The native Brazilian cotton Gossypium mustelinum has never been planted. It is tetraploid and may cross with cultivated cotton. Endemic to Northeast Brazil, it was known only in the semi-arid, but expeditions in 2011, 2015 and 2016 localized populations in the coast of Northeast Brazil, Paraiba and Pernambuco, as predicted before by niche simulations, in preservation areas. New climatic modeling shows that it can still be found in Pernambuco Semiarid, despite the lack of herbaria and germplasm banks informations. Historical data shows that the preserved populations are in regions where sympatry did not occur during the last 47 years, Gene flow is unlikely to be a thread, and communication may foster significantly in situ preservation.

中文翻译：

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原产巴西棉花棉芥的原产地维护面临的挑战和机遇

从未种植过巴西棉花棉花芥末。它是四倍体，可与栽培棉杂交。如以前通过生态位模拟所预测的那样，该病仅在半干旱地区流行，但仅在半干旱地区才知道，但在2011年，2015年和2016年的探险中，如先前的利基模拟所预测的那样，在保护区中对巴西东北海岸，帕拉伊巴和伯南布哥州的本地种群进行了研究。新的气候模拟表明，尽管缺乏草科和种质库信息，但仍可以在伯南布哥岛半干旱地区找到它。历史数据表明，保存的种群位于最近47年内未发生交联的区域，基因流不太可能成为线，并且交流可能显着促进原位保存。