for the
between-species comparisons. Three simple graphical models are presented to
illustrate some conceivable relationships of mtDNA differentiation to
speciation. In theoretical case I, each of two reproductively defined
species (A and B) is monophyletic in matriarchal genealogy; the common
female ancestor of either species can either predate or postdate the
speciation. In case II, neither species is monophyletic in matriarchal
genotype. In case III, species B is monophyletic but forms a subclade
within A which is thus paraphyletic with respect to B. The empirical
results for mtDNA in maniculatus and polionotus appear to conform closely
to case III. These theoretical and empirical considerations raise a number
of questions about the general relationship of the speciation process to
the evolution of uniparentally transmitted traits. Some of these
considerations are presented, and it is suggested that the distribution
patterns of mtDNA sequence variation within and among extant species should
be of considerable relevance to the particular demographies of speciation.
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62.
Debora Napoli Leonardo Lupori Raffaele Mazziotti Giulia Sagona Sara Bagnoli Muntaha Samad Erika K Sacramento Joanna Kirkpartick Elena Putignano Siwei Chen Eva Terzibasi Tozzini Paola Tognini Pierre Baldi Jessica CF Kwok Alessandro Cellerino Tommaso Pizzorusso 《EMBO reports》2021,22(1)
The authors regret having omitted grant attributions in the original publication. The funding section is herewith updated to reflect the change. “Funding attributed to Tommaso Pizzorusso was provided by EPIGEN Flagship project and PRIN2017HM8FA, funding attributed to Alessandro Cellerino was provided by Fondazione Pisa ETHERNA project, funding attributed to Pierre Baldi was provided by NIH (grant NIH ), funding attributed to Jessica Kwok was provided by the Leverhulme Trust project grant (RPG‐2018‐100).” GM123558相似文献