Sex pheromone of aPlanotortrix excessana sibling species and reinvestigation of related species

1990 ◽  
Vol 16 (8) ◽  
pp. 2461-2474 ◽  
Author(s):  
S. P. Foster ◽  
J. R. Clearwater ◽  
S. J. Muggleston ◽  
P. W. Shaw
Keyword(s):  
Sex Pheromone ◽  
Sibling Species ◽  
Related Species

scholarly journals Contact-Chemosensory Evolution Underlying Reproductive Isolation in Drosophila Species

2020 ◽  
Vol 14 ◽  
Author(s):  
Kosei Sato ◽  
Daisuke Yamamoto
Keyword(s):  
Decision Making ◽  
Mate Choice ◽  
Reproductive Isolation ◽  
Sibling Species ◽  
Related Species ◽  
Main Theme ◽  
Biological Factors ◽  
Premating Isolation ◽  
Closely Related Species ◽  
Neural Activities

The main theme of the review is how changes in pheromone biochemistry and the sensory circuits underlying pheromone detection contribute to mate choice and reproductive isolation. The review focuses primarily on gustatory and non-volatile signals in Drosophila. Premating isolation is prevalent among closely related species. In Drosophila, preference for conspecifics against other species in mate choice underlies premating isolation, and such preference relies on contact chemosensory communications between a female and male along with other biological factors. For example, although D. simulans and D. melanogaster are sibling species that yield hybrids, their premating isolation is maintained primarily by the contrasting effects of 7,11-heptacosadiene (7,11-HD), a predominant female pheromone in D. melanogaster, on males of the two species: it attracts D. melanogaster males and repels D. simulans males. The contrasting preference for 7,11-HD in males of these two species is mainly ascribed to opposite effects of 7,11-HD on neural activities in the courtship decision-making neurons in the male brain: 7,11-HD provokes both excitatory and inhibitory inputs in these neurons and differences in the balance between the two counteracting inputs result in the contrasting preference for 7,11-HD, i.e., attraction in D. melanogaster and repulsion in D. simulans. Introduction of two double bonds is a key step in 7,11-HD biosynthesis and is mediated by the desaturase desatF, which is active in D. melanogaster females but transcriptionally inactivated in D. simulans females. Thus, 7,11-HD biosynthesis diversified in females and 7,11-HD perception diversified in males, yet it remains elusive how concordance of the changes in the two sexes was attained in evolution.

scholarly journals Contribution to the Knowledge of the GenusLindaThomson, 1864 (Part I), with the Description ofLinda(Linda)subatricornisn. sp. from China (Coleoptera, Cerambycidae, Lamiinae)

2012 ◽  
Vol 2012 ◽  
pp. 1-8
Author(s):  
Mei-Ying Lin ◽  
Xing-Ke Yang
Keyword(s):  
Sibling Species ◽  
Related Species ◽  
Similar Species ◽  
Short Discussion

Linda (Linda) subatricornisn. sp is described from Sichuan (holotype locality), Fujian, Shaanxi, Hebei, Ningxia of China. It is separated from the most similar speciesL. atricornisPic by differences in genitalia and antennal insertions. Detailed descriptions, photographs of habitus and genitalia, distribution of the two sibling species and short discussion on the related species are presented.

CHROMOSOME NUMBER POLYMORPHISM IN AN AUSTRALIAN PONERINE ANT

1969 ◽  
Vol 11 (2) ◽  
pp. 333-339 ◽  
Author(s):  
R. H. Crozier
Keyword(s):  
Chromosome Number ◽  
Sibling Species ◽  
Related Species ◽  
Ponerine Ant ◽  
Robertsonian System

Southern Victorian populations of Rhytidoponera metallica have n = 22 to 17, with progressive replacement of two acrocentrics at a time by a metacentric to yield numbers lower than 22 (nombre fondamentale = 23). A further collection with n = 12 represents either a further reduction in this Robertsonian system or a sibling species. Related species have n = 21 (victoriae) and 23 (tasmaniensis).

Pheromone 97*. Der Sexualpheromonkomplex Des Weiblichen Blutbär Thyria Jacobaeae (Lepidoptera, Arctiidae) /Pheromones, 97*. The Sex Pheromone Complex of the Female Arctiid Moth Thyria jacobaeae (Lepidoptera, Arctiidae)

1994 ◽  
Vol 49 (3-4) ◽  
pp. 276-280 ◽  
Author(s):  
Hans Jürgen Bestmann ◽  
Edelgard Janssen ◽  
Friedrich Kern ◽  
Doris Schäfer ◽  
Otto Vostrowsky
Keyword(s):  
Sex Pheromone ◽  
Related Species ◽  
Mass Spectrometric ◽  
Active Components ◽  
Arctiid Moth ◽  
Pheromone Complex ◽  
Activity Comparison ◽  
Chromatographic Mass

By means of gas chromatographic, mass spectrometric methods and combined GC-electroantennogramm techniques as well as activity comparison with pheromones of related species (3Z,6Z)-c/s-9,10-epoxyeicosadiene 1 and (3Z,6Z)-cis-9,10-epoxyheneicosadiene 2 were identified as the biological active components of the sex pheromone complex of the female arctiid moth Thyria jacobaeae

Description of Dineura pullior sp. n. (Hymenoptera: Tenthredinidae), with quantified observations on saw wear

1995 ◽  
Vol 26 (4) ◽  
pp. 385-392 ◽  
Author(s):  
S. Schmidt ◽  
G.H. Walter
Keyword(s):  
Host Plant ◽  
Sibling Species ◽  
Related Species ◽  
Closely Related Species ◽  
Adult Females ◽  
First Time ◽  
Important Character ◽  
Range Of Variation

AbstractIn sawfly taxonomy the structure of the lancet or the saw is an important character for identification of females. Because adult females use the saw to place eggs into the host plant its teeth may wear and their shape may thus be altered. We investigated the pattern of wear in a species of nematine sawfly that we also describe for the first time. Saw wear of females that deposited known numbers of eggs was examined. Saw wear was not strongly related to the number of eggs laid, despite some saws being considerably worn. The range of variation in saw profile illustrated by Lindqvist (1956) in the closely-related species D. virididorsata (Retzius) was not observed in our study. Despite the shape of the saw being altered to some extent with use, other structures on the saw do not change and provide good taxonomic characters in the genus Dineura, as evidenced by our detection of the cryptic (= sibling) species on the basis of differences in ctenidial structure. We describe this species under the name Dineura pullior sp. n.

scholarly journals Taxonomic status of several sibling species – parasites in man and in other vertebrates

2007 ◽  
Vol 55 (5) ◽  
pp. 235-240
Author(s):  
František Tenora
Keyword(s):  
Sibling Species ◽  
Ascaris Lumbricoides ◽  
Related Species ◽  
Taxonomic Status ◽  
Species Pairs

The taxonomic status of several related species pairs of sibling species character is discussed. They are the following pairs: 1)Ascaris lumbricoidesL., 1758;A. suum Goeze, 1782; 2)Rodentolepis nana(Siebold, 1852);R. fraterna(Stiles, 1906); 3)Hymenolepis flavopunctata(Weinland, 1858);H. diminuta(Rudolphi, 1819).

THE EVOLUTIONARY HISTORY OF DROSOPHILA BUZZATII. III. CYTOGENETIC RELATIONSHIPS BETWEEN TWO SIBLING SPECIES OF THE BUZZATII CLUSTER

Genetics ◽  
1982 ◽  
Vol 101 (3-4) ◽  
pp. 503-518 ◽  
Author(s):  
A Ruiz ◽  
A Fontdevila ◽  
M Wasserman
Keyword(s):  
Salivary Gland ◽  
Sibling Species ◽  
Related Species ◽  
Evolutionary History ◽  
South American ◽  
Closely Related Species ◽  
Drosophila Buzzatii ◽  
Repleta Group ◽  
Chromosomal Data ◽  
History Of

ABSTRACT Drosophila buzzatii has been found sympatric in Argentina with a closely-related sibling species, D. serido. The biogeographical, reproductive and chromosomal data allow us to combine these species into an evolutionary unit, the buzzatii cluster. Salivary gland chromosomes also have been used to determine their phylogenetic relationships with other closely related species, showing that the buzzatii cluster species share two inversions—2d  2 and 2s  6—with the species of the martensis cluster. Both clusters arose from South American populations of the ancestor of the mulleri complex, and we propose to include D. buzzatii and D. serido in the mulleri complex of the repleta group.

Divergent cytogenetic evolution in Nearctic and Palearctic populations of sibling species in Chironomus (Camptochironomus) Kieffer

1998 ◽  
Vol 76 (2) ◽  
pp. 361-376
Author(s):  
Iya I Kiknadze ◽  
Malcolm G Butler ◽  
Karlygash G Aimanova ◽  
Evgenya N Andreeva ◽  
Jon Martin ◽  
...  
Keyword(s):  
Sibling Species ◽  
Related Species ◽  
Polytene Chromosomes ◽  
Natural Populations ◽  
Chromosomal Polymorphism ◽  
The Other ◽  
Chironomus Tentans ◽  
Closely Related Species ◽  
Cytogenetic Evolution

Chromosomal polymorphism is described for natural populations of Chironomus pallidivittatus in both the Palearctic and Nearctic regions. The Palearctic populations studied exhibit 24 banding sequences, whereas 10 banding sequences have been recorded from Nearctic C. pallidivittatus. In total, 29 sequences and 37 genotypic combinations have been found. Of the 29 sequences known, only 5 are Holarctic (common to both the Nearctic and Palearctic), 19 are exclusively Palearctic, and 5 are Nearctic. The karyotype of Nearctic C. pallidivittatus is characterized by specific, homozygous Nearctic sequences in arms B and G and fixed Holarctic inversion sequences in the other arms. Only two chromosome arms in C. pallidivittatus, but all seven arms in the sibling species Chironomus tentans, differ between Palearctic and Nearctic forms by the presence of unique, homozygous sequences in the Nearctic karyotype. This indicates a great difference in the cytogenetic histories of these closely related species; much less karyotypic divergence between continents has occurred in C. pallidivittatus than in C. tentans. The cytogenetic distance between Palearctic and Nearctic populations of C. tentans is higher (DN = 1.62) than in C. pallidivittatus (DN = 0.27). Thus, Palearctic and Nearctic C. tentans should be regarded as sibling species, but Palearctic and NearcticC. pallidivittatus are best viewed as strongly divergent races of the same species. A photomap of polytene chromosomes of C. pallidivittatus is presented in which banding sequences are mapped by using C. tentans as a standard.

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