Biology Class Presentation_Nalugo Shadia.pptx

This presentation describes in detail the life cycle of the butterfly

1. Scientists discover Genetic Mechanism for Sex development in butterflies By: SHADIA NALUGWA

2. Article Summary Article Title : Male or female? Scientists discover the genetic mechanism that determines sex development in butterflies Source : Biology Centre of the Czech Academy of Sciences Date Published : May 3, 2024 Article link: https :// phys.org/news/2024-05-male-female-scientists-genetic-mechanism.html Journal information : Science Advances Researchers at the Biology Centre of the Czech Academy of Sciences, in collaboration with the University of Liverpool, have discovered the genetic mechanism that determines whether butterflies of the species Bicyclus anynana develop as Males or Females ( Van’t Hof et al., 2024 ). The Sex of the butterfly is determined by different combinations of variants of a gene called Masculinizer , with a single variant leading to female development and two different variants resulting in male development. If individuals with the same variant of the sex-determining gene mate, the embryos will not survive , which can have critical consequences in small butterfly populations with low genetic variation ( Bachtrog et al., 2014 ).

3. Real-World Connections Agricultural Pest Management: Understanding butterfly genetics can aid in the development of more effective pest control strategies , reducing crop damage caused by butterfly larvae . Conservation Efforts: Insights into butterfly genetics can inform conservation efforts, particularly for endangered species, by guiding breeding programs and habitat restoration initiatives . Ecological Impact: Butterfly populations play a crucial role in ecosystem dynamics, influencing pollination, food webs, and biodiversity. Understanding their genetics can help maintain ecosystem stability.

4. Real-World Connections Agricultural Pest Management: Understanding butterfly genetics can aid in the development of more effective pest control strategies , reducing crop damage caused by butterfly larvae. Conservation Efforts: Insights into butterfly genetics can inform conservation efforts, particularly for endangered species, by guiding breeding programs and habitat restoration initiatives . Ecological Impact: Butterfly populations play a crucial role in ecosystem dynamics, influencing pollination, food webs, and biodiversity. Understanding their genetics can help maintain ecosystem stability ().

5. Article Summary Article Title : Male or female? Scientists discover the genetic mechanism that determines sex development in butterflies Source : Biology Centre of the Czech Academy of Sciences Date Published : May 3, 2024 Article link: https:// phys.org/news/2024-05-male-female-scientists-genetic-mechanism.html Journal information : Science Advances Researchers at the Biology Centre of the Czech Academy of Sciences, in collaboration with the University of Liverpool, have discovered the genetic mechanism that determines whether butterflies of the species Bicyclus anynana develop as Males or Females. The Sex of the butterfly is determined by different combinations of variants of a gene called Masculinizer , with a single variant leading to female development and two different variants resulting in male development. If individuals with the same variant of the sex-determining gene mate, the embryos will not survive , which can have critical consequences in small butterfly populations with low genetic variation.

6. References Van’t Hof, A. E., Whiteford , S., Yung, C. J., Yoshido , A., Zrzavá , M., de Jong, M. A., Tan, K.-L., Zhu, D., Monteiro , A., Brakefield , P. M., & others. (2024). Zygosity -based sex determination in a butterfly drives hypervariability of Masculinizer. Science Advances, 10(18), eadj6979. Bachtrog , D., Mank , J. E., Peichel , C. L., Kirkpatrick, M., Otto, S. P., Ashman, T.-L., Hahn, M. W., Kitano, J., Mayrose , I., Ming, R., & others. (2014). Sex determination: Why so many ways of doing it? PLoS Biology, 12(7), e1001899.