Simple and Complex Centromeric Satellites in Drosophila Sibling Species

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Simple and Complex Centromeric Satellites in Drosophila Sibling Species

Centromeres are the chromosomal sites of assembly for kinetochores, the protein complexes that attach to spindle fibers and mediate separation of chromosomes to daughter cells in mitosis and meiosis. In most multicellular organisms, centromeres comprise a single specific family of tandem repeats-often 100-400 bp in length-found on every chromosome, typically in one location within heterochromat...

متن کامل

Courtship Sound Production in Two Sympatric Sibling Drosophila Species.

Courting males of Drosophila persimilis produce a pulsed "vibration sound," with frequency of oscillation and pulse repetition rate markedly different from that of D. pseudoobscura. These differences probably contribute to reproductive isolation. Flight frequency is the same in both species. Brief "preliminary sounds" are common and the same in both species. Males with large parts of both wings...

متن کامل

Multifaceted, Cross-Generational Costs of Hybridization in Sibling Drosophila species

Maladaptive hybridization, as determined by the pattern and intensity of selection against hybrid individuals, is an important factor contributing to the evolution of prezygotic reproductive isolation. To identify the consequences of hybridization between Drosophila pseudoobscura and D. persimilis, we estimated multiple fitness components for F1 hybrids and backcross progeny and used these to c...

متن کامل

Pupariation site preference within and between Drosophila sibling species.

Holometabolous insects pass through a sedentary pupal stage and often choose a location for pupation that is different from the site of larval feeding. We have characterized a difference in pupariation site choice within and between sibling species of Drosophila. We found that, in nature, Drosophila sechellia pupariate within their host fruit, Morinda citrifolia, and that they perform this beha...

متن کامل

Phylogenetic Relationships among DROSOPHILA LONGICORNIS, DROSOPHILA PROPACHUCA and DROSOPHILA PACHUCA, a Triad of Sibling Species.

Drosophila longicornis, D. propachuca and D. pachuca comprise a triad of sibling species. They are morphologically indistinguishable, sympatric forms that, under laboratory conditions, are capable of exchanging genes through the production of fertile F(1) females. However, we have no evidence for introgressive hybridization in nature. The chromosomal constitution of our strains indicates that t...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Genetics

سال: 2018

ISSN: 1943-2631

DOI: 10.1534/genetics.117.300620