Open-access, peer-reviewed academic journal for all aspects of plant and animal cytogenetics, karyosystematics and molecular systematics. Published by @pensoft.net. Powered by @arphahub.com. Website: compcytogen.pensoft.nethttps://bsky.app/profile/compcytogen.pensoft.nethttps://bsky.app/profile/compcytogen.pensoft.net/post/3mujxbdgwqc2w🔬 The chromosomes of a small shrew, Crocidura indochinensis, have been mapped for the first time, and its genetic pattern has been shown to be clearly distinct from its close relatives, confirming its status as a separate species. Access the full study: doi.org/10.3897/compcytogen.20.19195502 Sep 2026 12:38 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3mujxbdgwqc2whttps://bsky.app/profile/compcytogen.pensoft.net/post/3msvdywfeoc2e🐟 The chromosomes of two Atlantic goby fish, Coryphopterus glaucofraenum and Evorthodus lyricus, have been characterised for the very first time, with strikingly different chromosome numbers being found between the two species. Find out more: doi.org/10.3897/compcytogen.20.20626612 Aug 2026 14:34 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3msvdywfeoc2ehttps://bsky.app/profile/compcytogen.pensoft.net/post/3mrcvd5lkdk2k🧬 Researchers have scanned public genome data from 24 genera of true water bugs to uncover their telomere sequences, finding that whilst the most primitive lineages retain the ancestral insect motif, several groups have independently evolved their own repeats: doi.org/10.3897/compcytogen.20.19850023 Jul 2026 12:59 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3mrcvd5lkdk2khttps://bsky.app/profile/compcytogen.pensoft.net/post/3mpl7iv2guc2y🍋 New molecular markers have been developed to distinguish the notoriously similar chromosomes of five Citrus species, using a fluorescence-based technique to map four newly identified DNA repeats. 🔬 Full study: doi.org/10.3897/compcytogen.20.19040801 Jul 2026 09:32 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3mpl7iv2guc2yhttps://bsky.app/profile/compcytogen.pensoft.net/post/3monkrbgxts2k📍 The 10th European Hemiptera Congress is to be hosted in Martonvásár, Hungary, from 28 June to 3 July. 🤔 Curious to find out what will be covered across the sessions? Check out our latest news announcement: compcytogen.pensoft.net/news/131219 Jun 2026 14:33 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3monkrbgxts2khttps://bsky.app/profile/compcytogen.pensoft.net/post/3mon6zqvsas2k🎉 Comparative Cytogenetics has received a 2025 Scopus CiteScore of 1.7 and a Journal Impact Factor of 0.9. 🔗 Find out more by visiting our latest news announcement: compcytogen.pensoft.net/news/1275 #OpenAccess #JIF2026 #Scopus19 Jun 2026 11:03 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3mon6zqvsas2khttps://bsky.app/profile/compcytogen.pensoft.net/post/3mo3eu7rtw226🐟 The chromosomes of three species of flying fish have been analysed for the first time, providing new insights into the genetic diversity of these remarkable ocean-gliding fish found across the Atlantic. ➡️ Read the full study here: doi.org/10.3897/compcytogen.20.190559 #flyingfish12 Jun 2026 09:00 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3mo3eu7rtw226https://bsky.app/profile/compcytogen.pensoft.net/post/3mjk5i7jbsk2yDid you know that 𝘗𝘰𝘭𝘺𝘨𝘢𝘭𝘢 𝘧𝘢𝘭𝘭𝘢𝘹 is a perennial herb that possesses antioxidant, anti-aging, anti-inflammatory and antibacterial properties? This recent study contributes valuable insights into its genetic characteristics: doi.org/10.3897/compcytogen.20.18417615 Apr 2026 14:52 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3mjk5i7jbsk2yhttps://bsky.app/profile/compcytogen.pensoft.net/post/3mhxl4bbba22lNew #karyological #data on blind mole rats (Nannospalax sp.) from Eastern Anatolia, Türkiye expands our knowledge about #subterranean #biodiversity. #Cytogenetic analyses reveal 2n=52 chromosomes, with NOR regions on three autosomal pairs. Check out the full details here: https://doi.org/10.3897/compcytogen.20.18510426 Mar 2026 12:10 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3mhxl4bbba22lhttps://bsky.app/profile/compcytogen.pensoft.net/post/3mhuvskom5s2f🐜 Chromosomal blueprints of fungus-growing ants in the Brazilian Amazon have been mapped by researchers extracting DNA from larval brain ganglia. ➡️ These findings from the Guiana Shield reveal how specific genetic sequences shift and rearrange: doi.org/10.3897/compcytogen.20.17587025 Mar 2026 10:43 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3mhuvskom5s2fhttps://bsky.app/profile/compcytogen.pensoft.net/post/3meqg72dfe22s🐝 Meet 𝘈𝘨𝘢𝘯𝘢𝘴𝘱𝘪𝘴 𝘥𝘢𝘤𝘪, a parasitoid wasp and natural enemy of fruit flies recently discovered in Italy. 🧬 Researchers have mapped its chromosomes to reveal a unique genetic makeup that suggests its evolution involved a rare chromosomal fusion. Read more here: doi.org/10.3897/compcytogen.20.180400 https://doi.org/10.3897/compcytogen.20.18040013 Feb 2026 11:38 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3meqg72dfe22shttps://bsky.app/profile/compcytogen.pensoft.net/post/3mdkfox2bxs2a🎉 Today we celebrate the 85th birthday of Professor Valentina Kuznetsova, a world-leading expert in the study of insect genetics and evolution. Find out more about her legacy here: doi.org/10.3897/compcytogen.20.18267529 Jan 2026 08:47 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3mdkfox2bxs2ahttps://bsky.app/profile/compcytogen.pensoft.net/post/3mdfv42cgts2hHave you ever wondered how nature keeps our genetic blueprints from getting messy? 🧬 Scientists studying subterranean rodents have discovered rare sperm cells that accidentally carry twice the normal amount of DNA.27 Jan 2026 13:40 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3mdfv42cgts2hhttps://bsky.app/profile/compcytogen.pensoft.net/post/3mckalg4r2k2nAdvances in the #cytogenetic database of the neotropical lizards Gymnophthalmidae: new #karyotype data provided for the underrepresented Bachiini and Cercosaurini tribes within the subfamily Cercosaurinae ⤵️ https://doi.org/10.3897/compcytogen.20.170539 #Amazonia, #Neotropical, #evolution, #phylogeny, #taxonomy16 Jan 2026 13:51 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3mckalg4r2k2nhttps://bsky.app/profile/compcytogen.pensoft.net/post/3mc7jft7jo223🧬New study characterizes and validates the widely used ribosomal DNA (18S) used in comparative #phylogenetics studies of order #Hymenoptera and provides new #chromosomal data of two previously unstudied leafcutter ant species. ➡️ https://doi.org/10.3897/compcytogen.20.16261612 Jan 2026 07:29 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3mc7jft7jo223https://bsky.app/profile/compcytogen.pensoft.net/post/3m64ui6vgrs2qFrom two natural populations in the Inya River of Western Siberia, data on chromosomal polymorphism of 𝐶ℎ𝑖𝑟𝑜𝑛𝑜𝑚𝑢𝑠 sp. J - a sibling species from the 𝐶ℎ𝑖𝑟𝑜𝑛𝑜𝑚𝑢𝑠 𝑝𝑙𝑢𝑚𝑜𝑠𝑢𝑠 group - are presented for the first time. 🔗 https://doi.org/10.3897/compcytogen.19.17239821 Nov 2025 08:29 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3m64ui6vgrs2qhttps://bsky.app/profile/compcytogen.pensoft.net/post/3m5l7tzlds22aNew cytogenetic research reveals contrasting chromosome diversity in two 𝐵𝑜𝑡ℎ𝑟𝑖𝑢𝑟𝑢𝑠 scorpion species from Brazil. 🔗 https://doi.org/10.3897/compcytogen.19.16516014 Nov 2025 08:04 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3m5l7tzlds22ahttps://bsky.app/profile/compcytogen.pensoft.net/post/3m5azurwuqc2bComparative cytogenetics of 𝑃ℎ𝑦𝑠𝑎𝑙𝑎𝑒𝑚𝑢𝑠 𝑔𝑟𝑎𝑐𝑖𝑙𝑖𝑠 group frogs highlights karyotypic variation and improves understanding of chromosome evolution and species diversity in South American anurans. 🔗 https://doi.org/10.3897/compcytogen.19.17163710 Nov 2025 06:51 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3m5azurwuqc2bhttps://bsky.app/profile/compcytogen.pensoft.net/post/3m2nxurvup22g𝐻𝑒𝑙𝑜𝑝ℎ𝑜𝑟𝑢𝑠 𝑎𝑞𝑢𝑖𝑙𝑎 is shown to include triploid parthenogenetic females. 🔗 https://doi.org/10.3897/compcytogen.19.16935308 Oct 2025 06:04 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3m2nxurvup22ghttps://bsky.app/profile/compcytogen.pensoft.net/post/3lwgilao7ck2nA study of the karyotype and evolutionary history of the Taiwanese salamander Hynobius fucus: https://doi.org/10.3897/compcytogen.19.158987 #karyotype #evolution #salamander15 Aug 2025 09:01 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3lwgilao7ck2nhttps://bsky.app/profile/compcytogen.pensoft.net/post/3lvulhp7dxc24Researchers present the first molecular cytogenetic characterisation of the scleractinian (stony) coral 𝑀𝑖𝑐𝑟𝑜𝑚𝑢𝑠𝑠𝑎 𝑎𝑚𝑎𝑘𝑢𝑠𝑒𝑛𝑠𝑖𝑠, employing fluorescence in situ hybridization (FISH) to isolate and map five DNA markers.  🔗 https://doi.org/10.3897/compcytogen.19.15731008 Aug 2025 06:05 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3lvulhp7dxc24https://bsky.app/profile/compcytogen.pensoft.net/post/3lupjxcjb6k2cKaryotypes of triploid female Helophorus brevipalpis from France are analysed using chromosome morphology and C-banding, appearing identical to Spanish material but not Italian. 🔗 https://doi.org/10.3897/compcytogen.19.16268524 Jul 2025 12:29 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3lupjxcjb6k2chttps://bsky.app/profile/compcytogen.pensoft.net/post/3lu7ucn55zs2zResearchers present the first evidence of telomere structure in the family Geocoridae and the first finding of the telomeric sequence (TTAGGGGTGG)n in the large superfamily Lygaeoidea. https://doi.org/10.3897/compcytogen.19.15698318 Jul 2025 06:52 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3lu7ucn55zs2zhttps://bsky.app/profile/compcytogen.pensoft.net/post/3lsl36nx4ks24We have moved from X to Bluesky! To keep up to date with the latest research in cytogenetics, follow us here!27 Jun 2025 07:04 +0000at://did:plc:ftaxepxmvbapvbk2gt7qlbea/app.bsky.feed.post/3lsl36nx4ks24