5,588 research outputs found
Female rose bitterling prefer MHC-dissimilar males : experimental evidence
No full textThe role of genetic benefits in female mate choice remains a controversial aspect of sexual selection theory. In contrast to “good allele” models of sexual selection, “compatible allele” models of mate choice predict that females prefer mates with alleles complementary to their own rather than conferring additive effects. While correlative results suggest complementary genetic effects to be plausible, direct experimental evidence is scarce. A previous study on the Chinese rose bitterling (Rhodeus ocellatus) demonstrated a positive correlation between female mate choice, offspring growth and survival, and the functional dissimilarity between the Major Histocompatibility Complex (MHC) alleles of males and females. Here we directly tested whether females used cues associated with MHC genes to select genetically compatible males in an experimental framework. By sequentially pairing females with MHC similar and dissimilar males, based on a priori known MHC profiles, we showed that females discriminated between similar and dissimilar males and deposited significantly more eggs with MHC dissimilar males. Notably, the degree of dissimilarity was an important factor for female decision to mate, possibly indicating a potential threshold value of dissimilarity for decision making, or of an indirect effect of the MHC.Peer reviewe
Tangle-bearing neurons survive despite disruption of membrane integrity in a mouse model of tauopathy
No full textNeurofibrillary tangles (NFTs) are associated with neuronal loss and correlate with cognitive impairment in Alzheimer disease, but how NFTs relate to neuronal death is not clear. We studied cell death in Tg4510 mice that reversibly express P301L mutant human tau and accumulate NFTs using in vivo multiphoton imaging of neurofibrillary pathology, propidium iodide (PI) incorporation into cells, caspase activation, and DNA labeling. We first observed that in live mice, a minority of neurons were labeled with the caspase probe or with PI fluorescence. These markers of cell stress were localized in the same cells and appeared specifically within NFT-bearing neurons. Contrary to expectations, the PI-stained neurons did not die during a day of observation; the presence of Hoechst-positive nuclei in them on the subsequent day indicated that the NFT-associated membrane disruption, as suggested by PI staining, and caspase activation do not lead to immediate death of neurons in this tauopathy model. This unique combination of in vivo multiphoton imaging with markers of cell death and pathological alteration is a powerful tool for investigating neuronal damage associated with neurofibrillary pathology
Anathamna neospermatophaga Rose & Pooni 2005
No full text190. Anathamna neospermatophaga Rose & Pooni, 2005 Anathamna neospermatophaga Pooni & Rose, 2005; Entomon 30: 238. TL: TL: India, Himachal Pradesh, Dist. Solan, Nauni. Distribution: India (Himachal Pradesh, Punjab, Uttarakhand). Illustrations: Wing venation and genitalia (Rose & Pooni 2005: 239).Published as part of Pathania, Prakash C., Das, Apurva & Chandra, Kailash, 2020, Catalogue of Tortricidae Latreille, 1802 (Lepidoptera: Tortricoidea) of India, pp. 1-95 in Zootaxa 4757 (1) on page 38, DOI: 10.11646/zootaxa.4757.1.1, http://zenodo.org/record/375605
Archips carteri Rose & Pooni 2004
No full text23. Archips carteri Rose & Pooni, 2004 Archips carteri Rose & Pooni, 2004; Entomon 29: 152. TL: India, Himachal Pradesh, Palampur, Kangra. Distribution: India (Himachal Pradesh). Illustrations: Wing venation and genitalia (Rose & Pooni 2004: 158).Published as part of Pathania, Prakash C., Das, Apurva & Chandra, Kailash, 2020, Catalogue of Tortricidae Latreille, 1802 (Lepidoptera: Tortricoidea) of India, pp. 1-95 in Zootaxa 4757 (1) on page 11, DOI: 10.11646/zootaxa.4757.1.1, http://zenodo.org/record/375605
Meridemis obraztsovi Rose & Pooni 2004
No full text80. Meridemis obraztsovi Rose & Pooni, 2004 Meridemis obraztsovi Rose & Pooni, 2004; Entomon 29: 171. TL: India, Himachal Pradesh, Renuka Lake, Sirmour. Distribution: India (Himachal Pradesh). Illustrations: Genitalia (Rose & Pooni 2004: 177).Published as part of Pathania, Prakash C., Das, Apurva & Chandra, Kailash, 2020, Catalogue of Tortricidae Latreille, 1802 (Lepidoptera: Tortricoidea) of India, pp. 1-95 in Zootaxa 4757 (1) on page 21, DOI: 10.11646/zootaxa.4757.1.1, http://zenodo.org/record/375605
Archips pseudotermias Rose & Pooni 2004
No full text33. Archips pseudotermias Rose & Pooni, 2004 Archips pseudotermias Rose & Pooni, 2004; Entomon 29: 146. TL: India, Punjab, Patiala. Distribution: India (Punjab). Illustrations: Genitalia (Rose & Pooni 2004: 149).Published as part of Pathania, Prakash C., Das, Apurva & Chandra, Kailash, 2020, Catalogue of Tortricidae Latreille, 1802 (Lepidoptera: Tortricoidea) of India, pp. 1-95 in Zootaxa 4757 (1) on page 13, DOI: 10.11646/zootaxa.4757.1.1, http://zenodo.org/record/375605
Meridemis punjabensis Rose & Pooni 2004
No full text81. Meridemis punjabensis Rose & Pooni, 2004 Meridemis punjabensis Rose & Pooni, 2004; Entomon 29: 169. TL: India, Punjab, Roopnagar. Distribution: India (Punjab). Illustrations: Genitalia (Rose & Pooni 2004: 168).Published as part of Pathania, Prakash C., Das, Apurva & Chandra, Kailash, 2020, Catalogue of Tortricidae Latreille, 1802 (Lepidoptera: Tortricoidea) of India, pp. 1-95 in Zootaxa 4757 (1) on page 21, DOI: 10.11646/zootaxa.4757.1.1, http://zenodo.org/record/375605
Neocalyptis conicus Rose & Pooni 2004
No full text85. Neocalyptis conicus Rose & Pooni, 2004 Neocalyptis conicus Rose & Pooni, 2004; Entomon 29: 164. TL: India, Uttaranchal, Dehradun. Distribution: India (Uttarakhand). Illustrations: Genitalia (Rose & Pooni 2004: 168).Published as part of Pathania, Prakash C., Das, Apurva & Chandra, Kailash, 2020, Catalogue of Tortricidae Latreille, 1802 (Lepidoptera: Tortricoidea) of India, pp. 1-95 in Zootaxa 4757 (1) on page 21, DOI: 10.11646/zootaxa.4757.1.1, http://zenodo.org/record/375605
Clepsis neomelissa Rose & Pooni 2004
No full text51. Clepsis neomelissa Rose & Pooni, 2004 Clepsis neomelissa Rose & Pooni, 2004; Entomon 29: 157. TL: India, Himachal Pradesh, Renuka Lake, Sirmour. Distribution: India (Himachal Pradesh). Illustrations: Genitalia (Rose & Pooni 2004: 158).Published as part of Pathania, Prakash C., Das, Apurva & Chandra, Kailash, 2020, Catalogue of Tortricidae Latreille, 1802 (Lepidoptera: Tortricoidea) of India, pp. 1-95 in Zootaxa 4757 (1) on page 16, DOI: 10.11646/zootaxa.4757.1.1, http://zenodo.org/record/375605
Grapholita komaii Rose & Pooni 2003
No full text460. Grapholita komaii Rose & Pooni, 2003 Grapholita komaii Rose & Pooni, 2003; J. ent. Res. 27: 247. TL: India, Punjab, Dist. Patiala. Distribution: India (Himachal Pradesh, Punjab). Illustrations: Head, wing venation, and genitalia (Rose & Pooni 2003: 249).Published as part of Pathania, Prakash C., Das, Apurva & Chandra, Kailash, 2020, Catalogue of Tortricidae Latreille, 1802 (Lepidoptera: Tortricoidea) of India, pp. 1-95 in Zootaxa 4757 (1) on page 80, DOI: 10.11646/zootaxa.4757.1.1, http://zenodo.org/record/375605
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