Differential gene expression of heat shock protein in response to thermal stress, in two Fundulus species endemic to the Gulf of Mexico
Por:
Alonso Colin-Garcia, Norberto, Chiappa-Carrara, Xavier, Campos, Jorge E., Leticia Arena-Ortiz, Maria, Hurtado, Luis A.
Publicada:
1 abr 2019
Resumen:
Expression of heat shock protein genes (Hsp) could be determinant for
fish to survive an increase of water temperature due to global warming.
Coastal lagoons, with their intrinsic high-water temperatures, test the
resilience and adaptability of fish populations to environmental change.
We analyze the variation in gene expression and genetic variation of 2
endemic Fundulus species in 2 lagoons to the north of the Yucatan
Peninsula. We evaluated genetic distances between species using Hsp 70
gene sequences; our results showed low genetic differentiation between
both Fundulus species and also showed individuals with high genetic
variability, due to non-neutral polymorphisms. Expression of 2 isoforms
of Hsp70 genes was higher in F. grandissimus than in F. persimilis.
These variations are prompted by water temperature and genetic
differentiation of species, induced in the fish thermal stress
sensitivity. Our results suggest that both species are sensitive to
thermal stress; however, populations exhibit wide genetic expression
range and non-neutral polymorphisms, which could be an evidence of an
adaptive process to thermal stress. This capacity of the fish
populations to adapt to environmental variations could be affecting fish
distribution.
Filiaciones:
Alonso Colin-Garcia, Norberto:
Univ Nacl Autonoma Mexico, Lab Biol Conservac, Unidad Multidisciplinaria Docencia & Invest, Sede Parque Cient Tecnol Yucatan, Carretera Sierra Papacal Chuburna Puerto Km 5, Sierra Papacal 97302, Yucatan, Mexico
Chiappa-Carrara, Xavier:
Univ Nacl Autonoma Mexico, Lab Biol Conservac, Unidad Multidisciplinaria Docencia & Invest, Sede Parque Cient Tecnol Yucatan, Carretera Sierra Papacal Chuburna Puerto Km 5, Sierra Papacal 97302, Yucatan, Mexico
Escuela Nacl Estudios Super, Unidad Merida Km 4-5,Carretera Merida Tetiz, Ucu 97357, Yucatan, Mexico
Laboratorio de Biología de Conservación, Unidad Multidisciplinaria de Docencia e Investigación, sede Parque Científico Tecnológico de Yucatán, Universidad Nacional Autónoma de México, carretera Sierra Papacal Chuburna Puerto Km. 5, Sierra Papacal, Yucatán, 97302, Mexico
Escuela Nacional de Estudios Superiores, Unidad Mérida Km. 4.5, carretera Mérida - Tetiz, Ucú, Yucatán, 97357, Mexico
Campos, Jorge E.:
Univ Nacl Autonoma Mexico, FES Iztacala, Unidad Biotecnol & Prototipos, Lab Bioquim Mol, Av Barrios 1, Tlalnepantla 54090, Estado De Mexic, Mexico
Laboratorio de Bioquímica Molecular, Unidad de Biotecnología y Prototipos, FES Iztacala, Universidad Nacional Autónoma de México, Av. de los Barrios No. 1, Colonia Los Reyes Iztacala, Tlalnepantla, Estado de México, 54090, Mexico
Leticia Arena-Ortiz, Maria:
Univ Nacl Autonoma Mexico, Sede Parque Cient Tecnol Yucatan, Lab Estudios Ecogen, Carretera Sierra Papacal Chuburna Puerto Km 5, Sierra Papacal 97302, Yucatan, Mexico
Hurtado, Luis A.:
Texas A&M Univ, Fac Genet, Dept Wildlife & Fisheries Sci Ecol & Evolutionary, College Stn, TX 77843 USA
Faculty of Genetics, Department of Wildlife and Fisheries Sciences Ecology and Evolutionary Biology IDP, Texas A and M University, College Station, TX 77843-2258, United States
Laboratorio de Estudios Ecogenómicos, sede Parque Científico Tecnológico de Yucatán, Universidad Nacional Autónoma de México, carretera Sierra Papacal Chuburna Puerto Km. 5, Sierra Papacal, Yucatán, 97302, Mexico
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