{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,27]],"date-time":"2026-09-27T04:30:49Z","timestamp":1790483449701,"version":"4.1.0"},"reference-count":38,"publisher":"Springer Science and Business Media LLC","issue":"1","content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["BMC Ecol"],"published-print":{"date-parts":[[2008,12]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Background<\/jats:title><jats:p>In the androdioecious nematode<jats:italic>Caenorhabditis elegans<\/jats:italic>virtually all progeny produced by hermaphrodite self-fertilization is hermaphrodite while 50% of the progeny that results from cross-fertilization by a male is male. In the standard laboratory wild type strain N2 males disappear rapidly from populations. This is not the case in some other wild type isolates of<jats:italic>C. elegans<\/jats:italic>, among them the Hawaiian strain CB4856.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>We determined the kinetics of the loss of males over time for multiple population sizes and wild isolates and found significant differences. We performed systematic inter- and intra-strain crosses with N2 and CB4856 and show that the males and the hermaphrodites contribute to the difference in male maintenance between these two strains. In particular, CB4856 males obtained a higher number of successful copulations than N2 males and sired correspondingly more cross-progeny. On the other hand, N2 hermaphrodites produced a higher number of self-progeny, both when singly mated and when not mated.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>These two differences have the potential to explain the observed variation in male persistence, since they should lead to a predominance of self-progeny (and thus hermaphrodites) in N2 and, at the same time, a high proportion of cross-progeny (and thus the presence of males as well as hermaphrodites) in CB4856.<\/jats:p><\/jats:sec>","DOI":"10.1186\/1472-6785-8-12","type":"journal-article","created":{"date-parts":[[2008,7,15]],"date-time":"2008-07-15T06:13:14Z","timestamp":1216102394000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":38,"title":["Experimental insight into the proximate causes of male persistence variation among two strains of the androdioecious Caenorhabditis elegans (Nematoda)"],"prefix":"10.1186","volume":"8","author":[{"given":"Viktoria","family":"Wegewitz","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Hinrich","family":"Schulenburg","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Adrian","family":"Streit","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2008,7,13]]},"reference":[{"key":"100_CR1","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1093\/oso\/9780199637393.001.0001","volume-title":"C. elegans a practical approach","author":"IA Hope","year":"1999","unstructured":"Hope IA: Background on Caenorhabditis elegans. 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