Translocation of a parthenogenesis gene candidate to an alternate carrier chromosome in apomictic Brachiaria humidicola
نویسندگان
چکیده
منابع مشابه
A Parthenogenesis Gene Candidate and Evidence for Segmental Allopolyploidy in Apomictic Brachiaria decumbens
Apomixis, asexual reproduction through seed, enables breeders to identify and faithfully propagate superior heterozygous genotypes by seed without the disadvantages of vegetative propagation or the expense and complexity of hybrid seed production. The availability of new tools such as genotyping by sequencing and bioinformatics pipelines for species lacking reference genomes now makes the const...
متن کاملتاثیر بازدارندگی ترشحات رشد brachiaria humidicola نیتریفیکاسیون
ممانعت از نیتریفیکاسیون در اکوسیستم‌های طبیعی چندین دهه است که مطرح می‌باشد. این اثرات ممانعت کنندگی یک ویژگی ژنوتیپ‌های وحشی می‌باشد تا ارقام تجاری. بسیاری از گیاهان مخصوصاً گراس‌ها نشان داده شده اند که دارای این خاصیت ممانعت از نیتریفیکاسیون هستند و اخیراً برخی ژنوتیپ‌های Brachiaria مخصوصاً humidicola Brachiaria توجه زیادی را به سبب نقش آن‌ها در کاهش میزان نیتریفیکاسیون در خاک از طریق ترشحات ریش...
متن کاملEvaluation of Biological Nitrification Inhibition (BNI) Capacity in a Biparental Mapping Population of Brachiaria humidicola
Soil nitrogen (N) loss due to rapid nitrification (oxidation of ammonium to nitrate) is a serious problem with economic and environmental implications. As a result, a large proportion of N fertilisers applied to crops are lost to the environment via nitrate leaching and nitrous oxide emissions. The tropical pasture grass Brachiaria humidicola (Bh) exudes organic molecules from roots that inhibi...
متن کاملOrigin of a polyploid accession of Brachiaria humidicola (Poaceae: Panicoideae: Paniceae).
Brachiaria humidicola, a species adapted to poorly drained and infertile acid soils, is widely used throughout the tropics. Cytological characterization of 54 accessions of B. humidicola for breeding purposes revealed 2n = 36, 42, and 54 chromosomes. One accession (H030), with 2n = 42 chromosomes, showed a different meiotic behavior. In most accessions from the genus Brachiaria previously studi...
متن کاملMeiotic behavior of a nonaploid accession endorses x = 6 for Brachiaria humidicola (Poaceae).
Brachiaria humidicola (Poaceae), originally from Africa, is an economically important pasture plant in tropical South America. An accession of B. humidicola (H038) collected from the wild African savanna (Mbeya, Tanzania) showed irregular microsporogenesis. This meiotic behavior was consistent with an allopolyploid origin. Multivalent chromosome association at diakinesis gave tri- to octavalent...
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ژورنال
عنوان ژورنال: BMC Genomics
سال: 2019
ISSN: 1471-2164
DOI: 10.1186/s12864-018-5392-4